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Review
Physics ALL units review
Definition | |
---|---|
Velocity | speed of something in a given direction |
Acceleration | capacity to gain speed within a short time |
Normal force | what counteracts gravity when an object is sitting on a surface |
Gravitational force | what attracts all objects with mass together |
Force | a push or a pull |
Kinetic energy | energy exerted from applied motion |
Potential energy | stored energy |
Joules | measure of work, energy |
Kg | measure of mass |
M/s | measure of velocity |
Mechanical energy | measure of all energy in a system |
Crest | highest point of a wave |
Trough | bottom of a wave |
Wavelength | length of one wave cycle |
Amplitude | maximum size of the wave |
Equilibrium | resting point of a wave |
Frequency | number of waves that pass every second |
Relationship between force and acceleration | direct |
Elastic collision | collision where it bounces off |
Inelastic collision | collision where it sticks together |