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Waves-Work-Power

QuestionAnswer
Definition of Wave A disturbance that transfers energy
Definition of Medium A material through which a wave can travel through
Definition of Transverse Wave Particles moving perpendicular to the direction the wave travels
Definition of Crest The points where the wave is highest
Definition of Trough The points where the waves are the lowest
Definition of Longitudinal Wave Particles moving back and forth the same direction that the wave travels
Definition of Compression A region in a longitudinal wave where the particles are closest together
Definition of Rarefaction A region in a longitudinal wave where the particles are furthest apart
Definition of Mechanical Waves Waves that require a medium
Definition of Electromagnetic Waves Waves that can travel without a medium that are vibrations of electric and magnetic fields.
Definition of Amplitude A measure of how far particles in the medium move from their rest position
Definition of Wavelength The distance from any point on a wave to the next identical point on the same wave
Definition of Frequency The number of waves that pass a point in a given amount of time
Definition of Hertz What frequency is measured in (one hertz is equal to one wavelength per second)
Definition of Wave Speed The speeds that waves travel
Definition of Force A push or pull exerted on an object in order to change the motion of the object
Definition of Work The use of force to move an object some distance
Definition of Power The rate at which work is done
What is Force measured in? Newtons
What is Work measured in? Joules
What is Power measured in? Watts
What is the formula to find Work? Work= Force 惻Distance
What is the formula to find Power? Power= Work / Time
What is the formula to find Wave Speed? Wave speed= wavelength/ wave period
If a girl has a force of 70N and a work of 140j, what is the distance? 2 meters
If a dog has the work of 180j and walks up the steps in 5 seconds, how much power does it take the dog to walk up the steps? 36 watts
If you have a wave length of 18 cm and a wave period of 3 seconds, what is the wave speed? 6 cm/second
If a boy has the force of 212N and he travels 20 meters across a football field, how much work is the boy doing? 10.6j
If a horse has a power of 78 watts and it take the horse 20 seconds to run the track, what is the horses work? 3.9j
Created by: 310046