Physics terms. coefficient of friction. static friction. kinetic friction. rolling friction. viscous friction. air resistance
|
|
|
- Maud Phelps
- 5 years ago
- Views:
Transcription
1 Friction
2 Physics terms coefficient of friction static friction kinetic friction rolling friction viscous friction air resistance
3 Equations kinetic friction static friction rolling friction Models for friction The friction force is approximately equal to the normal force multiplied by a coefficient of friction.
4 What is friction? Friction is a catch-all term that collectively refers to all forces which act to reduce motion between objects and the matter they contact. Friction often transforms the energy of motion into thermal energy or the wearing away of moving surfaces.
5 Kinetic friction Kinetic friction is sliding friction. It is a force that resists sliding or skidding motion between two surfaces. If a crate is dragged to the right, friction points left. Friction acts in the opposite direction of the (relative) motion that produced it.
6 Friction and the normal force Which takes more force to push over a rough floor? The board with the bricks, of course! The simplest model of friction states that frictional force is proportional to the normal force between two surfaces. If this weight triples, then the normal force also triples and the force of friction triples too.
7 A model for kinetic friction The force of kinetic friction Ff between two surfaces equals the coefficient of kinetic friction μk times the normal force FN. direction of motion The coefficient of friction is a constant that depends on both materials. Pairs of materials with more friction have a higher μk. Basically the μk tells you how many newtons of friction you get per newton of normal force.
8 A model for kinetic friction The coefficient of friction μk is typically between 0 and 1. direction of motion When μk = 0 there is no friction. When μk = 0.5 the friction force equals half the normal force. When μk = 1.0 the friction force equals the normal force.
9 Calculating kinetic friction Consider a 30 N brick sliding across a floor at constant speed. What is the friction force on the brick if μk = 0.5? The force F needed to make the board slide at constant speed must also be 15 N.
10 Static friction Static friction is gripping friction. It is a force that prevents relative motion between surfaces in contact with each other. Without static friction between your feet and the floor, you could not walk or run. Your feet would slip. Without static friction between your tires and the road, you could not start or stop a car.
11 Static friction Static friction prevents this crate from sliding when pushed until the pushing force is greater than the maximum static friction force available.
12 Static friction How much static friction acts in case a? 120 N In case b? 160 N The crate is at rest so the net force must be zero. The static friction increases exactly as needed to keep the box at rest.
13 Static friction What is the maximum static friction available? 200 N Once the maximum static friction is exceeded, the crate begins to move.
14 A model for static friction The maximum static friction force Ff between two surfaces is the coefficient of static friction μs times the normal force FN. direction of applied force When μs = 0 there is no friction. When μs = 0.5 the maximum friction force equals half the normal force. When μs = 1.0 the maximum friction force equals the normal force.
15 Calculating static friction A 10 N board is at rest on a table. How much force does it take to start the board sliding if μs = 0.2? The applied force F must be enough to break the grip of static friction. mg = -10 N FN = +10 N
16 Calculating static friction A 10 N board is at rest on a table. How much force does it take to start the board sliding if μs = 0.2? 2 N is the maximum force of static friction available. 2 N is also the minimum force needed to start the board moving. mg = -10 N FN = +10 N
17 Rolling friction Many machines, such as cars and bicycles, experience rolling friction. The equation model for rolling friction is similar to the model for sliding friction.
18 Coefficient of rolling friction Rolling friction comes mainly from slight deformations of the wheel. It is typically much lower than static or kinetic friction. Larger wheels tend to have lower coefficients of friction.
19 Viscous friction Fluid friction is the largest source of friction for cars, boats, and aircraft at speeds above 50 mph. There are two main sources of fluid friction: the force required to push the fluid out of the way the resistance of the fluid due to viscosity Viscous friction is complex. It depends on speed, shape, and fluid properties.
20 Shape factors The drag coefficient describes how easily fluid flows around a particular shape. Blunt objects have high drag coefficients. Aerodynamic, streamlined shapes have low drag coefficients.
21 Viscosity Viscosity describes a fluid s resistance to flow. Air has a very low viscosity. Water also has a low viscosity and pours readily. Honey has a high viscosity and pours slowly.
22 Assessment 1. A box with a mass of 10 kg is at rest on the floor. The coefficient of static friction between the box and the floor is Estimate the force required to start sliding the box. The required force is about 29 N.
23 Assessment 2. A 500-gram puck is sliding at 20 m/s across a level surface. The coefficient of kinetic friction between the puck and surface is a. Draw a free-body diagram for the puck. b. Calculate the magnitude of each force. direction of motion
DYNAMICS PROBLEM SOLVING
DYNAMICS PROBLEM SOLVING 1. An elevator of mass 800 kg accelerates at 3.0 m/s 2 [down]. What force does the cable exert on the elevator? (5400 N) 2. The engine of a train has a mass of 5.0 x 10 4 kg. It
EF 151 Exam #2 - Spring, 2016 Page 1 of 6
EF 151 Exam #2 - Spring, 2016 Page 1 of 6 Name: Section: Instructions: Sit in assigned seat; failure to sit in assigned seat results in a 0 for the exam. Put name and section on your exam. Put seating
The table below shows how the thinking distance and braking distance vary with speed. Thinking distance in m
Q1.The stopping distance of a car is the sum of the thinking distance and the braking distance. The table below shows how the thinking distance and braking distance vary with speed. Speed in m / s Thinking
6. What net external force is required to give a 25 kg suitcase an acceleration of 2.2 m/s2 to the right? Draw a free-body diagram of the suitcase.
HONORS PHYSICS PROBLEM SET NEWTON S LAWS & FORCES ONE DIMENSIONAL FORCES 1. The net external force on the propeller of a 0.75 kg model airplane is 17 N forward. What is the acceleration of the airplane?
Basics, Types, Use and Applications
Basics, Types, Use and Applications 2015 by Brilliant Classes 2015 by Brilliant Classes Science : Physics Unit : Friction Friction : Basics, Types, Use and Applications The following topics are included
Physics P201 D. Baxter/R. Heinz
Seat # Physics P201 D. Baxter/R. Heinz EXAM #1 September 26, 2002 7:00 9:00 PM INSTRUCTIONS 1. Sit in SEAT # given above. 2. DO NOT OPEN THE EXAM UNTIL YOU ARE TOLD TO DO SO. 3. Print your name (last name
Question: Bicycles. Observations About Bicycles. Static Stability, Part 1. Static Stability, Part 2. Static Stability, Part 3
Bicycles 1 Bicycles 2 Question: Bicycles How would raising the height of a sport utility vehicle affect its turning stability? 1. Make it less likely to tip over. 2. Make it more likely to tip over. 3.
EF 151 Exam #2 - Fall, 2014 Page 1 of 6
EF 151 Exam #2 - Fall, 2014 Page 1 of 6 Name: Section: Instructions: Put your name and section on the exam. Do not open the test until you are told to do so. Write your final answer in the box provided
Uncontrolled copy not subject to amendment. Principles of Flight
Uncontrolled copy not subject to amendment Principles of Flight Principles of Flight Learning Outcome 1: Know the principles of lift, weight, thrust and drag and how a balance of forces affects an aeroplane
PYP 001 First Major Exam Code: Term: 161 Thursday, October 27, 2016 Page: 1
Term: 161 Thursday, October 27, 2016 Page: 1 *Read the following (20) questions and choose the best answer: 1 The motion of a swimmer during 30.0 minutes workout is represented by the graph below. What
Agood tennis player knows instinctively how hard to hit a ball and at what angle to get the ball over the. Ball Trajectories
42 Ball Trajectories Factors Influencing the Flight of the Ball Nathalie Tauziat, France By Rod Cross Introduction Agood tennis player knows instinctively how hard to hit a ball and at what angle to get
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Hang from a pair of gym rings and the upward support forces of the rings will always
Fluids. How do fluids exert pressure? What causes objects to float? What happens when pressure in a fluid changes? What affects the speed of a fluid?
CHAPTER 3 SECTION 3 States of Matter Fluids KEY IDEAS As you read this section, keep these questions in mind: How do fluids exert pressure? What causes objects to float? What happens when pressure in a
Types of Forces. Pressure Buoyant Force Friction Normal Force
Types of Forces Pressure Buoyant Force Friction Normal Force Pressure Ratio of Force Per Unit Area p = F A P = N/m 2 = 1 pascal (very small) P= lbs/in 2 = psi = pounds per square inch Example: Snow Shoes
PHYSICS REVIEW SHEET 2010 MID-TERM EXAM
PHYSICS REVIEW SHEET 2010 MID-TERM EXAM Concepts And Definitions Definitions of fact, hypothesis, law, theory Explain the scientific method Difference between average and instantaneous speed and speed
AP Physics 1 Lesson 4 Homework Outcomes Quiz 4 Preparation. Name. Date. Period
Physics 1 Lesson 4 Homework Outcomes Quiz 4 Preparation Name Date Period Practice Problems I. A continuous force of 2.0 N is exerted on a 2.0 kg block to the right. The block moves with a constant horizontal
DATA EQUATIONS MATH ANSWER
HCP PHYSICS REVIEW SHEET MID TERM EXAM Concepts And Definitions 1. Definitions of fact, hypothesis, law, theory 2. Explain the scientific method 3. Difference between average and instantaneous speed and
Additional Information
Buoyancy Additional Information Any object, fully or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. Archimedes of Syracuse Archimedes principle
Question: Bicycles. Vehicle s Static Stability, Part 1. Observations About Bicycles. Vehicle s Static Stability, Part 2
Bicycles 1 Bicycles 2 Question: Bicycles How would raising the height of a small pickup truck affect its turning stability? 1. Make it less likely to tip over. 2. Make it more likely to tip over. 3. Have
REVIEW : KINEMATICS
1 REVIEW 5-4-16: KINEMATICS Kinematics-Defining Motion 1 A student on her way to school walks four blocks east, three blocks north, and another four blocks east, as shown in the diagram. Compared to the
Friction: A Force That Opposes Motion
Friction: A Force That Opposes Motion Station 3 Think About It: Climbing a vertical rock wall means pitting your strength and stamina against the force of gravity, which pulls you down toward the ground.
CASE STUDY FOR USE WITH SECTION B
GCE A level 135/01-B PHYSICS ASSESSMENT UNIT PH5 A.M. THURSDAY, 0 June 013 CASE STUDY FOR USE WITH SECTION B Examination copy To be given out at the start of the examination. The pre-release copy must
Copyright 2014 Edmentum - All rights reserved.
Copyright 2014 Edmentum - All rights reserved. AP Physics Blizzard Bag 2014-2015 Classical Mechanics 1. A block of mass 4.0 kg is attached to the end of a spring. The spring stiffness constant is 25 N/m.
3. Approximately how far will an object near Earth's surface fall in 3.0 seconds? m m m m
Page 1 of 5 Sub work 10-10-02 Name 12-OCT-03 1. A car travels a distance of 98 meters in 10. seconds. What is the average speed of the car during this 10.-second interval? 1. 4.9 m/s 3. 49 m/s/ 2. 9.8
Chapter 15 Fluid. Density
Density Chapter 15 Fluid Pressure Static Equilibrium in Fluids: Pressure and Depth Archimedes Principle and Buoyancy Applications of Archimedes Principle By Dr. Weining man 1 Units of Chapter 15 Fluid
PHYSICS 20 Vectors and Dynamics
NEWTONS 1st LAW 1. A 10.00 kg mass is tied to a string with a maximum strength of 100 N. A second string of equal strength is tied to the bottom of the mass. a) If the bottom string is pulled with a jerk
Journal of Aeronautics & Aerospace
Journal of Aeronautics & Aerospace Engineering Journal of Aeronautics & Aerospace Engineering Landell-Mills, J Aeronaut Aerospace Eng 2017, 6:2 DOI: 10.4172/2168-9792.1000189 Research Article Open Access
1. Determine his speed when he reaches the photo radar car.
Physics Unit Review 5 Use the following information to answer the next two questions. Mr. Buffi is cruising at 18.9 m/s when he sees a suspicious car (perhaps a photo radar car?) parked on the side of
Friction occurs when surfaces slide against each other.
Chapter 12, Section 2 Key Concept: Friction is a force that opposes motion. BEFORE, you learned Gravity is the attractive force masses exert on each other Gravity increases with greater mass and decreases
1) What is the magnitude of the momentum of a kg baseball traveling at 45.0 m/s?
Momentum review 6) Two friends are standing on opposite ends of a canoe that is initially at rest with respect to a frictionless lake. The person in the front throws a very massive ball toward the back,
STATION 1: HOT WHEELIN PHYSICS 1. Define Newton s First Law. 2. Describe the motion of the untaped washer when the car hits the pencils.
Name Date Period STATION 1: HOT WHEELIN PHYSICS 1. Define Newton s First Law. 2. Describe the motion of the untaped washer when the car hits the pencils. 3. Describe the motion of the taped washer when
Force and Motion Test Review
Name: Period: Force and Motion Test Review 1. I can tell you that force is.. 2. Force is measured in units called. 3. Unbalanced forces acting on an object will MOST LIKELY cause the object to A. remain
5. A bead slides on a curved wire, starting from rest at point A in the figure below. If the wire is frictionless, find each of the following.
Name: Work and Energy Problems Date: 1. A 2150 kg car moves down a level highway under the actions of two forces: a 1010 N forward force exerted on the drive wheels by the road and a 960 N resistive force.
Lecture Outline Chapter 15. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.
Lecture Outline Chapter 15 Physics, 4 th Edition James S. Walker Chapter 15 Fluids Density Units of Chapter 15 Pressure Static Equilibrium in Fluids: Pressure and Depth Archimedes Principle and Buoyancy
Instructor: Biswas/Ihas/Whiting PHYSICS DEPARTMENT PHY 2053 Exam 1, 120 minutes October 14, 2009
Instructor: Biswas/Ihas/Whiting PHYSICS DEPARTMENT PHY 2053 Exam 1, 120 minutes October 14, 2009 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on
Key Terms Chapter 7. boiling boiling point change of state concentration condensation deposition evaporation flow rate fluid freezing point
Foldable Activity Using the instructions on page 267 in your textbook on how to make foldables, write a key term on each front tab, and the definition on the inside (see example that I made up). You will
Chapter 6. You lift a 10 N physics book up in the air a distance of 1 meter at a constant velocity of 0.5 m/s. The work done by gravity is
I lift a barbell with a mass of 50 kg up a distance of 0.70 m. Then I let the barbell come back down to where I started. How much net work did I do on the barbell? A) - 340 J B) 0 J C) + 35 J D) + 340
NAME:... SCHOOL: LINEAR MOTION. Answer ALL questions in this paper in the spaces provided.
NAME:.... SCHOOL: DATE:... LINEAR MOTION INSTRUCTIONS TO CANDIDATES Answer ALL questions in this paper in the spaces provided. 1. Two forces that act on a moving cyclist are the driving force and the resistive
Exam Unit 5: Motion and Forces
Exam Unit 5: Motion and Forces 1. Aleshia is moving forward at constant speed of 2 m/s. Which statement correctly describes Aleshia s movement? A. Her speed is increasing by 2 m/s every second. B. She
The Fly Higher Tutorial IV
The Fly Higher Tutorial IV THE SCIENCE OF FLIGHT In order for an aircraft to fly we must have two things: 1) Thrust 2) Lift Aerodynamics The Basics Representation of the balance of forces These act against
POTENTIAL ENERGY AND ENERGY CONSERVATION
POTENTIAL ENERGY AND ENERGY CONSERVATION 1. Sky Jump: You have landed a summer job with a company that has been given the contract to design the ski jump for the next Winter Olympics. The track is coated
Chapter 15 Fluids. Copyright 2010 Pearson Education, Inc.
Chapter 15 Fluids Density Units of Chapter 15 Pressure Static Equilibrium in Fluids: Pressure and Depth Archimedes Principle and Buoyancy Applications of Archimedes Principle Fluid Flow and Continuity
A child places a car of mass 95 g on the track. She adjusts the controller to a power of 4.2 W so the car accelerates from rest for 0.40 s.
1 The picture shows a track for racing toy electric cars. A guide pin fits in a groove in the track to keep the car on the track. A small electric motor in the car is controlled, with a hand-controller,
7.3.2 Distance Time Graphs
7.3.2 Distance Time Graphs 35 minutes 39 marks Page 1 of 11 Q1. A cyclist goes on a long ride. The graph shows how the distance travelled changes with time during the ride. (i) Between which two points
Exam 3 Phys Fall 2002 Version A. Name ID Section
Closed book exam - Calculators are allowed. Only the official formula sheet downloaded from the course web page can be used. You are allowed to write notes on the back of the formula sheet. Use the scantron
I hope you earn one Thanks.
A 0 kg sled slides down a 30 hill after receiving a tiny shove (only enough to overcome static friction, not enough to give significant initial velocity, assume v o =0). A) If there is friction of µ k
Constant Acceleration: The physics of sailing
Constant Acceleration: The physics of sailing Sailing gives examples of physics: Newton's laws, vector subtraction, Archimedes' principle and others. This support page from Physclips asks How can a boat
CHANGES IN FORCE AND MOTION
reflect CRACK! That s the sound of a bat hitting a baseball. The ball fl ies through the air and lands over the fence for a home run. The motion of a batted ball seems simple enough. Yet, many forces act
3) A horse gallops a distance of 10 kilometers in a time of 30 minutes. Its average speed is A) 15 km/h. B) 20 km/h. C) 30 km/h. D) 40 km/h.
Physics Keller Midterm exam review The midterm exam will be seventy questions selected from the following. The questions will be changed slightly, but will remain essentially the same. 1) A truck is moving
EOY Force and Motion REVIEW
Name: ate: 1. The diagram shows two bowling balls of equal mass. all is resting near the edge of a shelf. all is resting on the ground below. 2. Two workers use a ramp to help lift a box onto a dock as
NEWTON S LAWS OF MOTION
NEWTON S LAWS OF MOTION Force The ability to cause a change in a state of motion of an object (Vector) The only thing that can cause an object to accelerate is a Force An object at rest will remain at
Which student do you agree with (if any)? Please explain your reasoning.
Practice Test 1 1. Shown below is a speed-time graph for a cart moving in front of the motion sensor. For convenience it has been divided into five sections (A,B,C,D,E). B C D A E During each of the five
Force, Motion and Energy Review
NAME Force, Motion and Energy Review 1 In the picture to the right, two teams of students are playing tug-of-war. Each team is pulling in the opposite direction, but both teams are moving in the same direction.
1. All fluids are: A. gases B. liquids C. gases or liquids D. non-metallic E. transparent ans: C
Chapter 14: FLUIDS 1 All fluids are: A gases B liquids C gases or liquids D non-metallic E transparent 2 Gases may be distinguished from other forms of matter by their: A lack of color B small atomic weights
PHYSICS 12 NAME: Kinematics and Projectiles Review
NAME: Kinematics and Projectiles Review (1-3) A ball is thrown into the air, following the path shown in the diagram. At 1, the ball has just left the thrower s hand. At 5, the ball is at its original
All work on this packet is my own. I have not done anything to give myself or anyone else an unfair advantage on this assignment.
AP Physics Summer Packet Name: Period: All work on this packet is my own. I have not done anything to give myself or anyone else an unfair advantage on this assignment. Signature: I care significantly
Homework #10 Due Monday, May Compute the moment of inertia of the objects below.
Homework #10 Due Monday, May 1. Compute the moment of inertia of the objects below. θ (a) Compute the moment of inertia of a thin rod of mass M and length R for rotations about its end. Explain why your
Physics P201 D. Baxter/R. Heinz
Seat # Physics P201 D. Baxter/R. Heinz EXAM #1 September 20, 2001 7:00 9:00 PM INSTRUCTIONS 1. Sit in SEAT # given above. 2. DO NOT OPEN THE EXAM UNTIL YOU ARE TOLD TO DO SO. 3. Print your name (last name
Physics 2048 Test 2 Dr. Jeff Saul Spring 2001
Physics 2048 Test 2 Dr. Jeff Saul Spring 2001 Name: Table: Date: READ THESE INSTRUCTIONS BEFORE YOU BEGIN Before you start the test, WRITE YOUR NAME ON EVERY PAGE OF THE EXAM. Calculators are permitted,
Card 1 Chapter 17. Card 2. Chapter 17
Card 1 Card 2 Liquid A - 1.4 g/ml; Liquid B -.82 g/ml; Liquid C - 1.0 g/ml; one liquid you know. What is it? Also how will they stack? Where will a 1.6 g/ml object end up? Find the density of a 5 milliliter,
Chapter 11 [ Edit ] Exercise w = = 780. Chapter 11. Part A. Part B. Part C. Part D
![Chapter 11 [ Edit ] Exercise w = = 780. Chapter 11. Part A. Part B. Part C. Part D](/thumbs/93/113116401.jpg "Chapter 11 [ Edit ] Exercise w = = 780. Chapter 11. Part A. Part B. Part C. Part D")
Chapter 11 [ Edit ] Overview Summary View Diagnostics View Print View with Answers Chapter 11 Due: 11:59pm on Tuesday, April 10, 2018 To understand how points are awarded, read the Grading Policy for this
Unit A: Mix and Flow of Matter
Unit A: Mix and Flow of Matter Science 8 1 Section 3.0 THE PROPERTIES OF GASES AND LIQUIDS CAN BE EXPLAINED BY THE PARTICLE MODEL OF MATTER. 2 1 Viscosity and the Effects of Temperature Topic 3.1 3 Viscosity
Lesson 12: Fluid statics, Continuity equation (Sections ) Chapter 9 Fluids
Lesson : luid statics, Continuity equation (Sections 9.-9.7) Chapter 9 luids States of Matter - Solid, liquid, gas. luids (liquids and gases) do not hold their shapes. In many cases we can think of liquids
The Incredible Hull: Slip Sliding Away
Title: The Incredible Hull: Slip Sliding Away (Friction & Motion) Grade Level (s): 7-8 Introduction:Our common experience is that objects in motion do not often stay in motion. In real life when we move
Student Exploration: Uniform Circular Motion
Name: Date: Student Exploration: Uniform Circular Motion Vocabulary: acceleration, centripetal acceleration, centripetal force, Newton s first law, Newton s second law, uniform circular motion, vector,
Draw a graph of speed against time on the grid provided.
1. A car accelerates from rest to a speed of 26 m s 1. The table shows how the speed of the car varies over the first 30 seconds of motion. time/ s 0 5.0 10.0 15.0 20.0 25.0 30.0 speed/ m s 1 0 16.5 22.5
Name: Section: Force and Motion Practice Test
Name: Section: Force and Motion Practice Test Directions: For each of the questions or incomplete statements below, choose the best of the answer choices given and write your answer on the line. 1. Which
JSUNIL TUTORIAL,BIHAR FORCE AND PRESSURE. Forces which act only when there is physical contact between two interacting objects are known as
FORCE AND PRESSURE A force is a push or pulls acting on an object which changes or tends to change the state of the object. In the international system of units (SI System), the unit of force is Newton
Fluid Mechanics. Liquids and gases have the ability to flow They are called fluids There are a variety of LAWS that fluids obey
Fluid Mechanics Fluid Mechanics Liquids and gases have the ability to flow They are called fluids There are a variety of LAWS that fluids obey Density Regardless of form (solid, liquid, gas) we can define
Quantitative Properties of Gases. 1. Amount (mass or moles) 2. Volume 3. Pressure 4. Temperature
Chapter 2 Gases Quantitative Properties of Gases 1. Amount (mass or moles) 2. Volume 3. Pressure 4. Temperature Kinetic Molecular Theory: (Video) Smallest particles (atoms, ions or molecules) of a substance
Figure 1 Schematic of opposing air bearing concept
Theoretical Analysis of Opposing Air Bearing Concept This concept utilizes air bearings to constrain five degrees of freedom of the optic as shown in the figure below. Three pairs of inherently compensated
UNIT 2 FLUIDS PHYS:1200 LECTURE 12 FLUIDS (1)
1 UNIT 2 FLUIDS PHYS:1200 LECTURE 12 FLUIDS (1) Lecture 12 is the first lecture on the new topic of fluids. Thus far we have been discussing the physics of ideal solid objects that do not change their
Here is a summary of what you will learn in this section:
Mechanical Advantage Here is a summary of what you will learn in this section: A m achine is a mechanical system that reduces the force required to accomplish work. Machines m ake work easier by increasing
1. downward 3. westward 2. upward 4. eastward
projectile review 1 Name 11-DEC-03 1. A baseball player throws a ball horizontally. Which statement best describes the ball's motion after it is thrown? [Neglect the effect of friction.] 1. Its vertical
TEACHER ANSWER KEY December 10, Projectile Review 1
Projectile Review 1 TEACHER ANSWER KEY December 10, 2004 4 1. A baseball player throws a ball horizontally. Which statement best describes the ball's motion after it is thrown? [Neglect the effect of friction.]
Fluids, Pressure and buoyancy
Fluids, Pressure and buoyancy Announcements: CAPA due Friday at 10pm. Comment on the hint in Problem 5. CAPA solutions from previous sets can be found by logging onto CAPA and selecting View Previous Set
1. Which one of the following is a vector quantity? A. time B. speed C. energy D. displacement
1. Which one of the following is a vector quantity? A. time B. speed C. energy D. displacement 2. A car is travelling at a constant speed of 26.0 m/s down a slope which is 12.0 to the horizontal. What
End of Chapter Exercises
End of Chapter Exercises Exercises 1 12 are conceptual questions that are designed to see if you have understood the main concepts of the chapter. 1. While on an airplane, you take a drink from your water
PHYS 101 Previous Exam Problems
PHYS 101 Previous Exam Problems CHAPTER 14 Fluids Fluids at rest pressure vs. depth Pascal s principle Archimedes s principle Buoynat forces Fluids in motion: Continuity & Bernoulli equations 1. How deep
1 A Mangonel is a type of catapult used to launch projectiles such as rocks. A student made a working model of a Mangonel. crossbar. bucket.
1 A Mangonel is a type of catapult used to launch projectiles such as rocks. A student made a working model of a Mangonel. crossbar bucket arm rubber band string scale handle As the handle is turned, the
End of Chapter Exercises
End of Chapter Exercises Exercises 1 12 are conceptual questions that are designed to see if you have understood the main concepts of the chapter. 1. While on an airplane, you take a drink from your water
Chapter 3. Solids, Liquids, and Gases
Chapter 3 Solids, Liquids, and Gases Section 1: States of Matter Learning Objectives: Describe the characteristics of a solid Describe the characteristics of a liquid Describe the characteristics of a
Physics 2204 Review for test 3 Vectors and The first four sections of Unit 2
Physics 2204 Review for test 3 Vectors and The first four sections of Unit 2 1 You set out in a canoe from the east shore of a south-flowing river. To maximize your velocity relative to the shore you should
Chapter 9 Solids and Fluids
2/17/16 Chapter 9 Solids and Fluids Units of Chapter 9 Solids and Elastic Moduli Fluids: Pressure and Pascal s Buoyancy and Archimedes Fluid Dynamics and Bernoulli s Surface Tension, Viscosity, and Poiseuille
The diagram below represents the path of a stunt car that is driven off a cliff, neglecting friction.
1. A baseball is thrown at an angle of 40.0 above the horizontal. The horizontal component of the baseball s initial velocity is 12.0 meters per second. What is the magnitude of the ball s initial velocity?
- a set of known masses, - four weight hangers, - tape - a fulcrum upon which the meter stick can be mounted and pivoted - string - stopwatch
1. In the laboratory, you are asked to determine the mass of a meter stick without using a scale of any kind. In addition to the meter stick, you may use any or all of the following equipment: - a set
Bikes and Energy. Pre- Lab: The Bike Speedometer. A Bit of History
Bikes and Energy Pre- Lab: The Bike Speedometer A Bit of History In this lab you ll use a bike speedometer to take most of your measurements. The Pre- Lab focuses on the basics of how a bike speedometer
Energy Differences in Hilly Driving for Electric Vehicles:
Energ Differences in Hill Driving for Electric Vehicles: Introduction Consider the idealized hill (an isosceles triangle) shown in the bo, with the left and right angle being. Let d sides of the triangle
Honors Physics Semester 2 Final Exam Review
Honors Physics Semester 2 Final Exam Review 1600 kg 800 kg 9 m/s A truck with mass 1600 kg collides with a car with mass 800 kg at rest. They stick together and continue to move to the right. 1. What is
Vectors. Wind is blowing 15 m/s East. What is the magnitude of the wind s velocity? What is the direction?
Physics R Scalar: Vector: Vectors Date: Examples of scalars and vectors: Scalars Vectors Wind is blowing 15 m/s East. What is the magnitude of the wind s velocity? What is the direction? Magnitude: Direction:
Unit Conversion Worksheet
Name: Period Date: Unit Conversion Worksheet Conversions 1 hour = 3600 seconds 1 mile = 5280 feet 1 yard = 3 feet 1 meter = 3.28 feet 1 km = 0.62 miles 1 light second = 300,000,000 meters 1 kg = 2.2 lbs
Episode 209: Drag, air resistance and terminal velocity
Episode 209: Drag, air resistance and terminal velocity This episode starts by considering the forces acting on a falling body in air, and moves on to related experimental work. Summary Discussion and
Figure 1. What is the difference between distance and displacement?
Q1.A train travels from town A to town B. Figure 1 shows the route taken by the train. Figure 1 has been drawn to scale. Figure 1 (a) The distance the train travels between A and B is not the same as the
Problem Set 6: Static Equilibrium and Torque, Work-Kinetic Energy Theorem, Work Done by Friction and other Dissipative Forces
Problem Set 6: Static Equilibrium and Torque, Work-Kinetic Energy Theorem, Work Done by riction and other Dissipative orces Design Engineering Challenge: The Big Dig.007 Contest Hockey Puck Handling Strategies
EF 151 Final Exam - Spring, 2017 Page 3 Copy 223
EF 151 Final Exam - Spring, 2017 Page 3 Copy 223 Name: Section: 1. Enter your EXAM ID from your seating label. If you don t know your exam ID, enter 000. 0 1 2 3 4 5 6 7 8 9 Digit #1 Digit #2 Digit #3
SPEED, VELOCITY, ACCELERATION, & NEWTON STUDY GUIDE - Answer Sheet 1) The acceleration of an object would increase if there was an increase in the
SPEED, VELOCITY, ACCELERATION, & NEWTON STUDY GUIDE - Answer Sheet 1) The acceleration of an object would increase if there was an increase in the A) mass of the object. B) force on the object. C) inertia
Regents Exam Practice: Measurement, Kinematics, Free Fall, PJM, and UCM
Regents Exam Practice: Measurement, Kinematics, Free Fall, PJM, and UCM 1. Which quantity and unit are correctly paired? 2. Which is a derived unit? meter second kilogram Newton 3. The fundamental unit
Ch06 Work and Energy.notebook November 10, 2017
Work and Energy 1 Work and Energy Force = push or pull Work = force*distance (//) Technically: Work = force*distance*cos θ 2 Sample 1: How much work is done lifting a 5 N weight 3m vertically? 3 Work is
BIOMECHANICAL MOVEMENT
SECTION PART 5 5 CHAPTER 12 13 CHAPTER 12: Biomechanical movement Practice questions - text book pages 169-172 1) For which of the following is the athlete s centre of mass most likely to lie outside of
Aim To investigate the effect of drag on cones of various sizes, dropped through the air.
Aim Discovery Sheet To investigate the effect of drag on cones of various sizes, dropped through the air. Equipment four BLOODHOUND SSC cone templates scissors PVA glue (Pritt Stick type) 3m retractable