# AQA Trilogy 1-9 - P2 - Fridge Physics

### 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 …

### 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. …

### Force, Mass and Acceleration

An object of constant mass accelerates in proportion to the force applied. Demo In this tutorial you will learn how to calculate the force applied to an object if you …

### Elastic Potential Energy

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 …

### Forces and Work Done

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 …

### Momentum

All moving objects have momentum. Forces can cause changes in momentum. The total momentum in a collision or explosion is conserved and stays the …

### Wave Period

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 Motor Effect

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 …

### Acceleration

Acceleration is how quickly the velocity is changing whether it be speed, direction or both. Acceleration is a measure of how quickly the velocity …

### Speed

Speed is how fast an object is moving in no given direction. Velocity is how fast an object is moving in a given direction. …

### Weight on the Moon

Weight is the force acting on an object due to gravity. The weight of an object is defined as the force of gravity on the object …

### Weight on Earth

Weight is the force acting on an object due to gravity. The weight of an object can be defined as the force of gravity on the …
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