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Grade 6 Science Unit 4/Unit D

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What is the order light travels through the eye?

a)

Cornea, pupil, lens, retina

b)

Cornea, lens, pupil, retina

c)

Cornea, retina, lens, pupil

d)

Cornea, pupil, retina, lens

2.

Sound travels in _____ waves.

a)

Transverse

b)

Longitudinal

c)

Seismic

d)

Light

3.

Sonar waves are.....

a)

Waves that vibrate at right angles to the direction of the wave

b)

A higher frequency than people can hear

c)

Sound waves that reflect off an object

d)

Waves that vibrate parallel to the direction of the wave

4.

What is this wave called?

a)

Longitudinal

b)

Sound wave

c)

Seismic

d)

Transverse

5.

All waves _____ _____ not matter.

a)

Transmit, energy

b)

Transmit, sound

c)

Transmit, nothing

d)

Transmit, light

6.

The height of a wave.

a)

Crest

b)

Amplitude

c)

Trough

d)

Wavelength

7.

What does the Lens do?

a)

Controls amount of light entering the eye

b)

Converts signals to the optic nerve

c)

Focuses light onto the retina

d)

Carries info to the retina

8.

Light travels in ____ waves.

a)

Seismic

b)

Longitudinal

c)

Sound

d)

Transverse

9.

What does the pupil do?

a)

Controls amount of light entering the eye

b)

Protects the eye with a transparent layer

c)

Carries info from the retina to the brain

d)

colored part that widens and narrows the opening

10.

The amount of waves that occur in a given amount of time.

a)

Amplitude

b)

Frequency

c)

Trough

d)

Crest

11.

What is an ultrasound wave?

a)

Waves that vibrate parallel to the direction of the wave

b)

Sound waves that reflect off of an object

c)

A high frequency that people can hear

d)

Waves that vibrate at right angles to the direction of the wave

12.

How do longitudinal waves move?

a)

No designated direction

b)

Straight

c)

at right angles

d)

Parallel

13.

There are ____ main types/type of waves.

a)

2

b)

14

c)

1

d)

5

14.

Colored part that widens or narrows the opening.

a)

Pupil

b)

Iris

c)

Cornea

d)

Lens

15.

How do transverse waves move?

a)

Straight

b)

They move parallel

c)

They move in right angles

d)

They don't move

16.

Carries info from the retina to the brain.

a)

Iris

b)

Cornea

c)

Lens

d)

Optic nerve

17.

How do you measure a longitudinal wave?

a)

Compression to compression

b)

Rarefaction to rarefaction

c)

The amplitude

d)

Trough to trough

18.

Transparent layer that protects the eye

a)

Iris

b)

Cornea

c)

Retina

d)

Lens

19.

Receives images from the Lens and converts signals to the optic nerve.

a)

Corena

b)

Iris

c)

Retina

d)

Pupil

20.

What is D?

a)

Iris

b)

Lens

c)

Retina

d)

Cornea

21.

What is E?

a)

Lens

b)

Iris

c)

Optic nerve

d)

Retina

22.

What is K?

a)

Iris

b)

Retina

c)

Lens

d)

Optic nerve

23.

What is J?

a)

Cornea

b)

Retina

c)

Optic nerve

d)

Lens

24.

What is C?

a)

Optic nerve

b)

Iris

c)

Retina

d)

Sclera

25.

What is H?

a)

Ciliary muscles

b)

Sclera

c)

Lens

d)

Iris