WorksheetsNGSS Physics IS3T3: Conservation of Mechanical Energy
Total questions: 31
Worksheet time: 30mins
Name
Class
Date
1.
You serve a volleyball with a mass of 2 kg. The ball leaves your hand with a speed of 30 m/s. What is the KE of the ball?
a)
900 J
b)
1800 J
c)
60 J
d)
30 J
2.
There is a bell at the top of a tower that is 45 m high. The bell weighs 100 kg. What is the potential energy of the bell?
a)
980 J
b)
441 J
c)
4,500 J
d)
44,100 J
3.
A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. What is the KE of the car?
a)
22,400 J
b)
44,800 J
c)
896,000 J
d)
1,792,000 J
4.
An 2 kg apple is hanging in a tree, 10 ft off the ground. What is the gravitational potential energy of the apple?
a)
19.6 J
b)
20 J
c)
98 J
d)
196 J
5.
Which of the following has the GREATEST IMPACT on the kinetic energy of an object?
a)
Mass
b)
Velocity
c)
Height
d)
The acceleration due to gravity
6.
The acceleration of an object due to gravity on Earth is...
a)
8.9 m/s2
b)
9.8 m/s2
c)
It depends on the mass of an object
d)
Equal to its kinetic energy
7.
A skydiver jumps from a plane and is halfway through her descent. At this point in time she has...
a)
Kinetic Energy
b)
Gravitational Potential Energy
c)
Both Kinetic and Gravitational Potential Energy
d)
She has no energy
8.
Which of the following has the greatest amount of gravitational potential energy?
a)
A 20 kg projector suspended 10 m in the air
b)
A 100 kg wrecking ball suspended 10 m in the air
c)
A 5 kg basketball suspended 10 m in the air
d)
They all have the same GPE because they are all 10 m in the air
9.
Which of the following affects the gravitational potential energy of an object?
a)
The mass of the object
b)
The height of the object
c)
The velocity of the object
d)
Both the mass and height of the object
10.
Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving 30 meters per second. What is the kinetic energy of the soccer ball?
a)
567 J
b)
900 J
c)
945 J
d)
30 J
11.
If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?
a)
5.4 J
b)
1.8 J
c)
3 J
d)
6 J
12.
Ty lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?
a)
12,789 Joules
b)
24,500 Joules
c)
4,500 Joules
13.
Energy due to motion= ____________ energy.
a)
Potential
b)
Elastic
c)
Kinetic
d)
Friction
14.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
15.
Energy can be transformed from one type of energy to another.
a)
True
b)
False
16.
A basketball is being held in the hands of a player.
a)
Potential
b)
Kinetic
17.
At which position would the roller coaster be converting kinetic energy to gravitational energy?
a)
A to B
b)
B to C
c)
C to D
d)
No such transformation.
18.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
19.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
20.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
21.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
22.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
23.
In order to INCREASE the potential energy of an object, you need to:
a)
put the object lower to the ground
b)
raise the object higher
24.
Energy is measured using which unit?
a)
Grams
b)
Meters
c)
Watts
d)
Joules
25.
____________ is the ability to cause change.
a)
Energy
b)
Force
c)
Friction
d)
Motion
26.
When a pendulum swings, at which point is potential energy at its greatest
a)
1
b)
2
c)
3
d)
4
27.
The equation for potential energy.
a)
PE = m + h
b)
PE = mh
c)
PE = mgh
d)
PE = gh
28.
The equation for kinetic energy.
a)
KE = mv2
b)
KE = 1/2 mv2
c)
KE = mv
d)
KE = 1/2 mv
29.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
30.
At which position does the child on the swing have the most gravitational potential energy?
a)
W
b)
X
c)
Y
d)
Z
31.
Units of force are...
a)
Newtons
b)
Grams
c)
Joules
d)
Meters
100 %
