Quiz about Grade 6.Sc.End Of Term 2

Question 1

What is the difference between a lens and a mirror?

Accepted Answer

A mirror reflects light while a lens refracts light.

Answer

A mirror refracts light.

Answer

A mirror bends light inward.

Answer

A mirror aborbs light outward.

Question 2

A _______ mirror is a flat, smooth mirror.

Accepted Answer

plane

Answer

spherical

Answer

convex

Answer

concave

Question 3

Objects that allow all light to shine through are called ___ .

Accepted Answer

transparent

Answer

oblique

Answer

opaque

Answer

translucent mirrors

Question 4

The natural agent that stimulates sight and makes things visible is _____ .

Accepted Answer

light

Answer

sound

Answer

a convex mirror

Answer

none of the above

Question 5

A _________ has a reflecting surface that curves inward.

Accepted Answer

concave mirror

Answer

focal point

Answer

convex mirror

Answer

sonar

Question 6

In which of the following scenarios would you see a reflection of an image?

Accepted Answer

A mirror

Answer

Glass filled with water

Answer

A waterfall

Answer

A wall

Question 7

Which of the following scenarios would refraction be observed?

Accepted Answer

A pencil placed in a glass filled with water

Answer

A pencil placed in front of mirror

Answer

A periscope

Answer

None of the above

Question 8

Which of the following would NOT sound proof a home?

Accepted Answer

Televisions turned to maximum volume.

Answer

Thick curtains hung at the window.

Answer

Gardens and plants around the home.

Answer

Floors and covered with rugs or carpets.

Question 9

Using the information below choose wether the statement is SUPPORTED or NOT SUPPORTED

There is a special film that is applied to windows that allows one-way vision from inside a building. On the outside the film appears black but it allows natural light to enter the building. Those inside the building can see outside, however, those on the outside cannot see inside the building.

STATEMENT

All windows are transparent.

Accepted Answer

Not Supported

Answer

Supported

Question 10

Using the information below choose wether the statement is SUPPORTED or NOT SUPPORTED

There is a special film that is applied to windows that allows one-way vision from inside a building. On the outside the film appears black but it allows natural light to enter the building. Those inside the building can see outside, however, those on the outside cannot see inside the building.

STATEMENT

The film absorbs all light.

Accepted Answer

Not Supported

Answer

Supported

Question 11

Using the information below choose wether the statement is SUPPORTED or NOT SUPPORTED

There is a special film that is applied to windows that allows one-way vision from inside a building. On the outside the film appears black but it allows natural light to enter the building. Those inside the building can see outside, however, those on the outside cannot see inside the building.

STATEMENT

The film is translucent.

Accepted Answer

Supported

Answer

Not Supported

Question 12

Using the information below choose wether the statement is SUPPORTED or NOT SUPPORTED

There is a special film that is applied to windows that allows one-way vision from inside a building. On the outside the film appears black but it allows natural light to enter the building. Those inside the building can see outside, however, those on the outside cannot see inside the building.

STATEMENT

The film reflects light on the inside.

Accepted Answer

Supported

Answer

Not Supported

Question 13

Using the information below choose wether the statement is SUPPORTED or NOT SUPPORTED

There is a special film that is applied to windows that allows one-way vision from inside a building. On the outside the film appears black but it allows natural light to enter the building. Those inside the building can see outside, however, those on the outside cannot see inside the building.

STATEMENT

Light from inside the building is blocked.

Accepted Answer

Supported

Answer

Not Supported

Question 14

Using the information below choose wether the statement is SUPPORTED or NOT SUPPORTED

There is a special film that is applied to windows that allows one-way vision from inside a building. On the outside the film appears black but it allows natural light to enter the building. Those inside the building can see outside, however, those on the outside cannot see inside the building.

STATEMENT

The film absorbs sunlight.

Accepted Answer

Not Supported

Answer

Supported

Question 15

Identify each statement as True or False.

STATEMENT

Light and sound can travel through all three states of matter.

Accepted Answer

False

Answer

True

Question 16

Identify each statement as True or False.

STATEMENT

Unlike sound, light can be seen.

Accepted Answer

True

Answer

False

Question 17

Identify each statement as True or False.

STATEMENT

Sound travels fastest through metals but light travels fastest through air.

Accepted Answer

True

Answer

False

Question 18

Identify each statement as True or False.

STATEMENT

Sound and light both have good reflectors and poor reflectors.

Accepted Answer

False

Answer

True

Question 19

Which one of the following factors determines the pitch of a sound?

Accepted Answer

the frequency of the sound wave

Answer

the amplitude of the sound wave

Answer

the distance of the sound wave from the source

Answer

the wavelength of the sound wave

Question 20

What are sound waves?

Accepted Answer

vibrations that cause noise

Answer

vibrations you can feel

Answer

waves in the ocean crashing

Answer

vibrations you can see

Question 21

Wave B will create a sound than wave A.

Accepted Answer

louder

Answer

quieter

Answer

lower pitch

Answer

higher pitch

Question 22

A(n) _________ is created when sound waves bounce off a solid surface.

Accepted Answer

echo

Answer

bat

Answer

volume

Answer

sound wave

Question 23

Frequency refers to which of the following?

Accepted Answer

pitch

Answer

amplitude

Answer

speed of sound waves

Answer

wave length

Question 24

A sound wave with greater intensity sounds higher.

Accepted Answer

False

Answer

True

Question 25

A sound wave with greater intensity sounds higher.

Accepted Answer

False

Answer

True

Question 26

Where are sound waves changed into the electrical signals that travel to your brain?

Accepted Answer

cochlea

Answer

eardrum

Answer

hammer

Answer

stirrup

Question 27

What is the part of ear that has three bones that amplify sound waves?

Accepted Answer

inner

Answer

middle

Answer

outer

Question 28

Use the diagram of the human ear below to answer the question that follows.

Vibrates when sound hits it.

Accepted Answer

Eardrum

Answer

Pinna

Answer

Cochlea

Answer

Auditory Nerve

Question 29

Use the diagram of the human ear below to answer the question that follows.

Collects sound waves and channels them into the ear canal.

Accepted Answer

Pinna

Answer

Eardrum

Answer

Cochlea

Answer

Auditory Nerve

Question 30

Use the diagram of the human ear below to answer the question that follows.

Transfers auditory information to the brain.

Accepted Answer

Auditory Nerve

Answer

Pinna

Answer

Eardrum

Answer

Cochlea

Question 31

Use the diagram of the human ear below to answer the question that follows.

Converts vibrations into electrical signals.

Accepted Answer

Cochlea

Answer

Pinna

Answer

Eardrum

Answer

Auditory Nerve

Question 32

A shadow is formed because ____

Accepted Answer

Light is present

Answer

The objects are good reflectors

Answer

There are transparent objects

Answer

Light is absent

Question 33

Study the image below and answer the question that follows.

QUESTION

Which material is opaque?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 34

Select True or False for each statement below.

STATEMENT

The image formed on a plane mirror is at the same distance behind the mirror as the object in front of it.

Accepted Answer

True

Answer

False

Question 35

Select True or False for each statement below.

STATEMENT

Light does not change its speed or direction when travelling from one material to another.

Accepted Answer

False

Answer

True

Question 36

Select True or False for each statement below.

STATEMENT

Light is scattered when it 'bounces off' a shiny and smooth surface.

Accepted Answer

False

Answer

True

Question 37

Select True or False for each statement below.

STATEMENT

White objects appear white because they reflect all colours.

Accepted Answer

True

Answer

False

Question 38

Select True or False for each statement below.

STATEMENT

Shadows are shortest at midday.

Accepted Answer

True

Answer

False

Question 39

Study the image below and answer the question that follows.

QUESTION

What is the name of the ray labelled A?

Accepted Answer

Incoming ray

Answer

Refracted ray

Answer

Outgoing ray

Answer

Reflected ray

Question 40

Study the image below, read the statement that follows, then answer the question.

STATEMENT

A large hole has been placed in three rolls of paper. A flashlight is turned on and placed in front of the rolls of paper.

QUESTION

What property about light does this experiment demonstrate?

Accepted Answer

Light rays travel in a straight line

Answer

Light rays travel in curved lines

Answer

Light rays travel in groups of six

Answer

Light rays reflect the holes in the paper

Question 41

Study the image below, read the statement that follows, then answer the question.

STATEMENT

Paper Roll B, was removed and replaced with Paper Roll Y.

QUESTION

What will 'happen' with the light rays?

Accepted Answer

They will be absorbed Paper Roll Y.

Answer

They will be seen by the person

Answer

They will be pass through Paper Roll C as invisible light.

Answer

They will form a shadow on the roll of paper marked C.

Question 42

You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?

Accepted Answer

sound waves reflecting off smooth, flat surfaces throughout the house

Answer

sound waves moving around the large rooms

Answer

sound waves moving slowly through air

Answer

sound waves refracting around corners in the empty rooms

Question 43

Cletus wants to make ear protectors for people who work around loud jet engines at Hartsfield Airport in Atlanta. Which of the following materials should he experiment with for the best results?

Accepted Answer

a material that absorbs sound

Answer

a material that produces sound

Answer

a material that transmits sound

Answer

a material that amplifies sound

Question 44

Which of the following would you hear as a low pitched sound?

Accepted Answer

sound wave with a frequency of 50 Hz

Answer

sound wave with frequency of 10,000 Hz

Answer

sound wave with an intensity of 10 dB

Answer

sound wave with an intensity of 100 dB

Question 45

When light bounces off an object- If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface.

Accepted Answer

reflection

Answer

refraction

Answer

diffusion

Question 46

This drawing illustrates the ________________________ of a light wave.

Accepted Answer

refraction

Answer

reflection

Answer

diffraction

Answer

dispersion

Question 47

Sound that affects the quality and/or health of human life

Accepted Answer

Noise pollution

Answer

Light pollution

Answer

Air pollution

Answer

Acid shock

Question 48

Tick examples of noise pollution

Accepted Answer

A boy shouting in a loudspeaker

Accepted Answer

Fighting in a conference meeting

Answer

chirping of birds

Answer

Sound of ocean waves

Question 49

Relocating noise producing industries such as, factories and airports from residential areas will prevent noise pollution.

Accepted Answer

True

Answer

False

Question 50

What of the following best defines Noise Pollution?

Accepted Answer

Continuous irregular vibrations that is harmful to health.

Answer

Unwanted noise

Answer

Excess noise produced by humans

Answer

Unwanted noise that is harmful to ALL forms of life.

Question 51

Human hearing frequency range is

Accepted Answer

20-20,000 Hz

Answer

60-60,000 Hz

Answer

80-100 dBA

Answer

1. 10-10,000 W/m²

Question 52

Noise pollution can cause

Accepted Answer

All of the above

Answer

high blood pressure.

Answer

loss of sleep.

Answer

hearing loss.

Question 53

Animals in water can also be affected by Noise.

Accepted Answer

True

Answer

False

Answer

none of the above

Question 54

Blaring Loud Speakers are examples of...

Accepted Answer

Noise Pollution

Answer

Air Pollution

Answer

Land Pollution

Answer

Water Pollution

Question 55

We should plant more trees to fight pollution.

Accepted Answer

True

Answer

False

Question 56

______ is an unwanted sound that is harmful to people and animals.

Accepted Answer

Noise pollution

Answer

Air pollution

Answer

Water Pollution

Answer

Land Pollution

Question 57

One of these types of Pollution is invisible( cannot be seen).

Accepted Answer

Noise Pollution

Answer

Air Pollution

Answer

Land Pollution

Answer

Water Pollution

Question 58

Another effect of Noise pollution is _______________

Accepted Answer

Hearing Loss

Answer

Fever

Answer

Malaria

Grade 6.Sc.End Of Term 2

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