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Wave Quest

Use this to study for Quest

What is a wave? vibrations caused by a medium
What is a medium? the material (solid, liquid, or gas) through which a wave can travel
What is a transverse wave? when particles move perpendicularly in the same direction that the wave travels in
What is the crest? the highest point in a wave
What is the trough? the lowest point in a wave
What is a longitudinal wave? when the particles move back and forth in the same direction that the wave travels
What are mechanical wave ? waves that require a medium
What is a wavelength? a defined distance from any point on a wave to the next identical point on the same wave
What is a frequency? a number of waves that pass a point in a given amount of time
What are hertz? what frequency is measured in
What is wave speed? the speed that waves travel in
What is an electromagnetic wave? vibrations of electric and magnetic fields
What is amplitude? how far the particles in the medium move under their rest position
What is force? a push or pull exerted on an object to change its motion of the object
What is work? the use of force to move an object a distance
What is compression? energy being transferred to the end by particles being pushed together
What is rarefaction? energy being transferred to the end by particles being pulled apart
What is power? energy exerted at the rate it was exerted
If a group of movers can apply a force of 1500 newtons to move a couch 26 meters, what amount of work will they accomplish? 1500 multiplied by 26 equals 39000 joules of work
A set of ropes pulling a 1,973 N piano 6 meters in 5 seconds. What power was used? First you have to find the power by multiplying 1,973 by 6 which equals 11,838. Then to Find the power you have to divide 11,838 by 5 to get your answer which is 2,367.6 watts.
Why is compression and refraction important in a longitudinal wave? It moves the energy/air particles to a point that it is able to reach if it is in contact with the wave
What happens to the medium, when a speaker is projecting sound? The air particles are refracting and compressing to create the sound that we hear
Explain how compression and refraction in a longitudinal wave are similar to the crest and trough of a transverse wave. In a transverse wave the crest and the trough are the highest/lowest point in the wave, so when it curves it is compressing at the top and refracting between the crest and the next trough.
How much time is needed to produce 923 joules of work, if 83 watts of power was used? you have to multiply the power and the amount of work done to get how many seconds it was done in. So 923/83= about 11. 12 seconds
If 178 joules of work is needed to move a sedated loin going into surgery, 15 meters, what force is used? if you take the work and divide it by the distance you would get the force used, 178/15=about 11.87 N
Name at least two differences between a longitudinal wave and a transverse wave. Longitudinal wave: sits at it resting point/ moves parallel Transverse wave:is never at resting point/ moves in a zig-zag motion
Created by: 311578



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