Pressure in a Gas
Gas Pressure is created when gas particles collide with the walls of their container. The more often…
Wave Speed
Wave speed is given in meters per second (the number of waves that pass per second)….
Moments
Forces can cause an object to rotate and the turning effect of the force is called…
Force on a Spring
When a force acts on a spring it is stretched or compressed, its length will changes by…
Pressure
Pressure can be calculated if you know the force applied to or by an object and…
Force, Mass and Acceleration
An object of constant mass accelerates in proportion to the force applied. Demo In this tutorial you will learn…
Kinetic Energy
In physics, the kinetic energy (KE) of an object is the energy that it has due to its motion….
Specific Heat Capacity
Specific heat capacity is how much heat energy is required to raise 1 kg of…
Power
The quantity power is the rate at which work is done. The quicker work is…
Elastic Potential Energy
Stretching or squashing an object can transfer energy into its elastic potential energy store. What…
Charge
The size of the current is the rate of flow of charge. Electrons are negatively…
Resistance
Resistance is an electrical quantity that measures how a device or material reduces the electrical…
Electrical Power
The power of an appliance is the energy that is transferred per second. Electric power…
Density
Density is a measure of how compact the particles are in a substance. Density is defined…
Specific Latent Heat
Specific latent heat is the energy needed to change the state of a substance. What…
Half Life
The radioactivity of a sample decreases over time. Half life is a measurement of this…
Gravitational Potential Energy
Lifting an object in a gravitational field transfers energy into the objects gravitational energy store….
Efficiency
The efficiency of a device is the proportion of input energy that is converted to…
Energy Transformed
The potential difference between two points is the energy transferred per unit charge. An electrical…
Forces and Work Done
The unit for work done is the joule (J), or Newton meter (N-m). One joule is equal…
Momentum
All moving objects have momentum. Forces can cause changes in momentum. The total momentum in…
Transformers
A transformer is an piece of electrical apparatus which will increase or decrease the voltage in an…
The Motor Effect
A current-carrying wire or coil can exert a force on a permanent magnet. The force increases if the strength…
Uniform Acceleration
Uniform or constant acceleration is a type of motion in which the velocity of an object changes by…
Pressure in Fluids
Fluid pressure is exerted on the surface of an object in a liquid. This pressure causes upthrust . An…
Acceleration
Acceleration is how quickly the velocity is changing whether it be speed, direction or both….
Speed
Speed is how fast an object is moving in no given direction. Velocity is how…
Weight on the Moon
Weight is the force acting on an object due to gravity. The weight of an object is…
Weight on Earth
Weight is the force acting on an object due to gravity. The weight of an object can…