click below
click below
Normal Size Small Size show me how
Work, Power, Waves
Question | Answer |
---|---|
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. |