click below
click below
Normal Size Small Size show me how
Waves
Question | Answer |
---|---|
What is a wave? | A distrubance that travels through a medium from one location to another location |
What is a medium? | A substance or material that carries the wave. |
A water wave has a frequency of 2 hertz and a wavelength of 5 meters. Calculate its speed | 10m/s |
The frequency of wave A is 250 hertz and the wavelength is 30 centimeters. The frequency of wave B is 260 hertz and the wavelength is 25 centimeters. Which is the faster wave? | A=7500 B=6500 Wave A is faster |
A sound wave travels at 330 sec and has a wavelength of 2 meters. Calculate its frequency and period. | F=165hz F=1/165 |
Can two waves interfere with eachother so that the new wave formed by their combination has NO amplitude? What interference is this? | Yes Destructive interference |
What happens to the amplitude of a wave as the result of Contructive Interference? | Add up to make larger amplitude |
What happens to the amplitude of a wave as the result of Destructive Interference? | Add up to make a wave with smaller or zero amplitude |
What two things determine the amount of diffraction a wave will experience? | Size of opening and wavelength |
Describe what you would hear as the ambulance moves away from you and what your friend would hear as the ambulance moves towards them. | Your friend would hear a higher pitch and you would hear a low pitch. |
What does waves carry? | energy not matter |
What is the definition of frequency? | How often something happens |
What is the definition of wavelength? | length of one complete wave cycle |
What is the definition of Amplitude? | The maximum amount of displacement of a particle on the medium from its rest position. |
What are the variables that affect reflection? | Amplitude, wavespeed, direction |
What does diffraction do to a wave? | Makes the wave bend |
What is the variable that affects Constructive Interference? | Amplitude |
What does a wave do to Destructive Interference? | Let waves pass through eachother |
Is a convex mirror a virtual image or a real image? | virtual image |
What other name does a convex mirror go by? | Diverging mirror |