Waves Flashcards

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1
Q

What is displacement?

A

How far a point on the wave has moved from its undisturbed position.

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2
Q

What is amplitude?

A

The maximum magnitude of displacement.

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3
Q

What is wavelength?

A

The length of one whole wave cycle.

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4
Q

What is period?

A

The time taken for a whole cycle to complete.

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5
Q

What is frequency?

A

The number of cycles per second passing a given point.

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6
Q

What is phase?

A

A measurement of the position of a certain point along the wave cycle.

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7
Q

What is phase difference?

A

The amount one wave lags behind another.

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8
Q

What does an oscilloscope measure and display?

A

A cathode ray oscilloscope measures voltage. It displays waves from a signal generator as a function of voltage over time.

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9
Q

What is the displayed wave called?

A

A trace.

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10
Q

What are the names of the squares the screen is split into?

A

Divisions.

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11
Q

What is on the vertical axis and how do you control it?

A

Volts. The volts per division shown on this axis is controlled by the gain dial.

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12
Q

What is on the horizontal axis and how do you control it?

A

Seconds (also called timebase). Seconds per division can be controlled by the timebase dial.

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13
Q

What is a transverse wave?

A

A wave where the vibration is at right angles to the direction of travel.

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14
Q

What type of waves are electromagnetic waves?

A

Transverse.

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