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Energy Conservation

Total questions: 15

Worksheet time: 17mins

Name
Class
Date
1.
Which type of energy increases when you compress a spring?
a)
elastic potential energy
b)
kinetic energy
c)
radiant energy
d)
sound energy
2.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

3.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

4.

Kinetic energy is...

a)

energy carried in ultraviolet waves

b)

energy stored in food

c)

energy in motion

d)

energy from splitting an atom

5.

The mathematical formula to find the amount of kinetic energy is....

a)

mass x speed2 x 12mass\ x\ speed^2\ x\ \frac{\text{1}}{\text{2}}

b)

mass x speed ÷ 2mass\ x\ speed\ \div\ 2

c)

2 x mass x speed22\ x\ mass\ x\ speed^2

d)

2 x mass x speed2\ x\ mass\ x\ speed

6.

Kinetic energy is measured in

a)

Newtons (N)

b)

Joules (J)

c)

Kilograms (kg)

d)

miles per hour (mph)

7.
What is the unit used to measure work?
a)
Joule
b)
Watt
c)
Newton
d)
Pascal
8.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
9.
If W=Fd
Then how much work is done if it takes 20N to move a box 10 meters
a)
0
b)
2
c)
20
d)
200
10.
When work is done, there is always a(n) _______.
a)
constant rate
b)
single movement involved
c)
transfer of energy
d)
increase in the mechanical advantage
11.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
12.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
13.

In diagram 2, if the mass of the car is 600 kg, what is the change in potential energy from point A to point B?

a)

411,600 J

b)

294,000

c)

176,400 J

d)

117,600 J

14.

1. A ball has a 17 J of kinetic energy and its mechanical energy is 25 J. If the ball has a mass of 3.2 kg, what is its height above the ground?

a)

0.26 m

b)

0.52 m

c)

5.2 m

d)

25 m

15.
When something is dropped, what type of energy transfer takes place?
a)
Kinetic -> Potential
b)
Gravitational Potential -> Kinetic -> Sound
c)
Electrical -> Chemical
d)
Heat -> Nuclear