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Worksheets

Block 4

Total questions: 64

Worksheet time: 2hrs 56mins

Name
Class
Date
1.
A rock formed from fragments of other rocks is a(n)
a)
Metamorphic Rock
b)
Sedimentary Rock
c)
Extrusive Rock
d)
Igneous Rock
2.
If heat and pressure inside the Earth cause a rock to melt, the material that formed would be
a)
Metamorphic
b)
Magma
c)
Sedimentary
d)
Igneous
3.
As lava cools and crystallizes, what type of rock will form?
a)
Sedimentary
b)
Metamorphic
c)
Extrusive Igneous
d)
Intrusive Igneous
4.
The three groups of rocks are classified by
a)
How they form
b)
Color
c)
Grain size
d)
Chemical Composition
5.
Fossils are only found in
a)
Sedimentary rocks
b)
Foliated Metamorphic rocks
c)
Igneous Rocks
d)
Nonfoliated Metamorphic rocks
6.

What is underground molten rock?

a)

Lava

b)

Magma

c)

Soil

d)

Intrusive

7.

What is aboveground molten rock?

a)

Extrusive

b)

Magma

c)

Lava

d)

Sedimentary

8.

Limestone is an example of...

a)

Sedimentary

b)

Igneous

c)

Metamorphic

9.

Sandstone is an example of...

a)

Metamorphic

b)

Sedimentary

c)

Igneous

10.

Granite is an example of...

a)

Igneous

b)

Metamorphic

c)

Sedimentary

11.

Marble is an example of...

a)

Igneous

b)

Sedimentary

c)

Metamorphic

12.

Basalt is an example of...

a)

Igneous

b)

Sedimentary

c)

Metamorphic

13.

Obsidian is an example of...

a)

Igneous

b)

Sedimentary

c)

Metamorphic

14.

When large rocks are broken down into smaller parts by physical and chemical means

a)

Weathering

b)

Erosion

c)

Both

d)

Neither

15.

The process when rocks break into smaller pieces due to exposure to natural elements is called

a)

cementation

b)

weathering

c)

sediments

16.
The name rock is given when it is broken down into smaller pieces.
a)
texture
b)
weathering
c)
sediment
d)
erosion
17.

Which rock is formed form the cooling of volcanic ash on Earth's surface?

a)

metamorphic

b)

sedimentary

c)

igneous

18.

Any rock that forms from another rock as a result of changes in heat or pressure (or both) is a:

a)

chemical rock

b)

igneous rock

c)

sedimentary rock

d)

metamorphic rock

19.
This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
20.

Which type of rock is made from lava or magma cooling?

a)

igneous

b)

sedimentary

c)

metamorphic

21.
Which type of rock is made by small bits of rock, mud, or sand compacted and cemented together?
a)
Coal
b)
igneous
c)
metamorphic
d)
sedimentary
22.

Click the statement that is true.

a)

Thermal (heat)energy transfers from the cooler object to the warmer object.

b)

Thermal (heat) energy transfers from the warmer object to the cooler object.

c)

Thermal (heat) energy does not transfer at all.

23.

What is an example of a good insulator?

a)

wood

b)

copper wiring

c)

stones

d)

concrete floor tiles

24.

What is an insulator?

a)

a material that heat moves through easily

b)

a material that heat does not move through easily

c)

a material that turns cold when heated

d)

a tool for measuring temperature

25.

What type of insulation is this?

a)

Loft insulation

b)

Cavity wall

c)

Double glazing

d)

Draught proofing

26.

What does insulation do?

a)

Slow down heat transfer out of your house

b)

100% stops heat transferring out of your house

c)

Heats your house up

27.

What doe the fibers of loft insulation do?

a)

Tickle your feet

b)

Trap air

c)

Heat the floor

28.

What type of insulation is this?

a)

Double glazing

b)

Cavity wall insulation

c)

Loft insulation

29.

Conduction happens fastest in..

a)

solids

b)

liquids

c)

gases

d)

liquids and gases

30.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
31.
Pressure decreases when the surface area over which a force is applied increases
a)
True
b)
False
32.

Atmospheric pressure increases as you climb up a tall mountain

a)

True

b)

False

33.
Which of the statements is true?
a)
The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
b)
The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
c)
The bottom of the shoe exerts the same pressure as the bottom of the boot.
34.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
35.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
36.
If the horse reared up on 2 legs what effect would it have on the pressure?
a)
it will exert half the pressure it did before
b)
it will exert the same pressure it did before
c)
it will exert twice the pressure it did before
d)
it will exert four times the pressure it did before
37.

This is an example of the everyday application of pressure in:

a)

Solids

b)

Liquids

c)

Gases

d)

Plasma

38.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

39.
What decreases as you go up in the atmosphere?
a)
Altitude
b)
Atmosphere
c)
Meteors
d)
Air Pressure
40.

How do you Calculate Pressure

a)

Force(N)/Area(m2)

b)

Force(kg)/Area(mi2)

c)

Area(m2)/Force(N)

41.

Why won't you sink in mud if you wear boots?

a)

Because the surface area is larger creating less pressure.

b)

Has air in it to keep you floating.

c)

Because the mud won't want you.

42.
We use levers to make work easier.?
a)
True
b)
False
43.
What is the anticlockwise moment acting on this crane?
a)
80,000Nm
b)
100,000Nm
c)
120,000Nm
d)
140,000Nm
44.
Unit of force.
a)
Meter
b)
Centimeter
c)
Newton
45.
What is the moment acting on the seesaw?
a)
1.6Nm
b)
15Nm
c)
16N
d)
4Nm
46.
What is the moment produced by the 15 N?
a)
15 Nm (clockwise)
b)
150 Nm (anti - clockwise)
c)
1.5 Nm (anti - clockwise)
d)
0.15 Nm (clockwise)
47.
A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?
a)
The larger person moving further away from the center.
b)
Moving the smaller person closer to the center.
c)
Moving the smaller person further from the center.
d)
Making the larger person do nothing.
48.
The easiest way to open a heavy door  is by applying the force
a)
Near the hinges
b)
In the middle of the door
c)
At the edge of the door far from the hinges
d)
At the top of the door
49.

Two masses of mass 10.0 and 6.0 kg are hung from massless strings at the end of a light rod. The rod is virtually weightless. A pivot (fulcrum) is placed off center and the system is free to rotate. If the 6.0 kg mass is 4.0 m away from the pivot, how far away is the 10.0 kg mass if the system is not rotating?

a)

0.42 m

b)

2.4 m

c)

4.8 m

d)

4.2 m

50.
A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench?
a)
7.5 Nm
b)
1.5 Nm
c)
750 Nm
d)
150 Nm
51.

A nut can be loosened more easily with

a)

a short spanner because a larger turning effect can be produced.

b)

a long spanner because a larger turning effect can be produced.

c)

a long spanner because a larger force can be produced.

d)

a short spanner because a larger force can be produced.

52.

The figure below shows a man lifting a heavy rock using a steel bar. He pushes downwards on the end of the bar with a force F.


Which pivot positions allows the force F to be as small as possible?

a)

A

b)

B

c)

C

d)

D

53.

A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?

a)

450 N

b)

350 N

c)

4.5 N

d)

200 N

54.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
55.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
56.
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.
a)
wire, iron, electric
b)
electric, wire, iron
c)
iron, electric, wire
d)
excited, hair, apple
57.
What is most likely to happen when the switch is closed?
a)
A magnetic field should be produced
b)
The nail will rust
c)
The battery will explode
d)
The wire will catch on fire
58.
How do electromagnets differ from regular magnets? 
a)
A. They  can be turned off and on 
b)
B. Their polarity can be reversed
c)
C. Their strength can be changed
d)
D. All of the above
59.
Why are paper clips attracted to magnets?
a)
They contain silver.
b)
They contain aluminum
c)
They contain tin.
d)
They contain iron. 
60.

How can the strength of an electromagnet be increased? (mark all that apply)

a)

increase the current flowing through the coil

b)

increase the number of coils

c)

add an amplifier to it

d)

put iron core inside the coil

61.

An electromagnet is a magnet that

a)

its strength can be varied and turned on and off

b)

always has a magnetic field around it

c)

has very little strength

62.

Which will heat up faster?

a)

copper

b)

granite

c)

iron

d)

basalt

63.
If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?
a)
100 mL
b)
1000 mL
c)
They both heat up at the same speed
d)
They cool down.
64.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.