WorksheetsEnergy Unit Test Review
Total questions: 50
Worksheet time: 41mins
What is energy?
moving energy
stored energy
renewable energy
The ability to do work.
What is potential energy?
moving energy
stored energy
renewable energy
non renewable energy
What is kinetic energy?
moving energy
potential energy
stored energy
renewable energy
Which statement best defines Mechanical Energy?
Energy produced by a machine or moving part.
Energy that is produced by an electrical current in a circuit.
Energy from the sun.
Energy that travels in waves due to vibrations.
The energy associated with the motion and position of an object is
A. Electrical Energy
B. Mechanical Energy
C. Light Energy
D. Sound Energy
What are the units for energy?
Watts
Joules
Newtons
meters
What has to be true about an object for it to have kinetic energy?
it must be moving
it must be elevated
it must be experiencing a net force
it must be accelerating
Does your desk have kinetic energy right now? Explain and justify your answer.
yes because it is sliding across the room right now
no because it is not moving
yes because it has someone sitting in it
no because it is here on earth
A slingshot that has been pulled back, but has not been let go.
Kinetic
Potential
A bobsled is moving at its greatest speed around the final turn.
Kinetic
Potential
A grasshopper reaches the highest point in its jump from one plant to another.
Kinetic
Potential
A girl is swinging and she is at her highest point of the swing.
Kinetic
Potential
A cliff diver is just about to jump off an 18 m high cliff.
Kinetic
Potential
When a roller coaster is at the bottom of a hill it has
high potential energy
high kinetic energy
low kinetic energy
equal amounts of kinetic and potential energy
Which passenger has the most potential energy?
A
B
C
D
The picture is an example of _____ .
The picture is demonstrating an example of ______ .
Which number shows kinetic energy at its maximum?
three
two
four
five
Which letter shows where is potential energy stored or at its maximum point?
Y
W
X
Z
Which letter shows where kinetic energy is at is highest point?
X
Y
W
Z
Where is kinetic energy at its minimum?
Z
W
X
Y
Where is potential energy at its minimum?
W
X
Y
Z
What numbers show potential energy on this pendulum?
1 and 5
1 and 4
2 and 3
3 and 4
Which point has the most potential energy?
G
F
B
A
What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 24 m/s?
(a)
What is the Kinetic Energy of a 478 kg object that is moving with a speed of 15 m/s?
(a)
What is the Kinetic Energy of a 100 kg object that is moving with a speed of 12.5 m/s?
(a)
Which graph correctly shows the relationship between KE and velocity? Remember that KE=1/2mv^2.
A- Direct Relationship
B- Exponential Relationship
C- Approaching Max Relationship
D Exponential Decay
A golf pro swings her driver which weighs 0.15Kg at a velocity of 60 m/s. The KE of the golf club is (a) J. Type your answer
A 3kg cat is running 6m/s. A 5kg dog is chasing the cat at 6m/s. Which one has more kinetic energy?
(a)
Mass and speed have a (a) proportional relationship with kinetic energy.
KE is directly proportional to the square of the object's speed, so it (a) .
If the speed is doubling, what happens to the kinetic energy?
it doubles
it stays the same
it triples
it quadruples
If the mass is doubling, what happens to the kinetic energy?
it doubles
it stays the same
it triples
it quadruples
An 2 kg apple is hanging in a tree, 3 m off the ground. What is the gravitational potential energy (gravity = 9.8 m/s2) of the apple?
(a)
Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.
height and mass
friction and movement
mass and movement
height and friction
Which of the following is the correct equation for calculating an object's gravitational potential energy?
PE = mgh
PE = mg / h
PE = mg + h
PE = gh
There is a clock at the top of a tower that is 45m high. The clock weighs 20 kg. Calculate its potential energy. Remember g=9.8 m/s
(a)
The world record for pole vaulting is 6.15 m and the vaulter's mass is 82 kg. Calculate the amount of potential energy. Gravity = 9.8
(a)
Potential energy is...
energy in motion
stored energy
What two factors affect an object's potential energy?
area and volume
area and height
mass and height
mass and velocity
Type of potential energy stored in magnetic fields.
magnetic energy
electric energy
chemical energy
elastic energy
Type of potential energy where energy is stored in the stretch of an object.
magnetic energy
electric energy
chemical energy
elastic energy
Type of potential energy stored in positive and negative electrical charges.
magnetic energy
electric energy
chemical energy
elastic energy
Type of potential energy stored in the bonds between atoms in molecules.
magnetic energy
electric energy
chemical energy
elastic energy
Type of potential energy stored in the height of the object.
gravitational energy
electric energy
chemical energy
elastic energy
