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What is Energy?
Forms of Energy
Energy Transformations
Energy and Fossil Fuels
True or False
100
The ability to do work is called
Energy
100
The total potential and kinetic energy of particles in an object is called
Thermal energy
100
When you rub your hands together on a cold day, what type of transformation takes place
Mechanical energy to thermal energy
100
Which is an example of a fossil fuel: wood, petroleum, the sun, or water
Petroleum
100
The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf
False; gravitational potential
200
Energy is measured in units called
Joules
200
Which of the following stores chemical energy: lighning, a microwave, a match, or a light
A match
200
The scientist who suggested that energy can be created is
Einstein
200
Fossil fuels contain energy that originally came from
The sun
200
A compressed spring has elastic potential energy
True
300
Energy associated with motion is called
Kinetic energy
300
Energy stored in the nucleus of an atom is called
Nuclear energy
300
The law of conservation of energy states that when one form of energy is converted to another......
No energy is lost
300
The process of burning fuel is called
Combustion
300
A ball thrown into the air has its greatest kinetic energy as it reaches the highest point in its path
False; potential
400
Unlike kinetic energy, potential energy is
Stored
400
Visible light is an example of
Electromagnetic energy
400
A change from one form of energy to another is called an
Energy transformation
400
When you burn fossil fuels, chemical energy is converted to
Thermal energy
400
During combustion, a fuels electromagnetic energy is converted into thermal energy
False; chemical
500
Potential energy that depends on height is called
Gravitational potential energy
500
Energy that travels in waves is called
Electromagnetic energy
500
What type of transformation takes place in an electric motor?
Electrical energy to mechanical energy
500
Fossil fuels contain what kind of energy, stored from millions of years ago
Chemical energy
500
If you add an objects potential and kinetic energies, you get its mechanical energy
True