the capture of light energy by a substance, when the light is neither reflected nor refracted
100
what is convection
motion of a heat material due to gravity and differences in density
100
what is mechanical energy
energy that can move objects through contact
100
what type of energy is often transported through metal wire
Electrical and heat energy
100
when the metal blocks have reached the same temperature about what temperature will that be?
25 degrees
200
what is chemical energy
energy contained in the chemical bonds between substances
200
what is electrical energy
the flow of electrons among atoms in a substance that conducts electricity
200
what is medium
the substance through which a wave travels
200
What are three types of solar energy
Ultraviolet radiation, infrared radiation and electricity
200
which form of energy requires a medium through which to travel
sound
300
what is a circuit
a system of electrical parts that provides a path for an electrical current
300
what is energy
the ability to generate a force that does work
300
what is nonrenewable source
a resource that humans use more quickly than nature can replace
300
What transformations occur when a car engine burns gasoline
Chemical energy is in the gasoline which converts to mechanical energy, heat energy, through the exhaust pipe
300
a purple object absorbs all color of light except for what color
purple
400
what is a conduction
a form of transfer in which heat moves through a substance without the substance itself moving
400
what is heat energy
the form of energy arising from the motion of all the particles in a system
400
what is nuclear energy
energy that comes from the nucleus of an atom while it splits apart or joins together with other nuclei
400
a feather and a bowling ball dropped on the moon from the same height would it hit the ground at the same time. Which object would have more kinetic energy
the bowling ball because it has more kinetic energy
400
what heat has transferred has occurred
convection
500
what is conservation of energy
physical law stating that energy cannot be created or destroyed
500
what is kinetic energy
energy that arises from an objects motion
500
what is potential energy
energy that results from an object's position
500
why do you think potential energy of the car parked on a hi.l is not completely changed into kinetic energy when the car rolls down the hill
some of the kinetic energy is converted to heat energy from fricton
500
when you go outside on a sunny day, you might feel heat from the Sun on your skin. what type of solar energy is this