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Laabri

Savvas 7th Grade Waves, Sound, and Light Modified

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Last updated about 3 years ago
22 Nsɛmmisa
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1.

The maximum distance that the particles of a medium move from the rest position is the

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2.

The distance between two corresponding parts of a wave is the wave’s

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3.

The speed of a wave is its wavelength multiplied by its

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4.

Electromagnetic waves can transfer energy without a(n)

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5.

Why do you see lightning from a distant storm before you hear thunder ?

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Mechanical waves are created when a source of energy causes a medium to

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7.

In a longitudinal wave moving along a spring, areas where the coils are farthest apart are

called .

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8.

The highest point of a transverse wave is called .

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9.

The more a mechanical wave has, the greater its amplitude.

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10.

In the phenomenon known as the effect, electric current will flow when light shines on certain substances.

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11.

The of a wave is the number of waves that pass a given point in a certain amount of time.

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12.

The model of light describes the behavior of light when it acts as a stream of photons.

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13.

Energy transferred from electromagnetic waves through matter and space is called electromagnetic radiation.

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14.

The three types of mechanical waves are transverse waves, latitudinal waves, and surface waves.

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15.

Frequency is measured in units called hertz.

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16.

Dividing the distance a wave travels by the time it takes to travel that distance gives you the wave's speed

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17.

The height of a wave's trough depends on its amplitude.

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18.

Waves that require a medium through which to travel are called electromagnetic waves.

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19.

What kind of wave is being generated?

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20.

Look at diagram above. In what direction does the medium move relative to the direction of the wave? Explain.

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21.

Look at diagram above. What does the person transfer to the rope by pulling it up and down at point A?

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22.

Compare how polarized light is different from non-polarized light.