Fast as lightening
a measure of the change in velocity of a moving object.
What is acceleration?
energy that is stored in a person or object
What is potential energy?
*1000 bonus points* the average kinetic energy of the particles of matter
What is temperature?
substance with a low boiling point that is used to transfer thermal energy in a cooling system such as a refrigerator.
What is a refrigerant?
the portion of light in the electromagnetic spectrum that is visible to humans.
What is visible light?
a measure of both speed and direction of motion
What is velocity?
the energy of movement. It is found in objects that are moving or have the potential to move.
What is mechanical energy?
the transfer of thermal energy between substances
What is heat?
a force that resists the motion of objects or surfaces
What is friction?
production of visible light by an object that is so hot it glows.
What is production incandescence?
*Double Points* the SI unit is m/s2
What is the SI unit for acceleration?
energy that is stored in the bonds between the atoms of compounds. If the bonds are broken, the energy is released and can be converted to other forms of energy.
What is chemical energy?
a measure of how much energy it takes to raise the temperature of a substance
What is specific heat?
a complex machine that burns fuel to produce thermal energy and then uses the thermal energy to do work
What is a combustion engine?
process in which light passes through matter
What is transmission?
how fast or slow something moves.
What is speed?
the energy of moving atoms of matter
What is thermal energy?
the total energy of a substance due to the movement or vibrations of particles.
What is thermal energy?
The amount of space between two points
What is distance?
matter that does not allow visible light to pass through it because it reflects or absorbs all of the light
What is opaque?
The SI unit is (J)
What is the SI unit for joule?
*Triple Points* The SI unit is (GPE) = weight × height
What is gravitational potential energy?
flow of particles in a fluid that occurs because of differences in temperature and density.
What is convection current?
part of a heating system that monitors temperature and controls when the boiler or furnace turns on or off to keep the temperature at a set point.
What is a thermostat?
*Triple Points* the angle at which a ray of light is incident on a surface equals the angle at which it is reflected.
What is the law of reflection?