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waves

QuestionAnswer
What is power? Power is the rate at which work is done.
What is Force? Force is a push or pull exerted on an object in order to change the motion of the object.
What is work? Work is the use of force to move an object some distance.
What is a wave? A wave is the vibration in a medium.
What is a medium? A medium is what a wave travels through. (Solid, liquid, or gas)
What is a crest? A crest is the points were a wave is the highest.
What is a trough? A troughs is the points were the wave is the lowest
What is a longitudinal wave? A longitudinal wave is a wave were the particles move back and forth in the same direction that the wave travels.
What is compression? Compression is were a section of the waves is closer together.
What is rarefaction? Rarefaction is the section of a wave were it is farther apart.
What is a transverse wave? A transverse wave is when particles move perpendicular to the direction the wave travels.
What are mechanical waves? A mechanical wave is a wave that requires a medium.
What are electromagnetic waves? Electromagnetic waves are vibrations of electric and magnetic fields and don't require a medium.
What is amplitude? Amplitude is the measure of how far particles in the medium move from there rest position.
What is wavelength? Wavelength is the distance from any point on a wave to the next identical point.
What is frequency? Frequency is the number of waves that pass a point in a given amount of time.
What is a hertz? A hertz is one wavelength per second.
What is wave speed? Wave speed is the speed that waves travel.
Calculate the power: W= 342 j T= 45 sec. P= ? P= work divided by time P= 342 divided by 45 P= 7.6 watts
Calculate the work: W= ? F= 447 newtons D= 39 meters W= force times distance W= 447 times 39 W= 17,433 joules
Give 4 examples of mechanical waves. 1. music 2. vocal sounds 3. waving a towel 4. water waves
Give 4 examples of electromagnetic waves. 1. sunlight 2. microwaves 3. visible light 4. x-rays
How do you measure the wavelength of a transverse wave? You would measure from crest to crest or trough to trough.
How would you measure the wavelength of a longitudinal wave? You would measure from compression to crest or rarefaction to trough.
What is a longitudinal wave? A longitudinal wave is when particles of the medium move up and down compared to the direction the wave is moving.
what is a transverse wave? A transverse wave is when particles of the medium move perpendicularly compared to the direction the wave is moving.
Created by: hannah2937