## Quiz by Alma Aparece

Science

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30 questions
• Q1

Which electromagnetic wave has the highest energy?

Gamma rays

Visible light

Ultraviolet wave

30s
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• Q2

What happens to the frequency and wavelength if the energy of the wave decreases?

wavelength increases, frequency decreases

wavelength decreases, frequency

wavelength increases, frequency increases

wavelength decreases, frequency decreases

30s
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• Q3

Radio waves, X-ray waves, and microwaves are detected to be traveling in a vacuum. If the waves have a wavelength of 2 x 103 m, 2 x 10-9 m, 2 x 10-1 m respectively, which of the three travels the fastest?

X-ray waves

Microwaves

They all travel at the same speed.

30s
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• Q4

An FM radio station broadcasts at 90.5 MHz (9.05 x 107 Hz).The radio wave travels at the speed of light, what is its wavelength?

2. 72 x 1016 m

0.04 m

3.31 m

2. 72 x10 ^10 m

30s
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• Q5

A gamma ray with a frequency of 6.2 x 1019Hz is fired on an unknown object in space. The value of Planck’s constant is 6.626 x 10-34Js. How much energy does the wave carry?

4.11 x 10^14 J·s

4.11 x 10^-14 J

4.11 x 10^14 J

4.11 x 10^-14 J·s

30s
• Q6

What will happen if the antenna of the analog television is placed inside the house?

Pictures and sound transmitted are strong due to its enclosed location.

Pictures are clear, but the sound is intermittent due to its enclosed location

Pictures are blurred, but the sound is good due to the transmitter’s location

Pictures and sound transmitted are weak due to the location of the transmitter

30s
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• Q7

Which is NOT included in the group for radio communication?

Antennas

Amplifier

Oscillator

WIFI Router

30s
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• Q8

Which causes sugar, water, and fat to vibrate at extremely high frequencies?

Microwave energy

Kinetic energy

Cavity magnetron

30s
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• Q9

Which item must NOT be placed inside the microwave oven?

Styrofoam

Chicken Soup

Hard-boiled eggs

Pyrex cup

30s
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• Q10

Which is the center of transmitting and receiving radio waves towards television and radio communication?

wires

LCD’s

Base Station Antenna

Speakers

30s
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• Q11

What form of electromagnetic radiation has the most energy?

X-rays

Gamma-rays

Microwave

30s
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• Q12

Which is NOT a probable result of the human tissue’s exposure to ionizing radiation?

Cancer

Death

Viral infection

Cellular damage

30s
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• Q13

What does ionizing radiation remove from atoms?

electrons

nucleus

neutrons

protons

30s
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• Q14

What is the difference between ionizing and non-ionizing radiation?

Ionizing radiation is a naturally occurring phenomenon and non-ionizing radiation is only created artificially

Non-ionizing radiation is a naturally occurring phenomenon and ionizing radiation is only created artificially

Ionizing radiation has high energy that can remove an electron from the atom, but non-ionizing does not.

30s
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• Q15

How can we protect ourselves from harmful electromagnetic radiation?

Limit sun exposure

Increase cellphone use

Put your wireless smart phone near

Spend time outdoors

30s

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