Wave Speed
Wave speed is given in meters per second (the number of waves that pass per second). Wavelength is measured in meters and frequency is measured in hertz (Hz), or number of waves per second.
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Force on a Spring
When a force acts on a spring it is stretched or compressed, its length will changes by an amount e from its original length.
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Force, Mass and Acceleration
An object of constant mass accelerates in proportion to the force applied.
Kinetic Energy
In physics, the kinetic energy (KE) of an object is the energy that it has due to its motion. It is defined as the work needed for an object of a known mass to accelerate to a given velocity.
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Specific Heat Capacity
Specific heat capacity is how much heat energy is required to raise 1 kg of a substance by 1 °C.
Power
The quantity power is the rate at which work is done. The quicker work is done the greater the power.
Charge
The size of the current is the rate of flow of charge. Electrons are negatively charged particles which transfer energy through wires as electricity.
Resistance
Resistance is an electrical quantity that measures how a device or material reduces the electrical current flow through it.
Electrical Power
The power of an appliance is the energy that is transferred per second. Electric power is the rate, per unit time at which electrical energy is transferred by an electric circuit.
Density
Density is a measure of how compact the particles are in a substance. Density is defined as the mass per unit volume.
