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Absolute Zero Is the theoretical temperature at which atoms stop vibrating. All atoms have vibrational energy, even in solids, but if we cool them, they vibrate less.
Rate of change in velocity If a body increases its speed (the result of a force acting on it) then it is said to have positive acceleration.
A device for measuring a current An ammeter is always connected directly into a circuit in series with the components through which the current is flowing. A good ammeter will have virtually no resistance.
The unit for an electrical current amp or A. 1 amp is equal to a flow of 1 coulomb of charge per second. This translates to the formula, amps = coulombs ÷ seconds.
Maximum displacement that an oscillation or wave has from its rest position. A measure of the energy contained in the motion or wave, large amplitude sounds are louder; large amplitude light waves are brighter
Astronomical unit (AU) is defined as the average distance between the Earth and the Sun (approximately 148 million kilometers).
Layer of gases that envelops a planet, moon or other celestial body
The building blocks of matter Once thought to be indivisible particles*, atoms are now understood to consist of electrons*, protons* and neutrons*.
A group of electrical cells
Created by: zoeimogen