Gas Pressure is created when gas particles collide with the walls of their container. The more often the particles collide with the walls, and the faster …

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 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 …

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 …

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 …

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 …

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 …

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 …

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 …

The power of an appliance is the energy that is transferred per second. Electric power is the rate, per unit time at which electrical …

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 …

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 …

The radioactivity of a sample decreases over time. Half life is a measurement of this decrease.
What is Half life?
The radioactivity of a sample decreases …

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 …

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 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 …

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 …

The period of a wave is the time it takes to complete one cycle. The unit for a wave period is seconds, and it is inversely proportional …

The magnification can be calculated if you know the actual size of the object and its image size.
Demo
In this tutorial you will learn how to calculate …