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Energy and Work

Total questions: 25

Worksheet time: 26mins

Name
Class
Date
1.
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
2.
 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
3.
When energy moves from one form to another it is said to be _________________
a)
Transformed
b)
Eliminated
c)
Lost.
d)
Created 
4.
The energy associated with motion is called
a)
Kinetic energy
b)
Elastic potential energy
c)
Gravitational potential energy
d)
Nuclear energy
5.
An example of something that stores chemical energy is
a)
lightning
b)
a microwave
c)
a match
6.
Light is an example of _________
a)
thermal energy
b)
radiant energy
c)
mechanical energy
d)
nuclear energy
7.
When you rub your hands together on a cold day, you use friction to convert
a)
Mechanical energy into thermal energy
b)
Thermal energy into nuclear energy
c)
Nuclear energy into electrical energy.
d)
Electrical energy into radiant energy
8.
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
9.
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
10.
Energy of a rock perched on a cliff is an example of...
a)
gravitational
b)
elastic
c)
chemical
d)
kinetic
11.
Energy from a compressed spring would be an example of...
a)
kinetic
b)
elastic
c)
gravitational
d)
chemical
12.
How do you calculate power?
a)
P = W/t
b)
P = E/t
c)
P = w * t
d)
P = bbq/chicken
13.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
14.
The SI unit of work is?
a)
Joules
b)
Watts
c)
Newtons
d)
meters
15.
The SI unit for power is...?
a)
Watts
b)
Joules
c)
Newtons
d)
Meters
16.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
17.
What is the energy of position or shape that depends on weight and height, also called stored energy?
a)
Energy
b)
Kinetic energy
c)
Potential energy
d)
Sound energy
18.
1  When a ball accelerates down a slope, it _________________
a)
gains both kinetic energy and potential energy
b)
gains kinetic energy but loses potential energy
c)
gains potential energy but loses kinetic energy
d)
neither gains nor loses both kinetic energy and potential energy     
19.
What is mass?
a)
It is the amount of matter in a body
b)
It is the amount of force in a body
c)
it is the gravitational force acting on a body
d)
it is the kinetic force acting on a body
20.
Which of the following about mass and weight is true?
a)
weight is independent of gravity while mass is dependent of gravity
b)
mass is independent of gravity while weight is dependent of gravity
c)
Both are independent of gravity
d)
Both are dependent of gravity
21.

A block starts at rest at point P at the top of a ramp which is height h above the ground. The block slides down one side and up the other, stopping at a point less than h above the ground.

a)

The block did not go as high on the other side because gravity pulls down.

b)

The block did not go as high on the other side because potential energy always has to decrease.

c)

The block did not go as high on the other side because work from friction made the mechanical energy less.

d)

The situation as described is impossible to happen.

22.

If there is no friction on this track, at which point would the coaster have the most kinetic energy?

a)

A

b)

B

c)

C

d)

D

23.

Where is the roller coaster gaining potential energy?

a)

A to B

b)

B to C

c)

C to D

d)

The roller coaster is always losing potential energy

24.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
25.

Energy Efficiency is calculated by useful energy (Energy Out) divided by energy consumed (Energy In) , expressed as a percentage

a)

False

b)

True

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