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Baseline Test: Refraction and Lenses

Total questions: 29

Worksheet time: 30mins

Name
Class
Date
1.

Light is transferred by a process called:

a)

Irridation

b)

Radiation

c)

Rectilinear motion.

d)

Non-luminous.

2.

An object that produces its own light is called a ---- object.

a)

non-luminous

b)

specular

c)

luminous

d)

scattered

3.

The phenomenon of light travelling in straight lines, is termed:

a)

radiation

b)

irridation

c)

wave motion

d)

rectilinear motion.

4.

The SI unit for the speed of light is:

a)

3,0 x 108 m.s-1

b)

3,0 x 108 km.h-1

c)

3,0 x 102 m.s-1

d)

3,0 x 102 km.h-1

5.

The sketch shows an example of:

a)

how a camera works.

b)

the formation of the object.

c)

a pinhole camera.

d)

how the eye works.

6.

Light is an example of a wave.

Label A is:

a)

Peak

b)

Trough

c)

Wavelength

7.

Light is an example of a wave.

Label B is:

a)

Peak

b)

Trough

c)

Wavelength

8.

Light is an example of a wave.

Label C is:

a)

Peak

b)

Trough

c)

Wavelength

9.

Frequency is defined as:

a)

the number of peaks that pass a point per second.

b)

the number of troughs that pass a point per second.

c)

the number of wavelengths that pass a point per second.

d)

the number of normals that pass a point per second.

10.

When white light passes through a triangular prism, it breaks up into the colours of the spectrum. This process is called:

a)

refraction

b)

dispersion

c)

inversion

d)

sublimation

11.

The colour that has the longest wavelength is red.

a)

True

b)

False

12.

The colour with the greatest energy is yellow.

a)

True

b)

False

13.

The example in the sketch that does not allow light to travel through it is:

a)

1

b)

2

c)

3

14.

In the diagram above, the light source is at Point:

a)

A

b)

B

c)

C

15.

This balloon is blue because the only colour reflected is:

a)

red

b)

orange

c)

blue

d)

violet

16.

Black objects are black because:

a)

they do not reflect any colours.

b)

they only reflect red light.

c)

they only reflect blue light.

d)

they reflect all colours.

17.

In the diagram, Label D is the:

a)

Angle of Incidence.

b)

Normal.

c)

Reflected Ray.

d)

Angle of Reflection.

18.

In the diagram, Label B is the:

a)

Angle of Incidence.

b)

Normal.

c)

Reflected Ray.

d)

Angle of Reflection.

19.

In the diagram, Label A is the:

a)

Angle of Incidence.

b)

Normal.

c)

Reflected Ray.

d)

Angle of Reflection.

20.

In the diagram, Label C is the:

a)

Angle of Incidence.

b)

Normal.

c)

Reflected Ray.

d)

Angle of Reflection.

21.

This is an example of ------- reflection.

a)

specular

b)

spectacular

c)

scattered

d)

irregular

22.

This is an example of ------- reflection.

a)

spectacular

b)

specular

c)

scattered

d)

irregular

23.

The structure(s) responsible for the amount of light entering the eye is:

a)

A

b)

B

c)

C

d)

D

24.

The image created on the retina of the eye is:

a)

upright.

b)

inverted.

c)

enlarged.

d)

blurred.

25.

A ray of light is shone on a rectangular block as shown in the diagram. The refracted ray:

a)

continues in a straight line into the glass block.

b)

is bent towards the normal.

c)

is bent away from the normal.

d)

is reflected.

26.

The type of lens used in a magnifying glass is:

a)

convex

b)

concave

c)

straight

d)

not found in the sketch

27.

Label C in this diagram is the Focal Point.

a)

Yes

b)

No

28.

The image formed in this diagram is:

a)

enlarged and virtual

b)

diminished and real

c)

enlarged and real

d)

diminished and virtual

29.

Is this statement TRUE or FALSE regarding the Law of Refraction?

The Angle of Incidence is not equal to the Angle of Refraction

a)

TRUE

b)

FALSE