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The Nature of Light

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following describes the role of electrons?

a)

They participate in chemical reactions

b)

They add mass to the atom

c)

They add stability to the atom

d)

They define the element

2.

Which of the following is not part of the electromagnetic spectrum?

a)

visible light

b)

gamma rays

c)

electric current

d)

radio waves

3.

The true nature of light is that light is...

a)

a wave (energy)

b)

a particle

c)

both a wave (energy) and a particle

d)

a plasma

4.

Which of the following describes the photoelectric effect?

a)

A salt is placed in a flame and the flame turns a specific color

b)

Light of a specific color causes electrons to be knocked off of a piece of metal

c)

Two small atoms merge into one atom, causing a small amount of mass to be converted into a large amount of energy

d)

A rock containing a radioactive element leaves marks on film

5.

Which of the following is the term that describes the distance between one crest and the next crest of a wave?

a)

Frequency

b)

Wavelength

c)

Energy

d)

Speed of light

6.

Which of the following is the term that describes the number of crests that pass a given point each second?

a)

Frequency

b)

Wavelength

c)

Energy

d)

Speed of light

7.

ν is the symbol for which of the following?

a)

Frequency

b)

Wavelength

c)

Energy

d)

Speed of light

8.

λ is the symbol for which of the following?

a)

Frequency

b)

Wavelength

c)

Energy

d)

Speed of light

9.

A light wave that has a high frequency will also have a large ___________.

a)

Frequency

b)

Wavelength

c)

Energy

d)

Speed of light

10.

A light wave that has a high frequency will also have a small ___________.

a)

Frequency

b)

Wavelength

c)

Energy

d)

Speed of light

11.

When the wavelength of a light wave is multiplied by its frequency, the product is ______________________.

a)

The frequency

b)

The wavelength

c)

The energy

d)

The speed of light

12.

Which of the following is the term for a particle of light?

a)

Proton

b)

Plasma

c)

Gamma ray

d)

Photon

13.

Which of the following is the correct unit for wavelength?

a)

Hz

b)

m

c)

J

d)

JsJ\cdot s

14.

Which of the following is the correct unit for frequency?

a)

Hz

b)

m

c)

J

d)

JsJ\cdot s

15.

Which of the following is the correct unit for energy?

a)

Hz

b)

m

c)

J

d)

JsJ\cdot s

16.

Which of the following is the correct unit for Plank's constant (h)?

a)

1/s

b)

m/s

c)

J

d)

JsJ\cdot s

17.

Which of the following is the correct unit for the speed of light (C)?

a)

1/s

b)

m/s

c)

J

d)

JsJ\cdot s