Free Printable Kinetic Energy

1.

Select all that apply: centi-

a)

1/100

b)

0.01

c)

100

d)

0.1

e)

0.001

2.

Convert 56 centimetres to metres.

a)

0.56 metres

b)

5.6 metres

c)

0.056 metres

d)

560 metres

e)

5600 metres

3.

Convert 56 metres to centimetres.

a)

0.56 centimetres

b)

5.6 centimetres

c)

0.056 centimetres

d)

5600 centimetres

e)

560 centimetres

4.

Convert 56 centimetres to millimetres.

a)

0.56 millimetres

b)

5.6 millimetres

c)

560 millimetres

d)

5600 millimetres

5.

Convert 56 kilometres to metres.

a)

560 metres

b)

5600 metres

c)

5.6 metres

d)

56000 metres

e)

0.056 metres

6.

Convert 56 metres to kilometres.

a)

560 metres

b)

5600 metres

c)

5.6 metres

d)

56000 metres

e)

0.056 metres

7.

Convert 56 megametres to kilometres.

a)

560 kilometres

b)

5600 kilometres

c)

5.6 kilometres

d)

56000 kilometres

e)

0.056 kilometres

8.

Convert 56 megametres to metres.

a)

560,000,000 metres

b)

56,000,000 metres

c)

5.6 metres

d)

56,000 metres

e)

0.056 metres

9.

Convert 56 micrometres to metres

a)

0.000056 metres

b)

0.0056 metres

c)

5.6 metres

d)

560 metres

e)

0.56 metres

10.

Convert 56 millimetres to kilometres

a)

0.000056 kilometres

b)

0.0056 kilometres

c)

5.6 kilometres

d)

560 kilometres

e)

0.56 kilometres

11.

Which of the following is the correct equation for kinetic energy?

a)

$E_k\ =\ \frac{1}{2}mv^2$

b)

$E_k\ =\ mv^2$

c)

$E_e\ =\ \frac{1}{2}ke^2$

d)

$E_k\ =\ \frac{1}{2}mv^{ }$

12.

Which of the following is the correct equation for mass?

a)

$\frac{2E_k}{v^2}\ =\ m$

b)

$\frac{E_k}{v^2}\ =\ m$

c)

$\frac{2E_k}{v^{ }}\ =\ m$

d)

$\frac{E_k}{v^{ }}\ =\ m$

13.

Which of the following is the correct equation for velocity?

a)

$\sqrt{\frac{2E_k}{m}}=\ v$

b)

$\sqrt{\frac{E_k}{m}}=\ v$

c)

$\frac{\sqrt{2E_k}}{m}=\ v$

d)

$\frac{2E_k}{m}=\ v$

14.

What is the unit of work?

a)

Newton

b)

Joule

c)

Watt

d)

meter

15.

Which equation is incorrect?

a)

$F\ =\ \frac{W}{s}$

b)

$W\ =\ F\ \times\ s$

c)

$s\ =\ \frac{W}{F}$

d)

$F\ =\ W\times s$

16.

Which of the following is the correct equation for distance?

a)

$F\ =\ \frac{W}{s}$

b)

$W\ =\ F\ \times\ s$

c)

$s\ =\ \frac{W}{F}$

d)

$s=\ W\times F$

17.

Which of the following is the correct equation for work done?

a)

$W\ =\ \frac{F}{s}$

b)

$W\ =\ F\ \times\ s$

c)

$W\ =\ \frac{s}{F}$

d)

$s=\ W\times F$

18.

If an object is moved a distance of 50 cm with a force of 0.65 N, how much work is done, in joules (J)?

a)

0.325

b)

32.5

c)

0.77

d)

1.3

19.

If an object is moved a distance of 4 metres with a force of 45 N, how much work is done, in joules (J)?

a)

180

b)

1800

c)

0.09

d)

11.25

20.

Nuclear power stations generate electricity through nuclear fission. Electricity can also be generated by burning shale gas. Shale gas is natural gas trapped in rocks. Shale gas can be extracted by a process called fracking. There is some evidence that fracking causes minor earthquakes. Burning shale gas adds carbon dioxide to the atmosphere. Which of the following is NOT an advantage of nuclear power compared with the use of shale gas to generate electricity.

a)

no carbon dioxide emitted

b)

nuclear power doesn’t cause earthquakes

c)

more energy released per kg of fuel

d)

nuclear power plants produce radioactive waste

21.

How far does an object move in metres (m) if a force of 700 newtons is applied and 50 joules of work is done?

a)

0.071

b)

17.5

c)

28,000

d)

0.71

22.

The main use of this fuel is transport.

a)

coal

b)

oil

c)

natural gas

23.

Burning this fuel can cause acid rain.

a)

oil

b)

coal

c)

natural gas

24.

If a roller-coaster cart moving towards the top of a track has 40 J of kinetic energy and 30 J of gravitational potential energy, how much gravitational potential energy will it have at the top of the track?

a)

70 J

b)

40 J

c)

30 J

d)

10 J

25.

If a falling ball has, at one point in its fall, 20 J of gravitational potential energy and 60 J of kinetic energy, how much kinetic energy will it have when it strikes the Earth?

a)

80 J

b)

60 J

c)

20 J

d)

40 J

26.

Which of the following is an example of a mechanical transfer of energy?

a)

A battery powering a light bulb.

b)

A candle generating heat

c)

A candle generating light

d)

A ball falling towards the Earth

27.

Which of the following is an example of a system producing useful energy?

a)

car: kinetic

b)

iPhone: thermal

c)

car: thermal

d)

lightbulb: thermal

28.

Which of the following is an example of a system producing useful energy?

a)

car: kinetic

b)

iPhone: thermal

c)

car: thermal

d)

lightbulb: thermal

29.

A ball is thrown up in the air with 100 J of kinetic energy. How much gravitational potential energy does the ball have stored at the peak of its throw?

a)

100 J

b)

50 J

c)

25 J

d)

10 J

30.

As the cyclist accelerates, the _______________________ energy store in the cyclist’s body decreases and the _______________________ energy of the cyclist increases.

a)

chemical; kinetic

b)

gravitational potential; kinetic

c)

elastic potential; kinetic

d)

kinetic; gravitational potential

e)

kinetic; chemical

31.

Which of the following is false?

a)

Energy is the product of an activity

b)

Energy cannot be created or destroyed

c)

When gravity pulls an object towards the ground, energy is transferred mechanically

d)

A car's engine produces useful kinetic energy and wasted thermal energy

32.

Which of the following is not a store of energy?

a)

friction

b)

magnetic

c)

electrostatic

d)

nuclear

33.

Which of the following is true?

a)

Energy is found only in living objects

b)

Energy is a fuel

c)

Energy is a substance or fluid

d)

Energy is associated only with movement

e)

Any store of energy may be transferred into another store

34.

Which of the following--select more than 1 answer--are fossil fuels?

a)

coal

b)

oil

c)

geothermal

d)

natural gas

35.

Propane and methane are examples of __.

a)

geothermal

b)

biomass

c)

natural gas

d)

coal

36.

Which of the following objects has more gravitational potential energy, if they are at the same height above the Earth?

a)

A 0.1 g object

b)

A 10,000 g object

c)

A 1,000 kg object

d)

A 0.1 kg object

37.

Which of the following correctly solves for gravitational field strength?

a)

$E_p=mgh$

b)

$g=hmE_p$

c)

$g=\frac{hm}{E_p}$

d)

$g=\frac{E_p}{hm}$

38.

Which of the following correctly solves for height?

a)

$E_p=mgh$

b)

$h=gmE_p$

c)

$h=\frac{gm}{E_p}$

d)

$h=\frac{E_p}{gm}$

39.

Which of the following correctly solves for mass?

a)

$E_p=mgh$

b)

$m=ghE_p$

c)

$m=\frac{gh}{E_p}$

d)

$m=\frac{E_p}{gh}$

40.

State the equation which links gravitational field strength, mass, height, and gravitational potential energy

a)

$E_p=\frac{m}{gh}$

b)

$E_p=mgh$

c)

$E_p=\frac{mg}{h}$

d)

$E_p=\frac{gh}{m}$

41.

Convert 0.78 kilojoules to joules.

a)

7,800 joules

b)

780 joules

c)

78 joules

d)

7.8 joules

e)

0.078 joules

42.

Convert 56 centimetres to metres.

a)

560 metres

b)

5600 metres

c)

5.6 metres

d)

0.56 metres

e)

0.056 metres

43.

Select all that apply: kilo-

a)

1/1000

b)

1000

c)

0.01

d)

10³

e)

10^-3

44.

Select all that apply: centi-

a)

1/1000

b)

100

c)

0.01

d)

0.001

e)

1/100

45.

Select all that apply: milli-

a)

1/1000

b)

1000

c)

0.1

d)

0.001

e)

1/100

46.

Calculate the time it takes for 18 joules of energy to be transferred, if power is 9 watts.

a)

2 seconds

b)

0.5 seconds

c)

162 seconds

d)

20 seconds

47.

Calculate the time it takes for 74 kilojoules of energy to be transferred, if power is 8 watts.

a)

9250 seconds

b)

9.25 seconds

c)

0.108 seconds

d)

592 seconds

48.

Calculate power if in 38 milliseconds, 66 joules of energy is transferred.

a)

1737 watts

b)

1.737 watts

c)

0.5758 watts

d)

173.7

49.

Calculate energy if in 89 centiseconds a system outputs 57 kilowatts of power.

a)

50730 joules

b)

5073 joules

c)

1.56 joules

d)

0.6404494 joules

50.

Calculate energy if in 58 seconds a system outputs 41 watts of power.

a)

2378 joules

b)

237.8 joules

c)

1.41 joules

d)

23780 joules

51.

Which of the following can be used to solve for energy?

a)

$E=\frac{P}{t}$

b)

$E=Pt$

c)

$P=Et$

d)

$E=\frac{t}{P}$

52.

Which of the following can be used to solve for time?

a)

$t=\frac{P}{E}$

b)

$t=PE$

c)

$P=Et$

d)

$t=\frac{E}{P}$

53.

Which of the following can be used to solve for power?

a)

$P=\frac{E}{t}$

b)

$P=\frac{t}{E}$

c)

$P=Et$

d)

$t=\frac{E}{P}$

54.

Calculate force if an object is moved 460 metres and 65 kilojoules of work is done.

a)

141.3 newtons

b)

14.1 newtons

c)

29900 newtons

d)

7.077 newtons

55.

If 5 kJ of work is done on an object that moves 15 m, how much force was applied to the object in newtons (N)?

a)

333.33

b)

0.033

c)

750,000

d)

33.3

56.

How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy?

a)

The kinetic energy does not depend on the mass of the bowling ball.

b)

The kinetic energy is increasing proportional to the mass of the bowling ball.

c)

The kinetic energy is decreasing proportional to the mass of the bowling ball.

d)

The kinetic energy is increasing proportional to the square of the mass of the bowling ball.

57.

Which of the following would reduce the dissipation of energy from a house to the surroundings?

a)

insulation

b)

large walls

c)

thin walls

d)

metal walls

58.

Dissipated energy is always

a)

wasted energy

b)

useful energy

c)

thermal energy

d)

chemical energy

59.

Which of the following is shown in the image?

a)

The ability of metals to conduct heat well due to delocalised electrons

b)

The tendency of nonmetals to conduct heat poorly

c)

The radiation of heat in a metal

d)

The transfer of heat in a fluid substance

60.

What sort of heat transfer has allowed this image to be formed?

a)

conduction

b)

convection

c)

radiation

61.

The electric kettle shown is used to boil water. Why is the total energy input to the kettle higher than the energy used to heat the water?

a)

Energy is absorbed from the surroundings.

b)

Energy is used to heat the kettle.

c)

The kettle is more than 100% efficient.

62.

The figure below shows a car with an electric motor. The car is moving along a flat road. Some energy is wasted. What happens to the wasted energy?

a)

it is transferred into the surroundings

b)

it is recycled by the car

c)

it is released through the car's exhaust

Kinetic Energy

Total questions: 62

Worksheet time: 31mins

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