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how can we see things

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the lens in your eyes' job?

a)

To send messages down the optic nerve to your brain

b)

To focus on the gray and black colors through your retina

c)

To focus light on the front of your eye so you can see things clearly

d)

To focus light on the back of your eye so you can see things clearly

2.

what is light?

a)

energy that you can see

b)

energy used for heat

c)

is just an energy

d)

light is light of course

3.

what objects are luminous objects?

a)

the sun

b)

light bulb

c)

stars

d)

mars

4.

Our eyes have to receive _________ in order for us to see. It is also can not give out this thing.

a)

heat

b)

sound

c)

light

d)

magnetism

5.

The keeper can catch the soccer ball easily because he can see it clearly. It happens because

a)

the light reflected by the keeper to the soccer ball

b)

the light reflected by the keeper to the keeper eyes

c)

the light reflected by the soccer ball to the keeper eyes

d)

the light reflected by the soccer ball to the soccer ball

6.

How does light behave when hitting this shirt?

a)

Yellow is absorbed; all other colors are reflected.

b)

Yellow is reflected; all other colors are absorbed.

c)

All colors are absorbed, but yellow is refracted.

d)

Yellow is scattered and all other colors are absorbed.

7.

Which of the following are light sources? - there can be more than one correct answer

a)
b)
c)
d)
e)
8.

We can see objects because light travels from our eyes to the object?

a)

True

b)

False

9.

The bouncing back of light off an object is ...

a)

Absorption

b)

Reflection

c)

Refraction

10.

Which of the following are natural light sources? - multiple answers allowed

a)

Moon

b)

Sun

c)

Stars

d)

Torch