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Worksheetsgravitional potential and kinetic energy
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
The SI unit in which kinetic energy is measured is
a)
Newton
b)
Kilogram
c)
Joules
d)
Metres per second
2.
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
3.
A golf pro swings his driver which weighs 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.
a)
2700 J
b)
16.9 J
c)
1350 J
d)
45 J
4.
An explosion of gas from a Hawaiian volcano blows a rock into the sky. the rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s
a)
200Kg
b)
20,000Kg
c)
10Kg
d)
200Kg
5.
Elastic energy gains potential energy when compressed or stretched.
a)
True
b)
False
6.
What equation is used to calculate elastic potential energy?
a)
Ep = m g h
b)
Ep = 1/2 k x2
c)
Ep = F / E d
7.
Leo (70 Kg) stretches the trampoline mat by 37 cm. Calculate the elastic potential energy he puts into the trampoline mat.
a)
4.79 J
b)
126.9 J
c)
47.9 J
d)
12.76. J
8.
Gravitational potential energy is affected by the position of the object. For example how high above the ground an object is would increase its potential energy.
a)
True
b)
False
9.
A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?
a)
43982.4 J
b)
63982.3 J
c)
43962.4 J
d)
83942.4 J
10.
What equation is used to calculate elastic potential energy?
a)
Ep = m g h
b)
Ep = 1/2 k x2
c)
Ep = F / E d
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