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Y10 Physics Energy

Total questions: 16

Worksheet time: 9mins

Name
Class
Date
1.

Which one of the following is true about energy?

a)

Energy is destroyed due to frictional forces

b)

Energy is the measure of the ability to do work

c)

More energy is available when there is more power

d)

Energy and power measure the same thing

2.

Which of the following shows the formula for efficiency in %?

a)

Efficiency = total energy / useful energy x 100

b)

Efficiency = input energy / output energy

c)

Efficiency = total energy / output energy x 100

d)

Efficiency = useful energy / total energy x 100

3.

What energy transformations are happening when a cat falls out of a tree and hits the ground?

a)

Gravitational potential -> kinetic energy -> sound / heat / kinetic

b)

Kinetic -> gravitational > sound / heat / kinetic

c)

Gravitational -> spring

d)

Kinetic -> heat/sound

4.
Niagara Falls is a good example of
a)
Kinetic energy being transformed into potential energy
b)
Potential energy being transformed into kinetic energy
c)
Energy being created
d)
Energy being destroyed
5.
 The law of conservation of energy states that when one form of energy is converted into another,
a)
Energy is destroyed in the process
b)
Energy is created in the process
c)
No energy is destroyed in the process
d)
Energy is lost in the process
6.
Which energy-conversion process occurs whenever coal is burned at a power station?
a)
chemical to nuclear
b)
chemical to sound
c)
chemical to electrical
d)
mechanical to electrical
7.
When energy moves from one form to another it is said to be _________________
a)
Transformed
b)
Eliminated
c)
Lost.
d)
Created 
8.
The energy associated with motion is called
a)
Kinetic energy
b)
Elastic potential energy
c)
Gravitational potential energy
d)
Nuclear energy
9.
An example of something that stores chemical energy is
a)
lightning
b)
a microwave
c)
a match
10.
Which of the following has kinetic energy?
a)
a rock poised for a fall
b)
an archer's bow that is drawn back
c)
a rolling bowling ball
11.
When riding a roller coaster, you go up and down many hills. When do you have the maximum potential energy? 
a)
at the top of the hill
b)
as you go down each hill
c)
at the bottom of the each hill
d)
as you go up each hill
12.
Potential energy that depends on height is called
a)
Kinetic energy
b)
Elastic potential energy
c)
Nuclear energy
d)
Gravitational potential energy
13.
The energy in a battery is _______ energy.
a)
kinetic
b)
potential
c)
mechanical
d)
nuclear
14.
What best describes the energy conversion that takes place in a microwave oven?
a)
electrical to light to thermal
b)
chemical to thermal to light
c)
electrical to thermal to sound
d)
nuclear to thermal to chemical
15.
Which of the following mechanical energy to electrical energy?
a)
solar calculator
b)
windmill
c)
glow stick
d)
firecracker
16.

The roller coaster cart has the most kinetic energy at position-

a)

W

b)

X

c)

Y

d)

Z