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8.2a.KO.Practice.Energy

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

What do we call the law which states that: "Energy cannot be created or destroyed. It is only moved from store to another"

(a)  

2.

What are the units of energy?

(a)  

3.

What is the mnemonic we use for the different energy stores

(a)  

4.

Which energy store is associated with a moving object?

(a)  

5.

Which energy store is associated with an object high up?

(a)  

6.

Which energy store is associated with a battery?

(a)  

7.

Which energy store is associated with food?

(a)  

8.

Which energy store is associated with a fuel?

(a)  

9.

Which energy store is associated with a squashed spring?

(a)  

10.

Which energy store is associated with the Sun?

(a)  

11.

Which energy store is associated with a hot object?

(a)  

12.

What is the mnemonic we use for the different energy pathways?

(a)  

13.

Which pathway is involved when an object moves and experiences friction?

(a)  

14.

Which pathway is involved when an object is lifted up?

(a)  

15.

Which pathway is involved when an object falls through the air?

(a)  

16.

Which pathway is involved when the chemical store of a battery moves to the thermal store of a heater?

(a)  

17.

Which pathway is involved in transferring energy from the Sun to Earth?

(a)  

18.

Which pathway is involved in transferring energy stored in your body to an ice cube in your hand?

(a)  

19.

What might this energy transfer diagram be describing?

(a)  

20.

What is the name of the variable you change in an investigation?

(a)  

21.

What is the name of the variable you measure in an investigation?

(a)  

22.

An experiment where only the independent variable affects the dependent variable

(a)  

23.

What sort of graph/chart do we use for categoric variables?

(a)  

24.

What sort of graph/chart do we use for continuous variables?

(a)  

25.

What do scientists do to increase confidence that everyone agrees with their conclusions?

(a)  

26.

Is there gravity in space?

(a)  

27.

If you are using a glass apparatus in an experiment, what risk should always be included in your plan?

(a)  

28.

What do we call results that do not fit the pattern of the rest?

(a)  

29.

Name the useful energy store in an electric toaster.

(a)  

30.

Name a wasted energy store in an electric oven

(a)  

31.

What do we call the process where energy is always transferred to the thermal store of the surroundings?

(a)  

32.

What is the measurement of how good something is at not wasting energy?

(a)  

33.

What is the maximum value of efficiency possible?

(a)  

34.

What is power a measure of?

(a)  

35.

What are the units of power?

(a)  

36.

What are non-renewable fuels?

(a)  

37.

Name the 3 fossil fuels.

(a)  

38.

Other than fossil fuels, name one other non-renewable source.

(a)  

39.

Approximately how long does it take to make fossil fuels?

(a)  

40.

What gas do fossil fuels release when they are burned?

(a)  

41.

Nuclear power can produce huge amounts of electricity without the worry they will run out. What is their other big advantage?

(a)  

42.

Uranium is one nuclear fuel. Name the other common one.

(a)  

43.

What does renewable energy sources mean?

(a)  

44.

Growing biofuels takes space which could be used to grown food. Give one other disadvantage of biofuels.

(a)  

45.

Biofuels absorb carbon dioxide when they grow. If they release the same amount of carbon dioxide when they are burned we call them what?

(a)  

46.

What energy store do both wind and wave power use?

(a)  

47.

What energy store do both tidal and hydro-electric power use?

(a)  

48.

What energy store does Solar power use?

(a)  

49.

What energy store does Geothermal power use?

(a)  

50.

As an object increases its thermal store, what happens to the particles inside it?

(a)