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Cullen Hassel SS

Cullen Hassel study stack

Wave A disturbance that transfers energy
Medium Material-solid, liquid, gas-through which a wave can travel
Transverse wave Particles move perpendicularly to the direction the wave travels
Crest The highest point in a wave
Trough The lowest point in a wave
Longitudinal wave Particles move back and forth in the same direction the wave travels
Compression When the wavelengths are close together
Rarefaction When the wavelengths are far apart
Mechanical wave A wave that requires a medium
Electromagnetic wave Not disturbances in a physical medium
Amplitude Measure of how far particles in the medium move from their rest position
Wavelength Distance from any point on a wave to the next identical point on the same wave
Frequency Number of waves that pass a point in a given amount of time
Hertz The measure of frequency
Wave speed The speed that waves travel
Force Push or pull exerted on an object measured in Newtons
Work Use of force to move an object some distance W=F multiplied by D measured in Joules
Power Measure of how much energy a force transfers when it acts on a moving object
A 20N dog climbs one flight of stairs at least once everyday to get to his bed. This takes him 5 seconds. Each step is 2 meters high. how much power does the dog generate 8 Watts
If a seventh grader runs down the hallway which is 8 meters long and his force is 35N what is his work 280 Joules
Elephants use sound with very low frequency, 5 cycles per second. If the speed of sound is 20 degrees C is 340m/s how long is the wavelength WL=WS/F 340/5=68cm
What is the expression for power P=W/T
Unit of measurement for energy Joules
What is force measured in Newtons
The speed of the wave was 2.5cm/s and the wave traveled 50cm find the time it took the wave to travel that far S=D/T 50/5 multiplied by 5=20p T=D/T
If the frequency of a wave was 80Hz and the wavelength was 5cm what was its speed S=WL multiplied by F 80 multiplied by 5=400cm/s
Created by: chassel7