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conservation of energy

Total questions: 16

Worksheet time: 17mins

Name
Class
Date
1.

Which letter shows the ball when it has NO potential energy?

a)

B

b)

C

c)

D

d)

E

e)

F

2.

Which letter shows the ball when it has THE MOST kinetic energy?

a)

B

b)

C

c)

D

d)

E

e)

F

3.

Which letter shows the ball when it has THE LEAST kinetic energy?

a)

A

b)

B

c)

C

d)

F

e)

G

4.

Which letter shows the ball when it is moving the fastest?

a)

B

b)

C

c)

D

d)

E

e)

F

5.

Which letters shows the ball when it has BOTH kinetic and potential energy?

The ball starts and ends AT REST. List all that apply in alphabetic order!

(a)  

6.

The Law of Conservation of Energy states:

a)

Energy can created or destroyed but not transformed

b)

Energy cannot be created or destroyed, it can only transformed

c)

Energy can't be created, destroyed or transformed

d)

Energy cannot be created or destroyed.

7.
the equation for gravitational potential energy is 
a)
PEg = mgh
b)
PEg= 1/2kx2
c)
PEg= Fd
d)
PEg = 1/2mv2
8.

You drop a 5 kg ball from a height of 2 m. how much is the kinetic energy of the object just before it hits the ground

a)
10 J
b)
100 J
c)
7 J
d)
20 J
9.

A 20 kg box is lifted 6 m above the ground. How much PEg does it have?

a)

120 J

b)

200 J

c)

1200 J

d)

60 J

10.

A ball is elevated some distance off the ground. If it has a mass of 3 kg and a potential energy of 90 J, how high off the ground is the ball?

a)

2700 m

b)

27 m

c)

900 m

d)

3 m

11.

What happens to the PEg of a rock that sits on the edge of a cliff as it starts to fall?

a)

The rock loses PEg and gains KE.

b)

The rock loses KE and gains PEg.

c)

The rock retains all its PEg and gains KE

d)

The rock retains both PEg and KE

12.

What happens when the ball goes from the highest position to the lowest position

a)

PE and KE increases and decreases together

b)

Impossible to know without knowing the mass of the object

c)

the PE decreases while KE increases

13.

A 1.0 kg ball is stationary at the top of a hill that is 10.0 meters in height. The ball rolls all the way down the hill. What is its gravitational potential energy at the bottom of the hill?

a)

0 joules

b)

98 joules

c)

49 joules

d)

38 joules

14.

The Law of Conservation of Energy states:

a)

Energy can created or destroyed but not transformed

b)

Energy cannot be created or destroyed, it can only transformed

c)

Energy can't be created, destroyed or transformed

d)

Energy cannot be created or destroyed.

15.

Where does the pendulum have the same amount of kinetic energy and potential energy? (pick 2)

a)

A

b)

B

c)

C

d)

D

e)

E

16.

If a ball tossed into the air has a maximum gravitational potential energy of 5.75 joules, what is its maximum kinetic energy in the same toss?

a)

5.75 joules

b)

11.14 joules

c)

2.88 joules

d)

7.93 joules