Wave and Light Test Review Flashcards

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1
Q

Sound waves travel fastest through ________

A

solids

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2
Q

The number of waves that pass a given point in a second is known as a wave’s ________________

A

frequency

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3
Q

A wave is a pattern of motion that transports _______

A

energy

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4
Q

The colors we see depend on the wavelength and frequency of the light. True or False

A

True

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5
Q

Objects that absorb certain wavelengths of light and transmit other wavelengths are called __________ objects.

A

translucent

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6
Q

Which of the following forms of electromagnetic radiation has the highest frequency?

A

gamma rays

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7
Q

Which of the following forms of electromagnetic radiation has the longest wavelength?

A

radio waves

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8
Q

Most sound waves travel through air making ______________ and rarefaction

A

compression

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9
Q

Higher frequency = _________ pitch

A

higher

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10
Q

Ultraviolet radiation is a form of electromagnetic radiation that has a longer wavelength than visible light and is therefore not detectable by the human eye. True or False

A

False - ultraviolet radiation has shorter wavelengths than visible

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11
Q

The relationship between wavelength and frequency is _________ proportional.

A

inversely

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12
Q

When a sound source is moving towards you, you hear a __________ frequency sound

A

higher

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13
Q

Electromagnetic radiation is organized by how much ________ it carries.

A

energy

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14
Q

Objects that do not allow light to pass through them are called _________ objects.

A

opaque

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15
Q

Humans cannot see infrared light with the naked eye, and can feel infrared’s energy in the form of heat on their skin. True or False

A

True - infrared light does not fall in the visible light spectrum, therefore can only be felt, but not seen

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16
Q

Two objects of the same size and material are left in direct sunlight for 30 minutes. After 30 minutes, which object would have increased temperature the most? White or dark cloth

A

Dark Cloth - the dark material does not allow any light to pass through it, therefore absorbing all the energy making the temperature increase

17
Q

When an object appears green, which light is reflected? Which light is absorbed?

A

Green is absorbed, Roy Biv is absorbed

18
Q

A waves velocity will __________ (increase or decrease) as it moves from a less dense medium to a more dense medium

A

decrease

19
Q

Which answer lists the correct order of the visible light spectrum from the lowest energy to the highest energy?

A

Roy G Biv

20
Q

Electromagnetic waves are ___________ to mechanical waves because they _____ need a medium to travel through.

A

not similar, don’t

21
Q

How do electromagnetic waves differ from mechanical waves?

A

electromagnetic waves do not need a medium to travel through, mechanical do

22
Q

sound waves cannot travel through which of these: paper, water, hydrogen, outer space

A

outer space

23
Q

Waves transfer ___________

A

energy

24
Q

At which temperature does sound move the fastest?

A

sound moves faster in higher temperatures and slowest in lower temperatures

25
Q

how can you tell how much energy a wave has? What does least energy look like? What does more energy look like?

A

You can tell the amount of energy from the length of the wavelength, the longer the wavelength, the less the energy, the shorter the wavelength, the more the energy.

26
Q

As wavelength increases, frequency ___________

A

decreases