Free Printable Energy Stores End of Topic Quiz

1.

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

a)

200 J

b)

80 J

c)

5 J

d)

2000 J

2.

What is the same as Work Done?

a)

Power

b)

Energy Transferred

3.

What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?

Let g = 9.8N/kg

a)

5,220,411 J

b)

532,695 J

c)

73.7 J

d)

54,356.6 J

4.

What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10m/s.

a)

80 J

b)

3.2 J

c)

160 J

d)

40 J

5.

Total energy = 350J
Useful energy = 70J

Workout the efficiency of this iphoneX.
$efficiency\ =\ \frac{useful\ energy}{total\ energy\ in}\ \times100\%$

a)

100%

b)

80%

c)

40%

d)

20%

6.

Which of these equations is correct?

a)

$efficiency\ =\ \frac{useful\ energy\ transferred}{total\ energy\ transferred}$

b)

$efficiency\ =\ \frac{total\ energy\ transferred}{useful\ energy\ transferred}$

c)

$energy\ =\ efficiency\ \times100\%$

d)

$efficiency\ =\ \frac{wasted\ energy\ transferred}{total\ energy\ tranferred}$

7.

What percent energy is wasted by a machine if the energy input is 262 J and the energy output is 131 J?

a)

5%

b)

50%

c)

100 J

8.

The SI unit in which kinetic energy is measured is

a)

Newton

b)

Kilogram

c)

Joules

d)

Metres per second

9.

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.

a)

18 J

b)

36 J

c)

12 J

d)

6 J

10.

If 68 W of power is produced in 18 seconds, how much work is done?

a)

1,224 J

b)

0.264 J

c)

3.77 J

d)

12.24 J

11.

If a group of workers can apply a force of 1,000 Newtons to move a crate 20 meters, what amount of work will they have accomplished?

a)

20,000 J

b)

200 J

c)

2,000 J

d)

20 J

12.

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

a)

272 m

b)

17 m

c)

4.05 m

d)

272 cm

13.

When a battery is used to power a motor, the chemical energy store of the battery is transferred to the kinetic store of the motor by

a)

Work done

b)

Electric current

c)

Waves

d)

Heating

14.

Energy is transferred from the kinetic store of a singer's vocal cords to the kinetic store of your eardrums by

a)

Work done

b)

Electric current

c)

Heating

d)

Radiation

15.

A battery is connected to a motor that lifts a mass. The chemical energy store of the battery is transferred by ______ ______ to the kinetic energy store of the motor, which is transferred by ______ ______ to the gravitational and kinetic stores of the mass.

a)

electric current, work done

b)

heating, radiation

c)

electric current, heating

d)

radiation, work done

Energy Stores End of Topic Quiz

Total questions: 15

Worksheet time: 14mins

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