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# Work, Power, Waves

Definition of Force: Strength or energy as an attribute of physical action or movement.
Definition of Work: An activity involving mental or physical effort done in order to achieve a purpose or result.
Definition of a Wave: A disturbance which is caring energy from one location to another through a medium.
Definition of a Medium: An object which helps carry a wave of energy to a location.
Definition of a Crest: The top of a wave.
Definition of a Trough: The bottom of a wave.
Definition of a Longitudinal Wave: Waves in which the displacement of the medium is in the same direction as or the opposite direction.
Definition of Compression: Occurs when an area is tightly packed with energy in a wave.
Definition of Rarefaction: The lessening of energy in a location.
Definition of a Transverse Wave: A wave of energy vibrating which makes it wave up and down.
Definition of Mechanical Waves: Is a wave that is made when a physical event occurs.
Definition of Electromagnetic Waves: One of the waves that is formed by periodic vibrations.
Definition of Amplitude: The maximum extent of a waves crest and trough.
Definition of Wavelength: The distance between either the crests or troughs of a wave.
Definition of Frequency: The rate at which something occurs.
Definition of Hertz: The SI unit of frequency.
Definition of Wave Speed: Is the speed at which a wave travels.
Definition of Power: Is the rate (energy amount per time period) at which work is done or energy converted.
If a group of Workers can apply a force of 1000 Newtons to move a crate 20 meters, what amount of work will they have accomplished? 20000 Joules
A set of pulleys lefts an 800 Newton crate 4 meters in 7 seconds. What amount of Power was used? 457.14
If 2 crests on the same wave are 4 meters apart, what is the wavelength between the two crests? 4 meters
What is the measurement for power? Watts
What way do particles on a medium move? Perpendicularly
What is a Rest Position? Is what the medium would look like at rest(no energy being transferred), also known as"The line of Equilibrium".
Does a low frequency wave have a longer wavelength than a high frequency wave? Yes because the energy particles are more spread out in the low frequency wave.
What way do the particles of a longitudinal wave move? They move parallel.
Created by: MAlloway02