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Waves
| Question | Answer |
|---|---|
| Waves transmit _____________. | energy |
| Waves do not transmit ____________. | matter |
| These waves can transmit energy through a vacuum. | Electromagnetic waves |
| These waves can NOT transmit energy through a vacuum. | Mechanical waves |
| In transverse waves, particles of the medium move in a direction ______________ to the direction of the wave. | perpendicular |
| In a longitudinal wave, particles of the medium move in a direction _____________ to the direction the wave moves. | parallel |
| Another name for a longitudinal wave | Compression wave |
| In a surface wave, the particles of the medium move in a __________motion. | circular |
| amplitude | the measure of wave energy; the distance from the resting position to the highest or lowest points |
| energy of the wave varies in _______________ to the amplitude of the wave | direct proportion |
| The _________ the amplitude, the _________ the energy. | higher; greater |
| wavelength of a transverse wave | distance between crests and troughs of two consecutive transverse waves |
| crest | Highest parts of a transverse wave |
| troughs | Lowest parts of a transverse wave |
| Wavelength of a longitudinal wave | Distance between compressions and rarefactions |
| compression | Most tightly packed area of a longitudinal wave |
| rarefaction | Most spread out area of a longitudinal wave |
| frequency | Number of wavelengths that pass a point in a given amount of time |
| How are wavelength and frequency related? | Inversely proportional |
| The frequency of a wave _____________ as its wavelength ______________ OR it __________ as its wavelength __________. | Increases; decreases OR Decreases; increases |
| Shorter wavelength = _____ frequency = _____ energy | Higher; more |
| Longer wavelength = ______ frequency = _____ energy | Lower; less |
| Hertz (Hz) | Unit of measurement for frequency; one Hertz = one wave per second |
| pitch | The highness or lowness of a sound |
| Doppler Effect Part One | If you are standing still and a car drives past you, the frequency of the sound will change as the car passes you. The sound pitch will be higher as the car is coming toward you and then lower as the car moves away. |
| Doppler Effect Part Two | Its frequency is the same. However, as the car is traveling toward you the speed of the car is causing the sound waves to hit your ear faster or at a higher frequency than the car is making them. |
Created by:
LH06
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