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 standing C. accelerate B. keep moving in the same direction D. keep moving at the same speed 4. How can you tell if the forces acting on an object are balanced? Circle the best answer for the diagram above: 5. The forces are PUSHING / PULLING. 8. There IS / IS NO motion. 6. The forces are WORKING TOGETHER / OPPOSITE. 7. The forces are BALANCED / UNBALANCED. 9. The net forces is: 10. The blocks in the diagrams below have unbalanced forces acting upon them. Give the net force and direction of the square block below 11. What force works against motion? A. speed C. push B. friction D. velocity
12. Complete the magic triangle for the speed equation. 14. How far can you get away from your little brother with the squirt gun filled with paint if you can travel at 3 m/s and you have 15s before he sees you? 13. What is the average speed of the Bullet Train in Japan if it can travel 561 miles in 3 hours? 15. How much time would it take a bug to travel 6 meters across the classroom floor if it moved at 1.5 m/s? Look at the graph to the right of Marie s trip to work. Which graph segments fit the following? 16. At rest: 17. Fast speed: 18. Slow speed: 19. Going backwards: 20. Going forward: 21. Newton calculated that acceleration due to gravity was this: 22. A car is moving on a road at 70 km/hr going due north, and then changes direction and starts traveling northeast staying at 70 km/hr. Decide if the following statements are true or false regarding what happens to the car s speed and velocity? A The speed of the car changes, but the velocity stays the same. B The velocity of the car changes, but the speed stays the same. C Both the speed and velocity of the car change. D Neither the speed nor the velocity of the car changes. E. The speed of the car changes but there is no velocity. 23. Put an A, B, C, D or E in the correct section of the Venn diagram to the right the matches the description below. A shows how fast an object is going B shows the direction of an object C shows change in speed D shows change in direction E shows the distance traveled over time.
24. Newton s first law most directly addresses (has to do with). (Hint: it starts with an i ) 25. The greater the mass of an object, the the inertia. (more or less?) 26. Newton would say Force = 27. Your bicycle has a mass of 9.1 kilograms. You accelerate at a rate of 2 m/s 2. Calculate the net force that is accelerating the bicycle. 28. A runner has a mass of 84 kg. He produces a force of 12 Newtons between the ground and his running shoes. How fast does he accelerate? 29. You are riding fast on a skateboard when your wheel suddenly gets stuck in a crack on the sidewalk. Why does your body go flying forward? a. there is a balanced force pushing you off your skateboard b. your friend secretly tripped you c. your inertia keeps you moving forward d. the skateboard gained friction as the speed increased e. someone pushed you f. the lack of friction between the skateboard and sidewalk caused you to fly forward. 30. Identify which of Newton s laws the following are best examples of. a. A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. b. A person s body is thrown outward as a car rounds a curve on a highway. c. A picture is hanging on a wall and does not move. d. A roller coaster ride comes to a quick stop and your body bounces back into your seat after hitting the lap bar. e. The amount of force of the passenger as he hits the lap bar f. A soccer ball accelerates more than a bowling ball when thrown with the same force. g. A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.
Use the graph below to answer questions #31-32. 31. A car of a roller coaster coasts from point A to point B. The speed of the car increases because. a. only balanced forces act on the car. c. unbalanced forces act on the car. b. an inside force acts on the car. d. no forces act on the car. 32. The force that resists motion between the car s wheels and the track of the roller coaster is a. net force b. balanced c. friction d. acceleration