Year 8 Energy retrieval

Quiz by Andrea French

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29 questions

Show answers

- Q1What is this apparatus called?ThermometerExperiment machineData loggerMeter60s
- Q2Why do we use a data logger?More scientificCleanerPreciseEasier60s
- Q3Why do we use a data logger?AccurateCleanerMore scientificEasier60s
- Q4In physics, what does work mean?The transfer of energy when a force moves an object in Newtons.The transfer of time when a force moves an object in Joules.The transfer of distance when a force moves an object in Joules.The transfer of energy when a force moves an object in Joules.60s
- Q5The children are doing work. What does work mean?The transfer of time when a force moves an object in Joules.The transfer of energy when a force moves an object in Joules.The transfer of energy when a force moves an object in Newtons.The transfer of distance when a force moves an object in Joules.60s
- Q6Pushing a box is work. What does work mean?The transfer of energy when a force moves an object in Newtons.The transfer of time when a force moves an object in Joules.The transfer of energy when a force moves an object in Joules.The transfer of distance when a force moves an object in Joules.60s
- Q7What is the equation for calculating work done?Work done (J) = force (N) x distance moved (m)Work done (J) = force (N) + distance moved (m)Work done (J) = force (N) / distance moved (m)Force (N) = Pressure (N/cm2) x distance moved (m)60s
- Q8What is the work done to lift the 10N box up 2m?10 + 2 = 12J2 x 10 = 20J1/10 = 0.5J10/2 =5J60s
- Q9What is the work done to push the 500N box 2m?500 x 2 = 1000J500/2 =250J2/500 = 0.004J500 + 2 = 502J60s
- Q10How does the input force (effort) of this simple machine compare to its output force (load)?SmallerBiggerNo differenceSame60s
- Q11How does the distance moved of this machine change from input force to output force?SameDon't knowLargerSmaller60s
- Q12How can we describe the screwdriver in this diagram?PulleyLeverTooldata logger60s
- Q13In the diagram, the input force is the same size as the output force.Explain why it is easier to lift the weight with this pulley system than without it.Able to use friction to help you pull downAble to use your hand to help you pull downAble to use your weight to help you pull downAble to use gravity to help you pull down60s
- Q14In the diagram, the input force is the same size as the output force.Explain why it is easier to lift the weight with this pulley system than without it.Able to use your weight to help you pull downAble to use friction to help you pull downAble to use your hand to help you pull downAble to use gravity to help you pull down60s
- Q15The input force is smaller than the output force for the pulley system in the diagram. Explain how this is possibleThe distance moved by the input force is greater than the distance moved by output force so the output force is increasedThe distance moved by the input force is the same than the distance moved by output force so the output force is reducedThe distance moved by the input force is smaller than the distance moved by output force so the output force is reducedThe distance moved by the input force is greater than the distance moved by output force so the output force is reduced60s