Free Printable LIGHT AND OPTIC

Worksheets

LIGHT AND OPTIC

Total questions: 23

Worksheet time: 15mins

Name

Class

Date

A red bird appears red because it REFLECTS what color

Magenta

Red

Cyan

Doesn't reflect any light

This is an example of...

Reflection

Refraction

Polarization

Spectrum

Refraction

When energy is absorbed

Occurs when energy is absorbed

Occurs when energy waves travel through substance

When light hits a substance

What three things may happen to light that strikes an object?

The light may be reflected, transmitted or absorbed.

The light may be reflected and refracted.

The light may be absorbed and transmitted.

A plane mirror produces a/an

a small, real image

a large, real image

a small, virtual image

a same sized, virtual image

A student placed a pencil in a cup of water. The pencil appears broken because light-

always travels in a straight line

bends when it passes through water

makes the water in the glass evaporate

reflects the pencil on the water's surface

Reflection

Refraction

What is the difference between reflection and refraction?

Both involve light bending through a medium

Reflection is light bouncing off a medium's surface and refraction is light bending through a medium

Reflection is light bending through a medium's surface and refraction is light bouncing off a medium

Refraction is light being absorbed in a medium and reflection is light being bent through a different medium

The picture shows how we view our sky as blue. This occurs due to ________.

the scattering of white light

light being refracted by our atmosphere

sunlight being blue

the dispersion of white light

10.

What is TRUE about the picture?

The refractive index of the material in the top picture is lower than the refractive index of the bottom material

We see light refracting toward the normal line

The angle of incidence in the top picture is greater than the angle of refraction in the bottom picture

All answers are correct

11.

Which of the following are the characteristics of the image formed in a plane mirror?

Virtual and upright

Virtual and inverted

12.

The diagram shows phenomenon X that usually happens after rain.

Reflection of light

Dispersion of light

13.

Mark TWO correct explanation about reflection of light on plane mirror.

Angle of incident is equal to angle of reflection.

Image formed is inverted.

Image distance from mirror is equal to object distance from mirror.

14.

The diagram shows a ray of reflection of light in a plane mirror.

Angle of reflection

Angle of incidence

15.

Based on the diagram, which mixture of colour is true?

Blue + Green = Red

Blue + Red = Purple

Red + Green = Yellow

16.

Choose the characteristics of image form from above ray diagram?

Real

Inverted

Magnified

Virtual

Upright

17.

Choose the characteristics of image form from above ray diagram?

Real

Inverted

Magnified

Virtual

Upright

18.

Which window is opaque?

Window 1

Window 2

Window 3

None

19.

When light rays are blocked by an opaque object, a___________ are formed.

light

picture

shadow

smell

20.

Determine the angles of incidence and reflection.

angles of incidence= 50; angles of reflection=50

angles of incidence= 40; angles of reflection=40

angles of incidence= 50; angles of reflection=40

angles of incidence= 40; angles of reflection=50

21.

What are the primary colors of the pigment?

cyan, yellow and magenta

Red, green and blue

black and white

22.

Light refracted __________ normal when move from more dense to less dense mediums.

away from

towards

23.

Lights does not refracted when angle of incident is _______ to ______.

equal, 90^o

equal, 45^o

not equal, 90^o

not equal, 45^o

Reset

LIGHT AND OPTIC

Total questions: 23

Worksheet time: 15mins

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