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IQWST Can I believe my eyes r 1-7

Total questions: 41

Worksheet time: 25mins

Name
Class
Date
1.

How are shadows made? Choose the BEST explanation.

a)

Turning off the lights will make shadows.

b)

An object blocks the path of the light which creates an area on a surface where no light reaches.

c)

Shadows can only form at night or with flashlights.

d)

Turn your back to the sun and a shadow will form behind you.

2.

True or False. When shinning the flahlight at the mirror, the readings were the highest when the light and the light sensor were on the same line position number making a “V.”

a)

True

b)

False

3.

True or False. When shinning the flahlight at the mirror, the readings were the same at every number and didn’t change when we moved the flashlight.

a)

True

b)

False

4.

True or False. When shinning the flahlight at the mirror, the sensor readings were usually low at all positions, except for immediately opposite the light, where the readings were very high.

a)

True

b)

False

5.

Why are the light sensor readings of the light reflected from the paper pretty much all the same at every position? Select the BEST explanation.

a)

The paper does not reflect any light from the flashlight.

b)

There was something wrong with the sensor there should be one position with a much higher reading.

c)

The light from the flashlight gets scattered in every direction.

d)

The paper absorbs most of the light from the flashlight.

6.

What type of surface does the model show light bouncing off?

a)

Rough

b)

Smooth

c)

Transparent

7.

What is similar and different about seeing an object and seeing a shadow? SELECT ALL THAT APPLY.

a)

There is no difference between seeing a shadow and seeing an object.

b)

Both require light to be bounced from something to my eyes.

c)

My eyes see the light coming from the area around a shadow; they do not see the shadow directly.

d)

The shadow reflects dark colored light.

8.
Which part of the eye absorbs the light?
a)
Retina
b)
Pupil
c)
Optic Nerve
9.
Which part of the eye allows light to pass through?
a)
Retina
b)
Pupil
c)
Optic Nerve
10.
Which part of the eye focuses the light?
a)
Lens
b)
Retina
c)
Cornea
11.
Which part of the eye carries the message to the brain?
a)
Retina
b)
Optic Nerve
c)
Pupil
d)
None of the above
12.
Which part of the eye carries the message to the brain?
a)
Retina
b)
Optic Nerve
c)
Pupil
d)
None of the above
13.
In order to see an object, we need:
a)
Light, object, eyes, clear path
b)
Light, eyes, clear path
c)
Object, eyes, clear path
d)
Eyes, object, blocked path, light
14.
How does light travel?
a)
In a straight path and in every direction
b)
In a car
c)
in curvy paths
d)
Teleportation
15.
An object that I can see perfectly through is:
a)
Transparent
b)
Translucent
c)
Opaque
16.
An object that allows some light to pass through is:
a)
Transparent
b)
Translucent
c)
Opaque
17.
An object that blocks all light and images is:
a)
Transparent
b)
Translucent
c)
Opaque
18.
Why does it feel so much warmer on a sunny day?
a)
Because the sun is a giant ball of fire
b)
Because our shirts absorb light
c)
Because our skin and clothes absorb light
d)
None of the above
19.

When you are in a dark place, your pupil gets _______

a)

smaller

b)

blacker

c)

larger

d)

normal

20.

What two things do you need to create a shadow?

a)

an object and light

b)

a tree and a car

c)

two people

d)

a flashlight and eyes

21.

Light must enter a _______ (or your eye) to be detected or seen

a)

door

b)

room

c)

sensor

d)

phone

22.

A shadow is created behind the object by blocking the

a)

object

b)

light path

c)

eye

d)

shadow

23.

Scattering occurs when light bounces off a _______ surface in ________ directions

a)

rough , different

b)

smooth , different

c)

rough , similar

d)

smooth , similar

24.

Some objects are ________ and let light pass through them (transmit)

a)

big

b)

small

c)

transparent

d)

translucent

25.

Reflection occurs when there is something facing a

a)

piece of paper

b)

mirror or glass

c)

window

d)

computer

26.

Scattering occurs when light or an object faces

a)

a flashlight

b)

a mirror

c)

your eye

d)

a piece of paper

27.

Check all that are in the human eye:

a)

iris

b)

bones

c)

pupil

d)

tissue

28.
When light is taken in by something we call it
a)
Absorption
b)
Scattering
c)
Reflection
d)
Transmission
29.
What type of surface scatters light
a)
A smooth surface
b)
A rough surface
c)
Only wood
d)
A big surface
30.
When light passes through an object we call it 
a)
Reflection
b)
Absorption
c)
Scattering
d)
Transmission
31.
Models
a)
Have one perfect model
b)
Can be different with advantages and disadvantages
c)
Don't change
d)
Have to be physical
32.

The illustration shows a light ray striking an object. In the illustration, the light striking the object is –

a)

absorbed.

b)

stopped.

c)

reflected.

d)

refracted.

33.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
34.
Which images are opaque?
a)
A & C
b)
A,C,E, & F
c)
D, E, & F
d)
A & E
35.
When light reflects it
a)
Bounces off a smooth surface in all directions
b)
Bounces off a smooth surface at the same angle
c)
Bounces off a rough surface in all directions
d)
Bounces off a rough surface at the same angle
36.
When light reaches a window, most of the light will
a)
Transmit and a little reflect
b)
Reflect and a little transmit
c)
Reflect and a little absorb
d)
Absorb and a little scatter
37.
What is this
a)
opaque
b)
transparent
c)
translucent
38.
What is this
a)
transparent
b)
translucent
c)
opaque
39.
The water is what
a)
opaque
b)
translucent
c)
transparent
40.
What is this
a)
translucent
b)
transparent
c)
opaque
41.

To stay cool from the sun's light and heat, one should wear...

a)

Dark colors

b)

Light colors