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4th grade chapter 8
Energy and Heat
Term | Definition |
---|---|
sound | energy in the form of vibrations passing through matter |
energy | the ability to cause motion or create change |
frequency | number of waves that pass a point in a certain amount of time |
kinetic energy | energy of motion |
wavelength | distance between a point in one wave with a similar point on the next wave |
potential energy | energy that is stored in an object |
conduction | the transfer of heat that occurs when one thing touches another |
refraction | the bending of light when it passes into a new medium |
pitch | how high or low a sound is |
convection | the travel of thermal energy as it moves |
absorption | occurs when an object takes in light waves |
volume | a measure of how strong a sound seems to be |
radiation | energy that is sent out in waves |
reflection | occurs when light waves bounce off a surface |
amplitude | the height of a wave measured from its midline |