wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

sources of light and reflection

Total questions: 86

Worksheet time: 2hrs 42mins

Name
Class
Date
1.
Light travels in a straight line
a)
True
b)
False
2.

The picture here is an example of...

a)

phosphorescence

b)

chemiluminescence

c)

bioluminescence

d)

luminescence

3.

The sun is an example of a ________ light source

a)

Combustion

b)

Luminous

c)

Chemical

d)

Non-luminous

4.
The property of emission of light by an object, when heated to a high temperature
a)
bioluminescence
b)
luminesence
c)
incandescence
d)
none of the above
5.
You have cool glow-in-the-dark stickers of Mickey Mouse. This is an example of 
a)
fluorescence
b)
chemiluminescence
c)
phosphorescence 
d)
incandescence
6.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
7.

All of the following are luminous sources of light except ______________

a)

the sun

b)

a light bulb

c)

fire

d)

the moon

8.

Which of the following are luminous sources of light?

a)
b)
c)
d)
e)
9.

What is the main reason incandescent light bulbs are considered inefficient?

a)

They produce too much light.

b)

They convert a large percentage of electricity into visible light.

c)

They convert only 5-10% of electricity used into visible light, the rest is wasted as heat.

d)

They are filled with mercury and argon gases.

10.

Which type of light production occurs when a gas glows due to an electric current passing through it?

a)

Incandescence

b)

Phosphorescence

c)

Electric Discharge

d)

Chemiluminescence

11.

What is phosphorescence?

a)

Light produced by high temperatures.

b)

Light produced by a chemical reaction without heat.

c)

Light produced by absorbing UV light and slowly emitting it as visible light.

d)

Light produced by living organisms.

12.

What is the difference between fluorescence and phosphorescence?

a)

Fluorescence occurs in living organisms, while phosphorescence does not.

b)

Fluorescence immediately emits absorbed UV light as visible light, while phosphorescence emits it slowly.

c)

Phosphorescence is a type of electric discharge, while fluorescence is not.

d)

Fluorescence produces light from high temperatures, while phosphorescence does not.

13.

Which of the following is an example of chemiluminescence?

a)

A light bulb glowing due to an electric current.

b)

A glow stick emitting light after being broken.

c)

A jacket glowing in the dark after being exposed to sunlight.

d)

A tube light filled with mercury and argon gases.

14.

What is bioluminescence?

a)

Light produced by high temperatures in living organisms.

b)

Light produced by absorbing and slowly emitting UV light in living organisms.

c)

Light produced by a chemical reaction without heat in living organisms.

d)

Light produced by an electric discharge in living organisms.

15.

What is triboluminescence?

a)

The production of light when an electric current is passed through a semiconductor material

b)

The production of light when certain crystals are scratched, crushed, or rubbed together

c)

The emission of electromagnetic waves at the same wavelength and direction

d)

The process of saving energy and staying cooler in light bulbs

16.

What is electroluminescence?

a)

The production of light when certain crystals are scratched, crushed, or rubbed together

b)

The emission of electromagnetic waves at the same wavelength and direction

c)

The production of light when an electric current is passed through a semiconductor material

d)

The process of saving energy and staying cooler in light bulbs

17.

Which of the following is an example of electroluminescence?

a)

Incandescent light bulbs

b)

Biting wintergreen lifesavers

c)

Light-Emitting Diode (LED)

d)

Laser light

18.

What are the advantages of LEDs over incandescent and CFL bulbs?

a)

They emit light at exactly the same wavelength

b)

They are used in laser pointers

c)

They save energy, last longer, and stay cooler

d)

They have no real practical application

19.

Why should you never look directly into a laser beam?

a)

Because it can damage your eyes

b)

Because it is less intense than other light sources

c)

Because it emits light at many different wavelengths

d)

Because it is used in traffic lights

20.

Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?

a)

Light travels in a straight line

b)

Refraction of light

c)

Reflection of light

d)

Light travels in parallel

21.

The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?

a)
b)
c)
d)
22.

The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.

Why?

a)

Light travels in a straight line

b)

Light is refracted

c)

Light is reflected

d)

Light travels in two different mediums

23.

Tick the correct of TWO devices which use the principle of light reflection in our daily lives.

a)
b)
c)
d)
24.

Ariff is watching a cat on a wall using a periscope. Which of the following is the correct reflected ray diagram in the periscope? Tick the correct answer.

a)
b)
c)

None

d)

None

25.
Light can travel through empty space.
a)
True
b)
False
26.
These waves travel in a __________ line.
a)
jagged
b)
squiggly
c)
straight
d)
obstructive 
27.
You have cool glow-in-the-dark stickers of Mickey Mouse. This is an example of 
a)
fluorescence
b)
chemiluminescence
c)
phosphorescence 
d)
incandescence
28.
You can see through water because ---
a)
it's opaque
b)
it's translucent 
c)
it's transparent
d)
it's wet
29.
Tissue paper is __________?
a)
opaque
b)
transparent
c)
translucent 
30.
Luminous means...
a)
Gives out its own light
b)
Reflects light from other things
31.
What is an example of artificial light?
a)
the sun 
b)
the stars 
c)
bioluminescence 
d)
neon light 
32.
All of the following are sources of light except ______________
a)
the sun
b)
a light bulb
c)
fire
d)
the moon
33.
A material that reflects or absorbs all of the light that strikes it is called which of the following? 
a)
Transparent
b)
Translucent
c)
Diffuse
d)
Opaque
34.
The picture here is an example of...
a)
artificial light called bioluminescence
b)
artificial light called chemiluminescence
c)
natural light called bioluminescence
d)
natural light called chemiluminescence
35.

This type of light produced when ultraviolet light is absorbed and then reflected in longer wavelengths.

a)

incandescent

b)

bioluminescent

c)

phosphorescent

d)

fluorescent

36.
The picture here is an example of...
a)
artificial light called bioluminescence
b)
artificial light called chemiluminescence
c)
natural light called bioluminescence
d)
natural light called chemiluminescence
37.

This kind of light is formed by objects without getting hot:

a)

Incandescence

b)

Iridescence

c)

Luminescence

d)

Friction

38.
You have cool glow-in-the-dark stickers of Mickey Mouse. This is an example of 
a)
fluorescence
b)
chemiluminescence
c)
phosphorescence 
d)
incandescence
39.

Light produced by an object due to being a very high temperature is called

a)

fluorescent

b)

electric discharge

c)

incandescent

d)

triboluminescence

40.

The picture here is an example of...

a)

phosphorescence

b)

chemiluminescence

c)

bioluminescence

d)

luminescence

41.

What does LED stand for

a)

Light Exiting Daylight

b)

Luminous Emitter Dark

c)

Light Emitting Diode

d)

Light Englowing Damper

42.

T/F: Bioluminescence is light produced by a living organism.

a)

True

b)

False

43.

Glow sticks use ____ to produce light

a)

Fire

b)

Chemical reactions

c)

Heat

d)

Fluorescence

44.

A "glow in the dark" sticker glows because of _____

a)

Fluorescence

b)

Phosphorescence

c)

Incandescence

d)

Bioluminescence

45.

Lightning is an example of:

a)

Fluorescence

b)

Electric Discharge

c)

LED

d)

Bioluminescence

46.

The image shown here is an example of:

a)

Phosphorescence

b)

"Glow in the Dark"

c)

Radioluminescence

d)

LED

47.

Light caused by friction is called:

a)

Phosphorescence

b)

Fluorescence

c)

Triboluminescence

d)

Incandescence

48.

LEDs produce light as a result of:

a)

an electric current passing through a semi-conductor

b)

chemical reactions

c)

heat

d)

friction

49.

Light caused by friction is called:

a)

Phosphorescence

b)

Fluorescence

c)

Triboluminescence

d)

Incandescence

50.

This is an example of

a)

Luminescence

b)

Incandescence

c)

Bioluminescence

d)

Phosphorescence

51.

Which of these is a source of light?

a)
b)
c)
d)
52.

One of these is not a source of light

a)
b)
c)
d)
53.
Light is a KIND of ENERGY.
a)
True
b)
False
54.

This type of light if produced when ultraviolet light is absorbed:

a)

incandescent

b)

bioluminescent

c)

phosphorescent

d)

flourescent

55.

One advantage that fluorescent tubes have over incandescent bulbs is that:

a)

The fluorescent tubes are cooler because they use less thermal energy.

b)

The fluorescent tubes have toxic components.

c)

Incandescent bulbs are less expensive to make.

d)

Incandescent bulbs are brighter.

56.

When a light ray hits a transparent object it:

a)

Travels straight through it.

b)

Is scattered by the object into different directions.

c)

It moves around the object.

d)

It is reflected back and casts a shadow.

57.

When a light ray hits a translucent object it:

a)

Travels straight through it.

b)

It travels through it but some light is scattered.

c)

Travels around the object.

d)

Is reflected back and casts a shadow.

58.

Which of the following has the longest wavelength?

a)

microwaves

b)

UV rays

c)

Infrared

d)

Gamma rays

59.

Which of the following has the most energy?

a)

Red

b)

Blue

c)

Green

d)

Yellow

60.

Which of the following has the most energy?

a)

X-rays

b)

The color green

c)

Microwaves

d)

Infrared

61.

Which of the following has the shortest wavelength?

a)

Infrared

b)

The color Indigo

c)

Infrared

d)

TV

62.

Which of the following has the least amount of energy?

a)

UV rays

b)

The color yellow

c)

Radio waves

d)

Gamma rays

63.

Which of the following has the longest wavelength?

a)

Gamma rays

b)

The color blue

c)

TV

d)

Infrared

64.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
65.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
66.

Which color has the longest wavelength?

a)

Yellow

b)

Red

c)

Green

d)

Purple

67.

Which of the following is not in the electromagnetic spectrum?

a)

Light waves

b)

Sound waves

c)

Radio Waves

d)

X-rays

68.

In which list are forms of electromagnetic energy arranged in order from longest to shortest wavelength?

a)

Microwave -> Radio wave -> Infrared rays

b)

Visible light -> x-ray -> radio wave

c)

Microwave -> infrared -> visibile light

d)

Infrared -> radio wave -> ultraviolet

69.

What is the correct order of the visible light spectrum starting with the longer wavelength?

a)

Red, yellow, orange, blue, violet, indigo

b)

Violet, indigo, blue, green, yellow, orange, red

c)

Green, yellow, blue, indigo, red, orange

d)

Red, orange, yellow, green, blue, indigo, violet

70.

The energy pathway for an incandescent source is:

a)

Visible light becomes electrical energy which then becomes thermal energy.

b)

Thermal energy becomes visible light energy which then becomes electrical energy.

c)

Electrical energy becomes thermal energy which then becomes visible light energy.

d)

Electrical energy becomes visible light energy which then becomes thermal energy.

71.

When a light ray hits an opaque object it:

a)

Goes straight through it.

b)

Becomes lots of smaller rays of light.

c)

Moves around the object.

d)

Is reflected back by the object.

72.

A bright object that does not produce light is termed...

a)

luminous

b)

non-luminous

c)

chemiluminous

73.

What does LED stand for

a)

Light Exiting Daylight

b)

Luminous Emitter Dark

c)

Light Emitting Diode

d)

Light Englowing Damper

74.

The picture here is an example of...

a)

phosphorescence

b)

chemiluminescence

c)

bioluminescence

d)

luminescence

75.

Light produced by an object due to being a very high temperature is called

a)

fluorescent

b)

electric discharge

c)

incandescent

d)

triboluminescence

76.

This type of light produced when ultraviolet light is absorbed and then reflected in longer wavelengths.

a)

incandescent

b)

bioluminescent

c)

phosphorescent

d)

fluorescent

77.

Hot air rising is an example of...

a)

radiation

b)

conduction

c)

convection

78.

What type of energy does not require a material to move through?

a)

Radiation

b)

Conduction

c)

Convection

79.
These high-energy waves are given off by radioactive materials.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
80.
These waves make water molecules vibrate and warm up.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
81.

Which type of waves are used in broadcasting?

a)

infrared rays

b)

X-rays

c)

radio waves

d)

gamma rays

82.

Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?

a)

Ultraviolet Rays

b)

Microwaves

c)

Infrared Rays

d)

Gamma Rays

83.

Which section of the spectrum is the ONLY one we can see?

a)

Ultraviolet Rays

b)

Gamma Rays

c)

X-Rays

d)

Visible Light

84.

Electromagnetic waves that help your body produce vitamin D are called?

a)

Ultraviolet rays

b)

X-rays

c)

Radio waves

d)

Gamma rays

85.

Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength

a)

Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma

b)

Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio

c)

Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio

d)

Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

86.
The distance between two crests or two troughs of a wave is called:
a)
frequency
b)

amplitude

c)
wavelength
d)
hertz

Similar Resources on Wayground

Biomolecules Review

81 questions

Biomolecules Review

quiz

Worksheet

•

9th - 10th Grade

HBS 1.1 (New)

84 questions

HBS 1.1 (New)

quiz

Worksheet

•

10th Grade

B5 AQA Homeostasis

86 questions

B5 AQA Homeostasis

quiz

Worksheet

•

KG - 12th Grade

Unit 4 Bio Test Review

90 questions

Unit 4 Bio Test Review

quiz

Worksheet

•

9th - 12th Grade

APES Unit 3: Populations

85 questions

APES Unit 3: Populations

quiz

Worksheet

•

9th - 12th Grade

2023 Waves Unit Review

89 questions

2023 Waves Unit Review

quiz

Worksheet

•

9th - 12th Grade

PHSC 100 - Midterm Review

88 questions

PHSC 100 - Midterm Review

quiz

Worksheet

•

8th - 10th Grade

Environmental Science Final Review Quiz

85 questions

Environmental Science Final Review Quiz

quiz

Worksheet

•

9th - 12th Grade