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F2 Integrated Science Mid-Term Exam

Total questions: 75

Worksheet time: 56mins

Name
Class
Date
1.

Opaque means...

a)

No light passes through it

b)

All light passes through it

c)

Some light passes through it

2.

Blurs light as it passes through

a)

Transparent

b)

Translucent

c)

Opaque

d)

Refraction

3.

The term for any wave that hits a surface and bounces off

a)

Translucent

b)

Transparent

c)

Refraction

d)

Reflection

4.

The picture that represents the eclipse of the sun is

a)

A

b)

B

c)

A and B

d)

no one

5.

Which color absorbs ALL light colors?

a)

yellow

b)

white

c)

black

d)

red

6.

Transparent

a)

A material that allows some light to pass through it

b)

a material that allows light to pass through it

7.

Things make shadows because they ______ light.

a)

BLOCK

b)

PASS

8.

What happens when light hits an object?

a)

Some of the light jumps in different directions

(bounces)

b)

Some of the light gets absorbed by the object.

c)

Some of the light bounces back to your eye

d)

ALL of them.

9.

Light does travel in a straight line.

State - True or False

a)

True

b)

False

c)

Depends

10.

Which of the following is a source of light

a)

Eye

b)

Mirror

c)

Fire

d)

the moon

11.

When light bounces of a mirror,it is

a)

Reflected

b)

Corrected

c)

Absorbed

d)

Refracted

12.

The picture shows an area of Yosemite National Park.Which statement about light is supported by this picture?

a)

Light travels in a straight line until it enters a definite material like water in a lake

b)

Light can refract in air and in clean water

c)

The water in a lake is blue because light forms an image

d)

Light is reflected off the smooth surface of the lake

13.

This is an example of

a)

Reflection

b)

Refraction

c)

Absorption

d)

None of the above

14.

What happen to the light as it passess from air to the transparent window

a)

Light changes speed but not direction

b)

All light is reflected

c)

Light changes speed and direction

d)

All light pass through

15.

Latif wakes up one morning and sees that it is foggy outside.Whcih term best describe the fog he sees

a)

Opaque

b)

Reflective

c)

Transparent

d)

Translucent

16.

Example of a luminous object

a)

Sun

b)

Moon

c)

Pencil

d)

Wall

17.

Guess the application of rectilinear propagation of light

a)

Formation of shadows suggests that light travels in a straight line

b)

Beams of search light used in a lighthouse or airport suggest that light travels in a straight line

c)

When a beam of light enters a dark room by a window we can see light traveling in a straight line

d)

Formation of day and night shows that light travels in a straight line

18.

When does the light is refracted?

a)

When light travels in a straight line

b)

When light is bounced

c)

When light travels in two different mediums

d)

When light cannot pass through an opaque object

19.

Diagram shows the condition of a spoon in a glass of water.

What can be observed about the spoon?

a)

The spoon looks bent.

b)

The water is clearer.

c)

The water level rises.

d)

Light is refracted.

20.

What is the conclusion from your observation in this picture?

a)

Light travels in a straight line

b)

Light can be refracted

c)

Light can be reflected

d)

Light can pass through a transparent material

21.

Which of the following shows that light travels in a straight line? Tick the correct answers.

a)

A

b)

B

c)

C

d)

D

e)

E

22.

Which of the following shows the principle of light refraction? Tick the correct answers.

a)

A

b)

B

c)

D

d)

E

e)

F

23.

Which of the following shows the principle of light reflection? Tick the correct answers.

a)

A

b)

B

c)

D

d)

E

e)

F

24.

What is it called when light bends as it moves from one substance to another?

a)

Absorption

b)

Reflection

c)

Refraction

d)

Incidence

25.
Why does the lower part of the child appear so much different in size from the upper part?
a)
The light rays that travel through water and then into air are refracted.
b)
The light rays that travel through water and then into air are enlarged.
c)
The light rays that travel through air and then into water are reflected.
d)
The light rays that travel through air and then into water are reduced.
26.

Lunar eclipse occurs when...

a)

sun;earth;moon come in a straight line

b)

moon;sun;earth come in a straight line

c)

pluto;earth;saturn come in a straight line

27.

What are the 3 types of beams of light?

a)

transparent, translucent,opaque

b)

luminous, point source, artificial

c)

parallel,divergent,convergent

28.

On which principle does the pinhole camera work on?

a)

calvinear propagation of light

b)

rectilinear propagation of light

29.

Solar eclipse occurs when...

a)

earth;stars;moon comes in a straight line

b)

sun;moon;earth comes in a straight line

c)

Neptune;earth;sun comes in a straight line

30.

Identify the image

a)

broken box with duct tape

b)

pinhole camera

31.

A beam of light is

a)

A bunch of rays of light grouped together

b)

A single ray of light

c)

A ray of light that is really big

d)

All light is a beam

32.

Rays of light that move away from each other are

a)

Convergent Beams

b)

Divergent Beams

c)

Parallel Beams

33.

Beams of light that move towards each other are

a)

Convergent Beams

b)

Divergent Beams

c)

Parallel Beams

34.

Beams of light that move in the same direction without ever crossing are

a)

Divergent Beams

b)

Convergent Beams

c)

Parallel Beams

35.

The light passes through the pinhole and forms an _________ image of the object on the screen

a)

Erect image

b)

Inverted image

c)

Straight image

d)

Slanting image

36.

Which of the following is/are the true statement(s) about pinhole camera. (Select all the correct answer(s).)

a)

A pinhole camera has a Translucent screen

b)

A pinhole camera has a pinhole on one side

c)

A pinhole camera does not have two boxes

37.

What is a pinhole camera?

a)

A pinhole camera is a box which help in seeing the moon.

b)

A pinhole camera is a device which helps us to see images of objects.

c)

A pinhole camera helps in taking a video.

d)

A pinhole camera helps in making food.

38.

#3 Refers to the circular structure that surrounds the pupil and regulates the amount of light entering the eye.

a)

Cornea

b)

Pupil

c)

Retina

d)

Iris

39.

#1 Refers to the clear tissue that covers the front of the eye

a)

Retina

b)

Cornea

c)

Pupil

d)

Iris

40.

#2 refers to

a)

optic nerve

b)

cornea

c)

iris

d)

pupil

41.

#7 Refers to the part of the eye that carried visual information from the eyeball to the brain

a)

lens

b)

optic nerve

c)

retina

d)

sclera

42.

# 5 refers to the layer of receptor cells at the back of the eye in which the image is focused

a)

Retina

b)

Lens

c)

Optic Nerve

d)

Lens

43.

The colorful part of the eye, controls light going into the pupil

a)

lens

b)

iris

c)

sclera

d)

retina

44.

back of the eye, takes light and changes it to nerve signals

a)

lens

b)

sclera

c)

optic nerve

d)

retina

45.

black circle, allows light to enter the eye

a)

iris

b)

pupil

c)

optic nerve

d)

retina

46.

carries messages from the eye to the brain

a)

lens

b)

vitreous humor

c)

retina

d)

optic nerve

47.

gel substance that gives the eye shape

a)

optic nerve

b)

iris

c)

vitreous humor

d)

retina

48.
When you enter a dark room, what does the pupil do
a)
get larger
b)
get smaller
49.
This part of the eye has photoreceptors called rods and cones.  They help us to see color and see at night.  It is called:
a)
optic nerve
b)
brain
c)
retina
d)
cornea
50.

Farsightedness occurs when light is focused ___________ the retina.

a)

Infront of

b)

Behind

c)

Exactly on

51.

When you are reading a book, your eyes' lenses become more _______

a)

Concave

b)

Convex

c)

Relaxed

52.

Which of the following causes NEAR-SIGHTEDNESS ?

a)

A rough lens

b)

A less-flexible lens

c)

The cornea is too curved.

53.

Which of these Diagrams represents NORMAL VISION ?

a)

A

b)

B

c)

C

d)

D

54.

Which of these Diagrams represents NEAR SIGHTEDNESS ?

a)

A

b)

B

c)

C

d)

D

55.

Which of these Diagrams represents FAR SIGHTEDNESS ?

a)

A

b)

B

c)

C

d)

D

56.

Which of these Diagrams represents ASTIGMATISM ?

a)

A

b)

B

c)

C

d)

D

57.

How can near sightedness be corrected?

a)

Using concave lens

b)

Using convex lens

c)

Using bifocal lens

58.

An image is formed on

a)

Iris

b)

Pupil

c)

Retina

d)

Cornea

59.

How can a convex lens correct farsightedness or hyperopia? The convex lens focuses images______________.

a)

A. nearer in the eye, so they fall on the retina instead of behind it.

b)

B. nearer in the eye, so they fall on the retina instead of in front it.

c)

C. farther in the eye, so they fall on the retina instead of behind it.

d)

D. forward in the eye, so they fall on the retina instead of behind it.

60.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
61.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
62.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
63.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
64.
Calculate the density of the cube.
a)
3 g/cm3
b)
4 g/cm3
c)
2 g/cm3
d)
5 g/cm3
65.
A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a
a)
lower volume than the wooden block
b)
lower density than the wooden block
c)
higher volume than the wooden block
d)
higher density than the wooden block
66.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

67.

You are given a mystery object in science class. Your teacher asks you to determine if your object is more or less dense than water. You place the object in the water and it sinks. What statement would best describe this situation?

a)

The mystery substance is denser than water.

b)

Water is denser than the mystery substance.

c)

They both have the same mass.

d)

The mystery substance must be hollow.

68.

Weight is _________.

a)

the quantity of matter in an object.

b)

the measure of an object's inertia.

c)

the force exerted by gravity on an object's mass.

d)

equal to the mass of an object.

69.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
friction 
70.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
71.
The scientific unit of weight is
a)
Kg
b)
N
c)
pounds
d)
Kgm/s
72.
The scientific unit for mass is
a)
Kg
b)
N
c)
pounds
d)
ounces
73.

What would be the weight of a 10 kg object on earth?

a)

1 N

b)

10 N

c)

0.1 N

d)

100 N

74.
Matter is anything that takes up space
a)
True
b)
False
75.
Mass measueres the amount of matter in an object
a)
True
b)
False

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