WorksheetsUnit 8 Recap Energy
Total questions: 20
Worksheet time: 44mins
The ability to cause a change in an object's structure or motion.
(a)
What type of energy does the sun produce?
Nuclear energy
Kinetic energy
Mechanical energy
The type of energy found in oil:
Thermal
Mechanical
Chemical
The motion of a car is an example of thermal energy.
True
False
These contain stored chemical energy that they convert to electrical energy or thermal energy.
Batteries
Oil
Human muscle
Electric wire
Energy can be ___________ or converted from one form to another. However, energy is neither __________ nor _________.
How is energy being transferred from a stove burner to a pan so food in the pan will cook?
(a)
Energy that comes from changes in the nucleus of an atom.
Potential energy
Mechanical energy
Nuclear energy
Chemical energy
Thermal energy is the ____________ energy due to random motion of the particles that make up an object.
Sound
Kinetic
Light
Potential
Is the energy produced by moving electrons
Potential energy
Thermal energy
Electrical energy
Sound
Mechanical energy is:
The law of conservation of energy states:
What has less thermal energy, a bathtub of 100°F water or a pond of 70°F water?
The pond
The bathtub
They would have the same
The one with the higher temperature
Into what energy a solar panel transforms electromagnetic energy or light?
Mechanical
Electrical
Thermal
Nuclear
What happens to the energy in spoon placed into a hot mug of cocoa?
The heat from the hot cocoa will move into the spoon until it is the same temperature as the cocoa.
The spoon will eventually be hotter than the cocoa.
The spoon will cool the hot cocoa.
As an arrow falls back to the ground, what happens to its energy?
The potential energy increases and kinetic energy decreases
The mechanical energy of the arrow increases
The potential energy decreases as the kinetic energy increases
Its mechanical energy decreases
On a roller coaster, where would you have the most potential energy?
At the bottom of the second hill
At the top of the second hill
At the top of the ramp
At the bottom of the ramp
What type of energy transformations take place when a gas powered car is running?
Chemical energy is changed to electrical and then to thermal energy
Electrical energy is transformed to mechanical.
Chemical energy is transformed to thermal, then into mechanical.
Electrical energy is transformed to nuclear energy
How much work and potential energy will the javelin have if it was thrown with a force of 20 N, it has a speed of 1.32 m/s, it has travelled a distance of 3.4 m and it has a mass of 80 gr?
How much work did the hitter do if he hit the ball with a force of 300 N and it travelled 5 m?
