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WorksheetsEnergy and Conversion of Energy
Total questions: 70
Worksheet time: 1hrs 18mins
Which term describes potential energy?
stored energy
kinetic energy
future energy
invisible energy
A rock on top of a hill has energy due to its position. What is this energy called?
chemical energy
kinetic energy
gravitational potential energy
elastic potential energy
What is the mechanical energy of an object?
the sum of all types of kinetic energy
the sum of all types of potential energy
the sum of all kinetic energy and all potential energy
the difference between the kinetic energy and the potential energy
What is the Law of Conservation of Energy?
The total amount of energy on Earth is constant.
Energy can only be created when a force acts on an object.
Heating an object creates energy and cooling destroys energy.
Energy cannot be created or destroyed but it can be transformed.
Matt and Kim use bowling balls with different masses. If they both roll their bowling balls at exactly the same speed, which statement is true?
The bowling ball with less mass has more kinetic energy.
The bowling ball with more mass has more kinetic energy.
The kinetic energies of the two bowling balls are the same.
There is not enough information to compare the kinetic energies.
Energy is the ability to cause what?
change
mass
force
speed
Which of the following examples of a cheetah has the most kinetic energy?
a cheetah that is resting
a cheetah that is running
a cheetah that is walking
a cheetah that is eating
Which of these is an example of kinetic energy?
wind blowing
water on a glass
a can of vegetables
the walls of a building
How does kinetic energy differ from potential energy?
Kinetic energy is energy of motion, but potential energy is stored.
Kinetic energy can be measured, but potential energy cannot be measured.
Kinetic energy is in every object, but some objects do not have potential energy.
Kinetic energy is a form of mechanical energy, but potential energy is not mechanical energy.
When the slingshot is held in position as in the diagram, what kind of energy is present?
kinetic energy
mechanical energy
potential energy
light energy
A ball is sitting at the top of a ramp. As the ball rolls down the ramp, the potential energy of the ball decreases. What happens to the potential energy as the ball moves?
It is lost as gravitational energy.
It is converted to kinetic energy.
It is destroyed as the ball moves.
It is used to make the ball slow down.
Mechanical energy is the sum of two types of energy - kinetic energy and potential energy of position. Which of the following is an example of an object that has kinetic energy?
a snail crawling across a leaf
a computer monitor sitting on a desk
a tightly wound up spring in a windup toy
a roller coaster car just before it goes downhill
What does speed measure?
How fast an object is going.
How far an object has traveled.
The rate at which an object slows down.
The rate at which an object speeds up.
When does an object have no kinetic energy?
When it's at rest.
When it's moving very slowly.
When the only force acting on it is gravity.
When it has no electrical charge.
Four cars are positioned at the top of a hill. Which car has the most gravitational potential energy?
Car A
Car B
Car C
Car D
The amount of kinetic energy an object has depends on its:
mass and volume
volume and friction
mass and speed
speed and density
Emily's friend Sophia tells her that if she hangs a painting on her wall it will have greater kinetic energy than if it is sitting on the floor. Is this accurate?
No, the energy will not change if it's hung up.
Yes, Sophia is correct. The information is accurate.
No, hanging the painting increases the potential energy.
No, the painting cannot have kinetic energy.
What is the energy conversion when you plug in a stereo and listen to music?
electrical to motion
chemical to heat
electrical to sound
potential to sound
What is the energy conversion when you burn wood for a fire?
electrical to thermal
light to motion
chemical to thermal
chemical to electrical
What is the energy conversion when you put batteries in a flashlight to make it turn on?
chemical to light
light to motion
chemical to thermal
nuclear to light
What is the energy conversion when you plug in a charger to charge a battery?
electrical to light
kinetic to potential
thermal to chemical
electrical to chemical
What is the energy conversion when you plug in a fan?
potential to motion
potential to heat
heat to electrical
electrical to motion
What is the energy conversion when you burn charcoal to cook food on a grill?
thermal to chemical
light to kinetic
chemical to thermal
chemical to nuclear
What is the energy conversion when you use gasoline to make a car move?
chemical to motion
chemical to potential
potential to light
nuclear to motion
Steam is an example of _____________energy.
light
thermal
sound
electrical
A windmill is an example of ________________energy.
thermal
mechanical
light
electrical
Which are types of energy (select all that apply)
Heat
Light
Sound
Movement
What is the energy conversion when you plug in a fan?
thermal to sound
sound to thermal
thermal to electrical
electrical to motion
At what position does the cyclist have the least gravitational potential energy?
At what position does the cyclist have the least gravitational potential energy?
At what point does the basketball have the greatest amount of gravitational potential energy?
A
B
C
D
E
At what point does the basketball have the least amount of gravitational potential energy?
A
B
C
D
E
Which position has the most potential energy?
A
B
C
E
The picture showing the energy conversion
Electrical → light
is:
What is the energy conversion when water moves over a dam to power a city's energy grid?
electrical to light
mechanical (motion) to electrical
solar (light) to electrical
mechanical (motion) to light
Energy of motion is also called ______________ energy.
Kinetic
Chemical
Thermal
Electrical
The object shown is responsible for which conversion
electrical → light only
chemical → heat only
chemical → heat & light
electrical → heat & light
The picture showing the energy conversion
Chemical → light & heat
is:
What is the energy conversion when you put batteries in a flashlight to make it turn on?
chemical to light
light to kinetic
chemical to thermal
nuclear to light
What is the energy conversion when you plug in a charger to charge a battery?
electrical to light
kinetic to potential
thermal to chemical
electrical to chemical
What is the energy conversion when photosynthesis takes place as the sun makes a plant grow?
electrical to chemical
potential to nuclear
chemical to potential
light to chemical
When a frog eats an insect and then hops off, which energy conversions are taking place
chemical to mechanical
mechanical to chemical
chemical to electromagnetic
electromagnetic to chemical
What is it called when energy is changed into another form?
production
loss
conversion
The picture showing the energy conversion
Chemical → kinetic
is:
When a roller coaster is at the top of a hill it has
high potential energy
high kinetic energy
low potential energy
equal amounts of kinetic and potential energy
I am holding a balloon that is full of air, the balloon has
kinetic energy
potential energy
Which is the best example that something has kinetic energy?
a car parked on a steep hill
a tennis ball rolling across the court
a picture hanging on the wall
a piece of coal before it's burned
Conservation of energy means that
energy can be created but not destroyed
energy can be destroyed but not created
energy can both be created and destroyed
energy can neither be created nor destroyed
What energy conversions take place when you vigorously rub your hands together?
friction => heat
chemical => thermal
mechanical => thermal
kinetic => chemical
Which of the following is the correct chain of energy that takes place when a flashlight is turned on?
chemical => electrical => light
mechanical => electrical => light
nuclear => chemical => light
thermal => chemical => mechanical
What type of energy is food energy stored in your muscles?
mechanical
nuclear
thermal
chemical
Muscles operate to push the pedals on a bicycle causing the wheels to turn. What type of energy being represented?
mechanical
physical
thermal
chemical
Which type of potential energy is stored in a gasoline?
nuclear
mechanical
chemical
thermal
Any form of energy can be converted to any other form of energy.
True
False
