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Energy is the ability to ________________.
do work
run
Energy transfer is...
energy moving from one place to another
the ability to do work
What are the two categories of energy?
potential and kinetic
heat and electrical
The potential energy an object has due to its height above the earth is...
mechanical energy
gravitational energy
The energy of movement is called
mechanical energy
electrical energy
Stored energy is called...
kinetic energy
potential energy
Thermal energy is created by...
radiation or electromagnetic waves.
the movement of molecules in an object.
Sound is energy produced or made by...
electromagnetic waves
vibrations
Thermal energy depends on the temperature, state, and amount of a substance.
False
True
The change of one substance into another kind (like iron into rust) is...
thermal energy
a chemical reaction
Transfer of heat from one place to another by the movement of a fluid or liquid is...
convection
conduction
The transfer of heat by objects touching one another is...
convection
conduction
The force that opposes (slows or stops) motion is called...
gravity
friction
What is an example of friction?
tires rubbing on the road
a shock you get when you touch something electical
Gold, silver, and iron are all examples of...
insulators
conductors
Rubber, wood, and styrofoam are...
insulators
conductors
