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 …
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 are …
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 …
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 over …
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 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 …
All moving objects have momentum. Forces can cause changes in momentum. The total momentum in a collision or explosion is conserved and stays the same. …
All moving objects have momentum. Forces can cause changes in momentum. The total momentum in a collision or explosion is conserved and stays the same. …
Uniform or constant acceleration is a type of motion in which the velocity of an object changes by an equal amount in every equal time period.
Demo
In this …
Acceleration is how quickly the velocity is changing whether it be speed, direction or both. Acceleration is a measure of how quickly the velocity of …
Speed is how fast an object is moving in no given direction. Velocity is how fast an object is moving in a given direction. In physics, …
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 and …
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 object. …