13 Electromagnetic Spectrum  2019 J & 2020 J/N

13 Electromagnetic Spectrum 2019 J & 2020 J/N

10th Grade

11 Qs

quiz-placeholder

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13 Electromagnetic Spectrum  2019 J & 2020 J/N

13 Electromagnetic Spectrum 2019 J & 2020 J/N

Assessment

Quiz

Physics

10th Grade

Hard

Created by

Lee Peng TUNG

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An eclipse of the Sun happens when the Moon comes between the Earth and the Sun.

Which statement is correct?

Infra-red radiation from the Sun disappears before visible light and ultra-violet radiation.

Ultra-violet radiation from the Sun disappears before visible light and infra-red radiation.

Visible light from the Sun disappears before ultra-violet radiation and infra-red radiation.

Infra-red radiation, ultra-violet radiation and visible light from the Sun all disappear at the same moment.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement about microwaves is correct?

Microwaves are longitudinal waves.

The frequencies of microwaves are greater than the frequencies of visible light.

The speed of microwaves in a vacuum is equal to the speed of visible light in a vacuum.

The wavelengths of microwaves are smaller than the wavelengths of infra-red.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the speed of X-rays in a vacuum and in air?

in a vacuum: 3.0 × 10^6 m/s, in air: 3.0 × 10^6 m/s

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The diagram shows the electromagnetic spectrum. A word is missing from the label below the spectrum. Which word is missing?

amplitude

frequency

speed

wavelength

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The wavelength of blue light changes from 4.7 × 10⁻⁷ m to 3.5 × 10⁻⁷ m as it passes from air to water. What is the speed of this light in water?

7.4 × 10⁷ m/s

1.3 × 10⁸ m/s

2.2 × 10⁸ m/s

3.0 × 10⁸ m/s

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An intruder alarm sensor detects that a person is warmer than his surroundings. Which type of electromagnetic wave does the sensor detect?

infrared

radio

ultraviolet

visible light

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The frequency of the microwaves used in a microwave oven is 2400 MHz. What is the wavelength of these microwaves?

0.125 m

8.00 m

125 m

7200 m

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