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Science year 8 - Term 4

Total questions: 122

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

What type of energy is in this picture?

a)

Kinetic

b)

Potential

c)

Chemical

d)

Sound

2.

The kind of energy an object has when it is NOT moving is called______________.

a)

mechanical

b)

force

c)

gravity

d)

stored

3.

Energy that flows through wires

a)

electricity

b)

work

c)

mechanical

d)

stored

4.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

c)

none of the above

d)

all of the above

5.

What kind of energy is in a rock at the edge of a cliff?

a)

Potential

b)

Kinetic

c)

Both potential and kinetic energy

d)

none of the above

6.

Energy can be _____________ or changed from one type to another.

a)

destroyed

b)

transferred

c)

created

d)

ignored

7.

A moving car.

a)

Potential

b)

Kinetic

8.

Can energy be destroyed?

a)

True

b)

False

9.

Can energy be transferred?

a)

True

b)

False

10.

Which of the following is a fossil fuel?

a)

Wind

b)

Coal

c)

Solar

d)

Biomass

11.

When you turn on a light switch, ________ energy changes into ________ energy.

a)

sound / light

b)

electrical / light

c)

light / thermal

d)

electrical / sound

12.

Fossil fuels are considered nonrenewable resources because of -

a)

Where they come from

b)

How they are produced

c)

How useful they are

d)

How long they take to form

13.

Which energy is made when objects vibrate?

a)

heat

b)

sound

c)

light

14.

What is energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

The ability to do work.

15.

What is potential energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

non renewable energy

16.

What is kinetic energy?

a)

moving energy

b)

potential energy

c)

stored energy

d)

renewable energy

17.

What is NOT a renewable energy source?

a)

coal

b)

wind

c)

solar

d)

water

18.

Which is NOT a non-renewable energy source?

a)

coal

b)

oil

c)

wind

d)

gas

19.

What does it mean to process or refine an energy resource?

a)

to transport

b)

to clean

c)

to sell

d)

to extract

20.

Which of these things is an example of potential energy?

a)

a car motor

b)

firewood

c)

battery

d)

a fan

21.

Which of these things are examples of renewable energy sources?

a)

wind

b)

solar

c)

water

d)

oil

22.

Click all of the things that are non-renewable energy sources.

a)

oil

b)

gas

c)

coal

d)

water

23.

Which of these is an example of kinetic energy?

a)

a bicycle

b)

a battery

c)

a solar panel

d)

firewood

24.

Kinetic energy is the energy that an object has due to its ________

a)

Motion

b)

Ability

c)

Force

d)

None of the Above

25.

If an object is moving at the same velocity that another one, it will have _____ kinetic energy (assuming both have the same mass).

a)

higher

b)

less

c)

the same

d)

None of the above

26.

A truck and a bicycle are traveling at the same speed, which has the most kinetic energy?

a)

Truck

b)

Bicycle

c)

It is the same

d)

None of the above

27.

Gravitational potential energy is the energy that is stored in an object due to its _________.

a)

Motion

b)

Ability

c)

Position

d)

None of the Above

28.

The standard unit for measuring potential energy is the _____.

a)

Newton

b)

Newton/metter

c)

Joule

d)

None of the above

29.

To calculate the gravitational potential energy, we use the following equation:

a)

mass * acceleration of gravity

b)

acceleration of gravity * height

c)

mass * acceleration of gravity * height

d)

None of the above

30.

The following equation is used to describe work: Work = Force * distance.

a)

True

b)

False

31.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
32.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
33.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
34.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
35.
Elastic potential energy is energy stored in object that are compressed or __________. 
a)
movement
b)
stored
c)
harnessed
d)
pulled 
36.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
37.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
38.

Energy due to motion is ____________ energy.

a)

Potential

b)

Energy

c)

Kinetic

d)

Friction

39.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
40.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and speed
d)
time and work
41.
Choose the BEST answer that is an example of an energy transformation from potential energy to kinetic energy.
a)
a ball rolling down a ramp
b)
a picture hanging on the wall
c)
a swing swaying back and forth
d)
a coat hanging on a hook
42.
Can energy be changed?
a)
yes
b)
no
43.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
44.
 Energy from the sun is known as......... 
a)
hydroelectric energy
b)
geothermal energy
c)
solar energy
d)
wind energy
45.
The careful use of a resource is....
a)
recycling
b)
pollution
c)
depositing
d)
conservation
46.

Energy is...

a)

feeling good

b)

the ability to do work or cause change

c)

the food chain

d)

looking at TV until you fall asleep

47.

Energy of motion is...

a)

when an object is moving

b)

light you can see

c)

a sound you hear

d)

all around us

48.

Sound energy is

a)

when an object is moving

b)

light you can see

c)

a sound you hear

d)

moves from hot to cold

49.

Heat energy...

a)

when an object is moving

b)

light you can see

c)

a sound you hear

d)

moves from hot to cold

50.

Light energy is...

a)

when an object is moving

b)

a light you can see

c)

a sound you hear

d)

moves from hot to cold

51.

Electrical energy is...

a)

a food chain

b)

you napping

c)

can travel through wires

d)

the sun

52.

Kinetic energy is...

a)

energy of a moving object

b)

you napping

c)

you at rest

d)

being still

53.

Potential energy is...

a)

energy of a moving object

b)

stored energy while you are resting

c)

you running around

d)

being active on the playground

54.

Mechanical energy is...

a)

energy of a moving object/machine

b)

stored energy while you are resting

c)

cats napping

d)

hibernation

55.

Solar energy...

a)

comes from water

b)

comes from the wind blowing

c)

comes from the foods you eat

d)

comes from the sun

56.

Wind energy...

a)

comes from water

b)

comes from the wind blowing

c)

comes from the foods you eat

d)

comes from the sun

57.

Water energy...

a)

comes from the movement of water

b)

comes from the wind blowing

c)

comes from the foods you eat

d)

comes from the sun

58.

Electrical energy can ...

a)

become heat energy

b)

become light energy

c)

become sound energy

d)

becomes food you eat

59.

What type of energy is elastic energy?

a)

Kinetic Energy

b)

Potential Energy

c)

Chemical Energy

d)

Mechanical Energy

60.

____________________ is the storage of energy

a)

Chemical Energy

b)

Potential Energy

c)

Mechanical Energy

d)

Kinetic Energy

61.

Trees are renewable resources.

a)

True

b)

False

62.

Coal is a renewable resource.

a)

True

b)

False

63.

Wind is a renewable resource.

a)

True

b)

False

64.

Oil is a renewable resource.

a)

True

b)

False

65.

Rocks are renewable resources.

a)

True

b)

False

66.

Water is a renewable resource.

a)

True

b)

False

67.

The sun is a renewable resource.

a)

True

b)

False

68.

Gold is a renewable resource.

a)

True

b)

False

69.

Which is NOT true about renewable resources

a)

There is an never-ending supply of renewable resources.

b)

All renewable resources can be used to keep the earth cleaner.

c)

Using renewable resources can keep the environment more healthy.

d)

All renewable resources are bad for the environment.

70.

Natural resources form in nature. Which of the following is NOT a natural resource?

a)

oil

b)

coal

c)

plastic

d)

water

71.
__________ is an energy resource that WILL NOT run out in the next several hundred years.
a)
Renewable Energy Resource
b)
Nonrenewable Energy Resource
72.
__________ is an energy resource that WILL NOT run out in the next several hundred years.
a)
Renewable Energy Resource
b)
Nonrenewable Energy Resource
73.

Steel generally speaking is made of

a)

iron and carbon

b)

copper and iron

c)

tin and carbon

d)

aluminum and nickel

74.

Brass is an alloy made of

a)

copper and zinc

b)

copper and tin

c)

copper and nickel

d)

copper and aluminum

75.

Bronze is an alloy made of

a)

aluminum and magnesium

b)

copper and tin

c)

lead and tin

d)

copper and nickel

76.

An alloy normally used in aircraft construction

a)

Hard Steel

b)

Pewter

c)

Magnalium

d)

Solder

77.

Coin metals are normally made of this alloy

a)

pewter

b)

duralumin

c)

cupro-nickel

d)

brass

78.

Iron can be extracted from iron ore by using a blast furnace and the process of smelting

a)

True

b)

False

79.

Ferrous metals contain iron and never rust

a)

True

b)

False

80.
Is this an example of corrosion?
a)
Yes
b)
No
81.

What is the chemical name given to Rust ?

a)

Iron dioxide

b)

Steel oxide

c)

Iron oxide

d)

Carbon dioxide

82.

Rusting can be prevented by

a)

Alloying

b)

Tinning

c)

Galvanizing

d)

All of above

83.
What is corrosion?
a)
The release of oxygen
b)
Breakdown of a metal
84.
Iron rust in the presence of:
a)
Vacuum
b)
Moisture
c)
Oxygen
d)
Moisture and Oxygen
85.
To protect iron against corrosion, the most durable metal plating on it, is:
a)
Zinc plating
b)
Nickel plating
86.

What is the chemical nature of rust?

a)

iron (II) oxide

b)

hydrated iron (II) oxide

c)

iron (III) oxide

d)

hydrated iron(III) oxide

87.

Which diagram shows the most favourable conditions for rust to appear on the nail?

a)

A

b)

B

c)

C

d)

D

88.

How many bonds will a C atom form?

a)

1

b)

2

c)

3

d)

4

89.

Which of these element(s) will C form bonds with?

a)

C

b)

H

c)

O

d)

N

e)

all of these

90.

6 Carbon atoms can form many different compounds.

a)

TRUE

b)

FALSE

91.

Carbon is ...

a)

the basic element that is part of all organic compounds.

b)

the basic element of all molecules

c)

the simples molecules of life.

92.

Carbon is...

a)

a metallic element

b)

a non-metallic element

c)

an acid

93.

Carbon is in group...

a)

1

b)

3

c)

10

d)

14

94.

Other elements of the group of Carbon are...

a)

Silicon, Geranium

b)

Cupper, Cobalt

c)

Zinc, Sodium

95.

The scientific term for “water-loving” is:

a)

Hydrophilic

b)

Hydrochloric

c)

Hydrophobic

d)

Hydrologic

96.

A membrane is a flexible outer layer found on:

a)

Bacteria

b)

The corona virus only

c)

Human cells, bacteria and some viruses

d)

Soap

97.

Shield Volcanos are

a)

tall and pointed

b)

small and pointed

c)

low and spread out

98.

Where is the ring of fire

a)

around South America

b)

around the Atlantic Ocean

c)

around Africa

d)

around the Pacific Ocean

99.

Lava and Magma

a)

are different types of volcanic rock

b)

are the same but lava is out of the ground

c)

are the same but magma is out of the ground

d)

lava is denser than magma

100.

Tectonic plates

a)

only have volcanos on the edges

b)

can have volcanos in the middle

101.

A molten mixture of rock forming substances, gases, and water, from the mantle is called _____________________

a)

magma

b)

lava

c)

hot spot

d)

dormant

102.

What is a volcano?

a)

A mountain that has lava all over it

b)

A giant hill filled with magma

c)

A long high sea wave

d)

A hole in the Earth where magma erupts

103.
This is the name for the chain of volcanos around the edge of the Pacific Plate.
a)
Circle of Fire
b)
Ring of Lava
c)
Ring of Fire
d)
Circle of Magma
104.

Weathering is the process of -

a)

Moving sediment from one place to another

b)

Dropping or leaving sediment in a location

c)

Breaking down rocks into sediment

105.

An example of chemical weathering is -

a)

Ice wedging

b)

Oxidation

c)

Animals burrowing

d)

Crashing waves

106.

What is the process of moving sediments from location to another?

a)

Deposition

b)

Erosion

c)

Weathering

d)

Compaction

107.
What is sediment?
a)
the process of rocks being broken down and carried away
b)
bits of rock, sand, and silt caused by the weathering of rocks
c)
the top layer of the soil
d)
decaying plant or animal material 
108.

Which of these is an example of erosion?

a)

Light shinning onto a mountain

b)

Rain breaking down rock

c)

Wind blowing away sediment

d)

All of the above

109.
Which agents  break down earth materials?
a)
wind only
b)
earthquakes and gravity
c)
ice and 007
d)
wind, water, and ice
110.

Rain washing away soil from a hillside

a)

Weathering

b)

Erosion

c)

Deposition

111.

NAME THE TYPES OF SEDIMENTARY ROCKS ?

a)

SANDSTONE , CONGLOMERATE , SHALE , LIMESTONE AND GYPSUM

b)

MARBLE , SLATE , OBSIDIAN AND PUMICE

c)

ANIMAL FOSSIL

d)

PLANT FOSSIL

112.

WHICH IS NOT A SEDIMENTARY ROCK ?

a)

SHALE

b)

OBSIDIAN

c)

IGNEOUS ROCK

d)

GYPSUM ROCK

113.
What are plastics made of?
a)
rubber
b)
trees
c)
oil
d)
salt
114.
How long does it take for plastics to deteriorate?
a)
10 years
b)
100 years
c)
100 years
d)
they never go away
115.
Why do you think people use plastic for their products ?
a)
Because it's strong
b)
Because its very cheap and it's easy to make
c)
Because it's expensive
d)
Because it's rare and it's good for the enviorment
116.
How many tons of plastic are produced each year?
a)
300,000 Tons
b)
300,000,000 Tons
c)
300 Tons
d)
50,000,000 Tons
117.

Which of these is a cheap and easily available material?

a)

Glass

b)

Plastic

c)

Diamond

118.

What is Plastic?

a)

Inorganic substance

b)

Element

c)

Polymer

119.

Which of these is a use of plastic?

a)

For making jewellery

b)

For making bulb

c)

For making toothbrush handle

120.

Which of these is a type of plastic that melts on heating?

a)

Thermoplastic

b)

Thermosetting

c)

Elastomer

121.

Which of these is a type of plastic that does not melt on heating?

a)

Thermoplastic

b)

Thermosetting

c)

Elastomer

122.

A chain of repeating units (called monomers)

a)

monomer

b)

dimer

c)

replicate

d)

polymer

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