## Edexcel Combined – P6

When a force acts on a spring it is stretched or compressed, its length will changes by an amount e from its original length.
Demo
In …

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 …

Specific heat capacity is how much heat energy is required to raise 1 kg of a substance by 1 °C.
What is Specific heat capacity?
Specific heat …

The quantity power is the rate at which work is done. The quicker work is done the greater the power.
What is Power?
The quantity power is …

Stretching or squashing an object can transfer energy into its elastic potential energy store.
What is Elastic potential energy?
Stretching or squashing an object can transfer energy …

The size of the current is the rate of flow of charge. Electrons are negatively charged particles which transfer energy through wires as electricity.
What is …

Resistance is an electrical quantity that measures how a device or material reduces the electrical current flow through it.
What is Resistance?
Resistance is an electrical quantity …

Resistors in series and in parallel can change the total resistance in a circuit.
What is Resistance in series and parallel?
Resistors in series and in parallel …

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 …

Density is a measure of how compact the particles are in a substance. Density is defined as the mass per unit volume.
What is Density
Density is a …

Specific latent heat is the energy needed to change the state of a substance.
What is Specific latent heat?
Specific latent heat is the energy needed to …

Lifting an object in a gravitational field transfers energy into the objects gravitational energy store. Gravitational potential energy is the energy an object has due to its height …

The efficiency of a device is the proportion of input energy that is converted to useful energy.
What is Efficiency?
The efficiency of a device is the …

The potential difference between two points is the energy transferred per unit charge. An electrical circuit is an energy transformation device.
What is Energy transformed?
The potential …

The unit for work done is the joule (J), or Newton meter (N-m). One joule is equal to the amount of work that is done when 1 N of force moves an object …

A transformer is an piece of electrical apparatus which will increase or decrease the voltage in an alternating current. It can be designed to “step up” or …

A current-carrying wire or coil can exert a force on a permanent magnet. The force increases if the strength of the magnetic field and/or current increases. This is called …