Vocab 1
The energy due to motion
What is kinetic energy
A drum vibrating is an example of
Sound energy
Describe the energy transformation when sharpening a pencil.
Electrical energy to mechanical and thermal energy
Stored energy is named
What is potential energy
A radio transfers radiant energy to
What is sound energy
Energy that is carried by vibrations
What is sound energy
A pendulum shows what 2 types of energy?
Kinetic and potential (mechanical)
Electrical energy to thermal energy
Chemical energy
Name the three types of potential energy.
Energy that moves from a warm object to a cold one
Moving electrons through electric currents is
Electric energy
Using gasoline transfers _________ energy into ________ energy.
chemical; thermal
What is another name for radiant energy?
What is light energy
A __________ can be added to one object in contact with another object to reduce _________, resulting in less thermal energy transformed.
lubricant, friction
A force that occurs when two moving objects touch
What is friction
When bonds in food are broken by digestion
Chemical energy
Photosynthesis transforms sunlight into ________ energy.
What is chemical
Explain the law of conservation of energy.
The law states that energy cannot be created or destroyed, it transforms.
Describe how a pole vaulter uses GPE.
The pole vaulter uses kinetic energy to apply elastic potential energy to the pole. As the pole compresses, it stores energy. When the pole straightens back out, the elastic potential energy is released. sending the vaulter over the bar.
Energy that is carried by electromagnetic waves
What is radiant energy
Getting an x-ray on a broken bone is
Radiant energy
Describe the energy transformation during the creation of nuclear energy. (3 phases)
Nuclear energy to thermal energy to electric energy
This ancient Greek philosopher who incorrectly hypothesized that objects with more mass would fall to the Earth at greater speeds than objects with less mass
Aristotle