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EM WAVES (INTRODUCTION)

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

It refers to the number of waves that pass a fixed point in unit time.

a)

frequency

b)

wavelength

c)

waves

d)

particles

2.

It is the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.

a)

frequency

b)

wavelength

c)

waves

d)

particles

3.

____________________ are waves that are created as a result of vibrations between an electric field and a magnetic field.

a)

Electromagnetic waves

b)

Tidal Waves

c)

Sound waves

d)

None of the choices

4.

How many EM waves do we have?

a)

7

b)

9

c)

11

d)

13

5.

The shorter the wavelength, the _____ the energy.

a)

higher

b)

lower

c)

equal

6.

The larger the wavelength, the _____ the energy.

a)

higher

b)

lower

c)

equal

7.

The higher the frequency, the __________ the wavelength.

a)

longer

b)

shorter

c)

equal

8.

The lower the frequency, the __________ the wavelength.

a)

larger

b)

shorter

c)

equal

9.

A __________ is a point on a wave is the maximum value of UPWARD displacement within a cycle.

a)

CREST

b)

PEAK

c)

HEIGHT

d)

ZENITH

10.

A __________ is a point on a wave is the minimum value of DOWNWARD displacement within a cycle.

a)

TROUGH

b)

SYNCLINE

c)

BOTTOMLINE

d)

DEPTH

11.

It is a type of elementary particle that serves as the quantum of the electromagnetic field, including electromagnetic radiation such as LIGHT and radio waves, and the force carrier for the electromagnetic force.

a)

photon

b)

micron

c)

omicron

d)

aniron

12.

It an atom or molecule with a net ELECTRIC CHARGE due to the loss or gain of one or more electrons.

a)

ION

b)

EON

c)

ZION

d)

NEON

13.

He was a brilliant German physicist and experimentalist who demonstrated that the electromagnetic waves predicted by James Clerk Maxwell actually exist.

a)

Heinrich Hertz

b)

Wilhelm Roentgen

c)

Pierre Currie

d)

Benedict Cumberbatch

14.

What is the unit of measurement of frequency?

a)

hertz

b)

cycles

c)

volts

d)

watts

15.

Which of the following is not an application of radio waves?

a)

GPS

b)

RADAR

c)

MRI

d)

UV