Science Assessment Year 5: Paper A: Forces. Measuring Forces. of the Earth? a) Mass is a force. b) Weight is a force. c) Length is a force.
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1 Name: Science Assessment Year 5: Paper A: Forces Date: 5 total marks Measuring Forces. In what units do we measure force?. What is the name of the force that pulls things towards the centre of the Earth? 3. Who discovered this force? 4. What piece of equipment do we use to measure force? 5. Write true or false next to each of these statements. a) Mass is a force. b) Weight is a force. c) Length is a force. d) A force is a push or a pull. 3 marks 6. Explain why astronauts move in a bouncy way on the moon. twinkl.co.uk. You may photocopy.
2 7. Explain why astronauts in space float around. Forces in Water 8. Label the force that is pushing against this swimmer in the water. 9. How does the shape of this shark help it to move quickly through the water? twinkl.co.uk. You may photocopy.
3 0. All these shapes are made from the same material. Circle the shape that would fall the fastest in water and explain why. This is because... marks Boat Investigation. A group of children want to investigate if the shape of a boat affects how much weight it can hold. They all make a boat out of tin kitchen foil and they will float them on a tank of water and fill with weights until the boat sinks. What is the one controlled variable they will change?. Name a variable that must stay the same. 3. What is the variable they will measure and record in their results table? twinkl.co.uk. You may photocopy. 3
4 4. Here are the results: Boat Number st Test Weight Held nd Test Weight Held 3rd Test Weight Held large rectangle 050g 990g 00g Streamlined and long 890g 768g 845g 3 Small, double layered cup shape 445g 430g 5g 4 Small rectangle with double layer of tin foil 330g 40g 376g a) What should be the title of column b) What would go in the empty 5th column at the end? c) Which result looks like an anomaly? d) What could be a reason for this anomaly? twinkl.co.uk. You may photocopy. 4
5 e) Why have the group tested each boat 3 times? marks f) If the large rectangle boat was checked a 4th time, what might the result be? 5. What conclusion could you draw from these results? marks twinkl.co.uk. You may photocopy. 5
6 Answer Sheet: Science Assessment Year 5: Paper A: Forces question answer marks notes. In what units do we measure force? for: Newtons Newton Give mark for not using a capital letter or small errors in spelling.. What is the name of the force that pulls things towards the centre of the Earth? for: Gravity 3. Who discovered this force? for any of: Sir Isaac Newton Isaac Newton Newton 4. What piece of equipment do we use to measure force? for either: Forcemeter Newton meter 5. Write TRUE or FALSE next to each of these statements. a False b c True False 3 for correct marks for 3 correct 3 marks for 4 correct d True 6. Explain why astronauts move in a bouncy way on the moon. for any of: There is less gravity There is only /6 of the gravity of Earth 7. Explain why astronauts in space float around. Answer MUST mention the word gravity. No marks for no gravity No marks for they weigh less for less gravity. No marks for no gravity as there is always some gravity in space. 8. Label the force that is pushing against this swimmer in the water. Water resistance for water resistance labelled on the diagram. twinkl.co.uk. You may photocopy. 6
7 question answer marks notes 9. How does the shape of this shark help it to move quickly through the water? for mentioning: streamlined The word streamline/ streamlined must be used in the answer. 0. All these shapes are made from the same material. Circle the shape that would fall fastest in water and explain why. nd mark for explanations that include the word: Streamline/streamlined. What is the ONE controlled variable they will change? for: The shape of the boat. Name a variable that must stay the same. for any of: Amount of tin foil (best answer) Depth/amount of water Same type of weights used (i.e. in 0g pieces rather than 00g pieces) 3. Name a variable that must stay the same. 4. Here are the results: for: The amount of weight the boat holds. Accept other methods of denoting shape e.g. a tick. Do not give a mark for more than one shape marked as correct. a b c d e for any of: Shape of boat Style of boat Type of boat for: Average/mean Average/mean weight for: 5g for any of: The boat broke/sprang a leak. Wrote it down wrong Counted wrong marks for any of: To check for anomalies/errors Make it more accurate To take an average/mean twinkl.co.uk. You may photocopy. 7
8 question answer marks notes f for answers in the range: 900g-00g Accept answers written in kg but equivalent. 5. What conclusion could you draw from these results? marks for answers that include both a reference to the amount of weight the boat can hold and the surface area. total 5 twinkl.co.uk. You may photocopy. 8
A force can be measured using an instrument called a force meter (sometimes called a newton meter or spring balance)
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