Light: Properties, Applications, and More | Science Quiz

Question 1

Which of the following is NOT a characteristic of light?

Accepted Answer

It has mass.

Answer

It travels in straight lines.

Answer

It can be reflected and refracted.

Answer

It carries energy.

Question 2

Which material lets light pass through it without distorting the image?

Accepted Answer

Glass

Answer

Wood

Answer

Metal

Answer

Paper

Question 3

Light changes direction when it moves from air into glass. What is this effect known as?

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Question 4

Which of the following is NOT a characteristic of light?

Accepted Answer

Light has mass.

Answer

Light travels in straight lines.

Answer

Light can be reflected.

Answer

Light can be absorbed.

Question 5

Which material allows light to pass through it clearly?

Accepted Answer

Glass

Answer

Wood

Answer

Metal

Question 6

Which of these is NOT a property of light?

Accepted Answer

It has mass.

Answer

It travels in a straight line.

Answer

It is a form of energy.

Answer

It can be reflected and refracted.

Question 7

Which property is unique to light?

Accepted Answer

It can travel through a vacuum.

Answer

It can be reflected.

Answer

It can be refracted.

Answer

It has mass.

Question 8

Which of these is *not* true about light?

Accepted Answer

Light has weight.

Answer

Light travels in straight lines.

Answer

Light can be reflected and refracted.

Answer

Light has a constant speed in space.

Question 9

Which of the following is NOT a property of light?

Accepted Answer

Light has mass.

Answer

Light can travel through empty space.

Answer

Light is an electromagnetic wave.

Answer

Light can be reflected by surfaces.

Question 10

Which of the following is a property of light?

Accepted Answer

Light can be reflected off surfaces.

Accepted Answer

Light can be refracted when passing from one material to another.

Accepted Answer

Light can be absorbed by some materials.

Answer

Light can pass through opaque materials.

Question 11

Which material lets light pass through it the best?

Accepted Answer

Glass

Answer

Wood

Answer

Metal

Answer

Plastic

Question 12

What are some properties of light?

Accepted Answer

It travels in a straight line.

Accepted Answer

It can bounce off surfaces.

Accepted Answer

It can bend when passing through different materials.

Answer

It has weight.

Question 13

When light moves from air into water, what happens?

Accepted Answer

It bends towards the normal.

Answer

It bends away from the normal.

Answer

It doesn't change direction.

Answer

It reflects off the surface.

Question 14

How fast does light travel?

Accepted Answer

About 300,000 kilometres per second

Answer

About 100,000 kilometres per hour

Answer

About 1,000 kilometres per second

Answer

About 10 kilometres per hour

Question 15

When light bounces off a surface, what is this called?

Accepted Answer

Reflection

Answer

Refraction

Answer

Diffraction

Answer

Interference

Question 16

What colour does an object look if it absorbs all light?

Accepted Answer

Black

Answer

White

Answer

Red

Answer

Blue

Question 17

Which of these materials lets light pass through it most easily?

Accepted Answer

Glass

Answer

Wood

Answer

Metal

Answer

Plastic

Question 18

Which property is NOT characteristic of light?

Accepted Answer

Possession of mass

Answer

Ability to travel through a vacuum

Answer

Ability to be reflected

Answer

Wave-like nature

Question 19

As light passes from a medium with a higher refractive index to one with a lower refractive index, what occurs?

Accepted Answer

It bends away from the normal

Answer

It bends towards the normal

Answer

Its speed increases

Answer

Its wavelength decreases

Question 20

Within the electromagnetic spectrum, which component possesses the longest wavelength?

Accepted Answer

Infrared radiation

Answer

Visible light

Answer

X-rays

Answer

Gamma rays

Question 21

In the human eye, what is the function of the retina?

Accepted Answer

Convert light into electrical signals

Answer

Focus light onto the lens

Answer

Regulate pupil size

Answer

Control eyeball movement

Question 22

Which colour of light exhibits the highest frequency?

Accepted Answer

Violet

Answer

Red

Answer

Green

Answer

Blue

Question 23

How can you demonstrate the reflection of light?

Accepted Answer

Using a mirror

Answer

Using a prism

Answer

Using a lens

Answer

Using a diffraction grating

Question 24

Which material reflects light the best?

Accepted Answer

Mirror

Answer

Glass

Answer

Water

Answer

Brick

Question 25

When light moves from air into water, what happens to its speed and direction?

Accepted Answer

Slows down, bends away from the normal

Answer

Speeds up, bends towards the normal

Answer

Speeds up, bends away from the normal

Answer

Slows down, bends towards the normal

Question 26

Which part of the electromagnetic spectrum contains the highest frequency and energy?

Accepted Answer

X-rays

Answer

Visible light

Answer

Ultraviolet light

Answer

Radio waves

Question 27

How do we perceive objects?

Accepted Answer

Objects reflect light that enters our eyes

Answer

Objects emit light that enters our eyes

Answer

Our eyes emit light that bounces off objects

Answer

Objects absorb light that enters our eyes

Question 28

Approximately how fast does light travel in a vacuum?

Accepted Answer

300,000 km/s

Answer

30,000 km/s

Answer

3,000 km/s

Answer

300,000 m/s

Question 29

Which property does NOT belong to light?

Accepted Answer

Has mass

Answer

Travels in straight lines

Answer

Can be reflected

Answer

Can be refracted

Question 30

Why is white light separated into different colors when passing through a prism?

Accepted Answer

The prism refracts the different colors at different angles

Answer

The prism selectively absorbs certain colors

Answer

The prism reflects the different colors

Answer

The prism scatters the different colors

Question 31

When a light ray strikes a mirror at an angle of 45 degrees, what angle does it reflect at?

Accepted Answer

22.5 degrees

Answer

45 degrees

Answer

90 degrees

Answer

180 degrees

Question 32

Which material allows light to pass through it the most?

Accepted Answer

Glass

Answer

Metal

Answer

Concrete

Answer

Wood

Question 33

Which color of light has the smallest wavelength?

Accepted Answer

Blue

Answer

Red

Answer

Green

Answer

Yellow

Question 34

Which part of the eye focuses light?

Accepted Answer

Lens

Answer

Cornea

Answer

Iris

Answer

Retina

Question 35

Which frequency of light has the highest energy?

Accepted Answer

Blue

Answer

Red

Answer

Yellow

Answer

Green

Question 36

What is the term for the eye's ability to adjust to different light levels?

Accepted Answer

Adaptation

Answer

Accommodation

Answer

Constriction

Answer

Dilation

Question 37

When light hits a smooth surface at an angle, what happens?

Accepted Answer

It reflects at the same angle.

Answer

It refracts at the same angle.

Answer

It is absorbed by the surface.

Answer

It scatters in different directions.

Question 38

Which colour of visible light has the shortest wavelength?

Accepted Answer

Violet

Answer

Red

Answer

Orange

Answer

Green

Question 39

Which type of lens bends light rays together?

Accepted Answer

Convex lens

Answer

Concave lens

Answer

Plane mirror

Answer

Prism

Question 40

Which of these is NOT a use of lasers?

Accepted Answer

For magnification

Answer

In surgery

Answer

In communication systems

Answer

In creating holograms

Question 41

When light travels from air into water, what happens?

Accepted Answer

It slows down.

Answer

It speeds up.

Answer

Its speed stays the same.

Answer

Its behaviour depends on the colour of light.

Question 42

Approximately how fast does light travel?

Accepted Answer

300,000 km/s

Answer

3000 km/s

Answer

3 million km/s

Answer

30 billion km/s

Question 43

Which of the following can you NOT see in the dark?

Accepted Answer

A black piece of paper

Answer

A lit candle

Answer

A light bulb

Answer

A glowing firefly

Question 44

Why does an apple look red?

Accepted Answer

It absorbs all colors of light except red.

Answer

It reflects all colors of light equally.

Answer

It lets all colors of light pass through it.

Answer

It absorbs all colors of light.

Question 45

Which of the following is **not** a property of light?

Accepted Answer

It has a mass.

Answer

It travels in a straight line.

Answer

It can be reflected.

Answer

It is a form of energy.

Question 46

What is the name of the visible part of the electromagnetic spectrum?

Accepted Answer

Visible light spectrum

Answer

Ultraviolet spectrum

Answer

Infrared spectrum

Answer

Microwave spectrum

Question 47

Which of the following materials allows light to pass through it **most** easily?

Accepted Answer

Glass

Answer

Wood

Answer

Brick

Answer

Metal

Question 48

What is the main job of the lens in the human eye?

Accepted Answer

To focus light on the retina

Answer

To control the amount of light entering the eye

Answer

To detect colours

Answer

To convert light into electrical signals

Question 49

Which of the following is **not** an application of light in technology?

Accepted Answer

Sound recording

Answer

Lasers

Answer

Fibre optics

Answer

Solar cells

Question 50

Which of the following is the SI unit of luminous intensity?

Accepted Answer

Candela

Answer

Lumen

Answer

Lux

Answer

Watt

Question 51

Which colour of light has the **shortest** wavelength?

Accepted Answer

Violet

Answer

Red

Answer

Green

Answer

Blue

Question 52

Which of the following is NOT a characteristic of light?

Accepted Answer

Light has mass.

Answer

Light can travel in a vacuum.

Answer

Light can be reflected.

Answer

Light can be refracted.

Question 53

When light strikes a shiny surface, such as a mirror, what happens?

Accepted Answer

The light is reflected.

Answer

The light is absorbed.

Answer

The light is refracted.

Answer

The light is diffracted.

Question 54

When light moves from one material to another, it can change direction. This phenomenon is called:

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Answer

Interference

Question 55

Which region of the electromagnetic spectrum has the longest wavelengths?

Accepted Answer

Microwaves

Answer

X-rays

Answer

Ultraviolet light

Answer

Infrared light

Question 56

Which part of the human eye changes light into electrical signals?

Accepted Answer

Retina

Answer

Cornea

Answer

Pupil

Answer

Lens

Question 57

Which of the following devices uses light to transfer information across large distances?

Accepted Answer

Fiber optic cable

Answer

Laser pointer

Answer

Incandescent light bulb

Answer

Solar panel

Question 58

A beam of light hits a flat mirror at an angle of 30 degrees. At what angle will the beam bounce off?

Accepted Answer

30 degrees

Answer

15 degrees

Answer

60 degrees

Answer

90 degrees

Question 59

Which color of light has the highest frequency?

Accepted Answer

Blue

Answer

Red

Answer

Green

Answer

Yellow

Question 60

How fast does light travel through a vacuum?

Accepted Answer

300,000 km/s

Answer

100 m/s

Answer

300 m/s

Answer

300,000 m/s

Question 61

Which of the following materials is most transparent?

Accepted Answer

Glass

Answer

Wood

Answer

Water

Answer

Metal

Question 62

Which of these is NOT a property of light?

Accepted Answer

Light has weight.

Answer

Light travels in straight lines.

Answer

Light can bounce off surfaces.

Answer

Light can bend when it passes through different materials.

Question 63

When light hits a shiny surface like a mirror, what happens to it?

Accepted Answer

It bounces off the mirror (reflected).

Answer

It is taken in by the mirror (absorbed).

Answer

It is bent as it passes through the mirror (refracted).

Answer

It spreads out in all directions (scattered).

Question 64

The range of colors we can see is called:

Accepted Answer

Visible light

Answer

Radio waves

Answer

Microwaves

Answer

Ultraviolet waves