waves Flashcards

1
Q

what is a wave

A

an oscillation or vibration that transfers energy

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2
Q

what is amplitude

A

distance from the middle to the top of the wave

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3
Q

what is wavelength

A

distance from one peak to the next

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4
Q

what is the peak/crest

A

the highest point of a wave

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5
Q

what is the trough

A

the lowest point of a wave

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6
Q

what is a frequency

A

number of waves that go past a point in a second

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7
Q

what is frequency measured in

A

Hertz

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8
Q

what are the 2 types of waves

A

-longitudinal(are represented in lines)
-transverse(goes up and down)

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9
Q

what are rarefactions in longitudinal waves

A

where the lines are further apart

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10
Q

what are compressions in longitudinal waves

A

where the lines are closer together

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11
Q

what happens when waves meet

A

they superpose, meaning they add up or cancel out depending if they are in time with each other

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12
Q

what is a reflection

A

when waves bounce off surfaces and barriers

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