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Science > IAPS Waves > Flashcards

IAPS Waves Flashcards

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1
Q

What type of wave is a sound wave?

A

longitudinal wave

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2
Q

What waves require a medium to travel though?

A

Electromagnetic waves

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3
Q

What is the amplitude of a wave?

A

distance between the resting position and the maximum displacement of the wave.

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4
Q

What waves has the highest frequency?

A

Gamma rays

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5
Q

What is the speed of light in a vacuum?

A

300,000 km/s

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6
Q

Which type of wave is used in communication technologies like cell phones and radios?

A

Radio waves

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7
Q

What is the reflection of sound waves called?

A

Echo

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8
Q

What is the law of reflection?

A

The angle of incidence equals the angle of reflection

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9
Q

What is not a property of a wave?

A

mass

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10
Q

What is the unit of measurement for sound intensity?

A

Decibles(dB)

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11
Q

What is the speed of sound in air at room temp.?

A

343 meters per second

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12
Q

What is the frequency range of human hearing?

A

20 Hz to 20,000 Hz

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13
Q

What is the unity of measurement for sound frequency?

A

Hertz(Hz)

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14
Q

What is the term for the bending of sound waves around obstacles?

A

Diffraction

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15
Q

What is the term for the permanent hearing damage caused by exposure to loud noise?

A

Noise-induced hearing loss

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16
Q

What is the maximum exposure time to sounds at 90 dB before hearing damage can occur?

A

8 hours

17
Q

What is the maximum exposure time to sounds at 100 dB before hearing damage can occur?

A

2 hours

18
Q

Which type of transmission uses a continuous signal to transmit information?

A

Analog transmission

19
Q

Which type of transmission is more resistant to noise and interference?

A

Digital transmission

20
Q

Which type of transmission is more bandwidth-efficient?

A

Both analog and digital transmission

21
Q

Which type of electromagnetic radiation has the longest wavelength?

A

Radio waves

22
Q

Which type of electromagnetic radiation is used in medical imaging to produce images of bones and internal organs?

A

X-rays

23
Q

Which type of electromagnetic radiation is responsible for sunburn and skin damage?

A

Ultraviolet radiation

24
Q

What are some other measures to protect against UV radiation besides sunscreen?

A

-wearing a hat and sunglasses
-Seeking shade during peak sun hours
-Apply sunscreen with the proper SPF early and often

25
Q

What is the risk of overexposure to UV radiation?

A

Skin cancer and premature aging of the skin.

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