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100
  • What are ripples in water called?

waves

100

Do waves transfer energy

yes

100

What is reflection in a wave?

When a wave moves down a rope, hits a wall and bounces back and comes back

100
  • What is the Doppler Effect?

    1. As an ambulance moves the distance between sounds waves in front of the ambulance get closer together which results in the waves reaching your ear at a higher frequency.
    2. Because at a higher frequency, you hear a higher pitched sound than you would if the ambulance were at rest.
    3. If moving away, the frequency at which the waves reached your ear would be less than if the ambulance were at rest, and you would hear the sound of the siren at a lower pitch.
    4. This is called Doppler Effect
100

Does light travel through a medium?

no

200

Most waves travel through a what and give an example?

Medium, water

200

What is a tsunami?

•Tsunamis – a huge ocean wave caused by Earthquakes ,carry enough energy to cause catastrophic damage

200
  • What is frequency?
  • Frequency –the number of full wavelengths that pass a point in a given time interval.
200

What is interference?

•When several waves are in the same location, the waves combine to produce a single, new wave that is different from the original waves – called interference

200

. Interference of sound waves produces what?

beats

300

What is a wave

•a disturbance that carries energy through matter or space

300

Tell me how transverse waves move?

Perpindicular

300

What is a crest?

•The highest point of a transverse wave is called crests

300
  • How do you tune a piano?

    1. Piano tuners listen for beats between a tuning fork of known frequency and a string on a piano
    2. By adjusting the tension in the string, the tuner can change the pitch (frequency) of the strings vibration.
    3. When no beats are heard, the string is vibration with the same frequency as the tuning fork
    4. The string is now said to be in tune
300

What is refraction?

•The bending of waves when they pass from one medium into another

•Each time waves enter a new mediu9m, they bend slightly because of a change in speed.

400

What is a standing wave

•Standing waves – form when a wave is reflected at the boundary of a medium

400

Tell me how Longitudinal waves move

parallel

400

What is a trough?

  • The lowest point of a transverse wave
400
  • Explain why colors appear on the surface of a soap bubble.

When light strikes a bubble, some light reflects off the outer surface of the bubble, while other light passes through the thickness of the bubble membrane and reflects off the inner surface. The two sets of reflected waves interfere. Some wavelengths are reinforced while others are canceled, producing colors.

400

What is diffraction?

•When waves pass the edge of an object or pass through an opening, such as open windows or a door, they spread out as if a new wave were created there. In effect, the waves seem to bend around an object or opening.

•This bending is called diffraction

500

What is the ideal shape of a wave?

SINE

500

How do surface waves move?

circular

500

What is the amplitude of a wave?

  • The greatest distance that particles are displaced from their normal resting positions because of a wave is called the amplitude
500
  • What is the speed of light?

3.00 x 10^8 m/s

500

What is the difference between constructive and destructive waves?

Constructive - makes wave bigger

Destructive -makes smaller

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