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Stage 7-8 Magnetism, Rocks and the Earth

Total questions: 72

Worksheet time: 44mins

Name
Class
Date
1.

Which type of rock is formed from the solidification of magma or lava?

a)

igneous

b)

sedimentary

c)

metamorphic

d)

bioclastic

2.

Which layer is the thinnest layer of the Earth?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

3.

This layer of the Earth is known to be heavy in the elements nickel and iron:

a)

Core

b)

Crust

c)

Mantle

4.
Earthquakes occur in the _____________.
a)
crust
b)
mantle
c)
inner core
d)
outer co
5.
A(n)  _____________ is the result of tectonic plates moving over a hot spot.
a)
plateau
b)
island
c)
canyon
d)
delta
6.
Which two metals are thought to be found in the core?
a)
iron and steel
b)
iron and nickel
c)
gold and silver
d)
iron and copper
7.
What is the core made of?
a)
Molten rock
b)
Solid rock
c)
Molten metal
d)
Solid metal
8.
Which is the hottest part of the Earth?
a)
The core
b)
The mantle
c)
The crust
d)
The Asthenosphere
9.
What do we call the center of the Earth?
a)
Mantle
b)
Crust
c)
Apple
d)
Core
10.

Look at the picture carefully.

Which screws will be attracted?

a)

iron and steel screws

b)

iron and aluminum screws

c)

steel and aluminum screws

d)

all screws

11.

What would happen when two north poles of magnets are placed together?

a)

The force will pull them together (attract).

b)

The force will push them away from each other (repel).

c)

The strength of the magnet is doubled.

12.

What would happen when the opposite poles of magnets are placed together?

a)

The force will pull them together (attract).

b)

The force will push them away from each other (repel).

c)

The strength of the magnet is doubled.

13.

True or False: All metals are attracted to magnet.

a)

True

b)

False

14.

Where is the force of attraction the strongest on a magnet?

a)

above the magnet

b)

below the magnet

c)

at the poles

d)

in the middle

15.

What do the lines around this magnet represent?

a)

North Pole

b)

South Pole

c)

Magnetic Declination

d)

Magnetic Field

16.

If you cut a magnet in half, what happens to the poles?

a)

One half gets the North Pole, the other half gets the South Pole.

b)

Both halves get only a South Pole.

c)

Both halves get only a North Pole.

d)

Both halves get a North pole and a South Pole.

17.

What is responsible for the Magnetic Field around Earth?

a)

The Sun

b)

The Earth's core

c)

The Earth's crust

d)

The Earth's mantle

18.

Which of the following objects will not be attracted to a magnet?

a)

fridge

b)

wooden bowl

c)

microwave

d)

cooking pot

19.

Look at the picture carefully.

The paper clips are . . .

a)

magnet

b)

magnetic objects

20.

Which has a STRONGER force of gravity, the Earth or the Moon?

a)

Earth

b)

Moon

21.

Which statement about gravity is true?

a)

gravity causes objects to pull towards one another

b)

gravity causes objects to push away from each other

c)

gravity only takes place between planets

d)

the moon doesn't have any gravity

22.

Unlike poles of different magnets

a)

attract each other

b)

cancel each other out

c)

repel each other

23.

Which of the following would be an example of an insulator?

a)

iron

b)

aluminum

c)

rubber

d)

silver

24.

Which one describes a magnetic field?

a)

a measure of the force that pushes two magnets away from each other

b)

a region around a magnet in which you can measure magnetic forces.

c)

the invisible region only around the north pole of the magnet.

d)

the invisible region only around the south pole of the magnet.

25.

Which method of charging is this: "Charging by rubbing two objects"

a)

friction

b)

contact

c)

induction

26.

Protons have a ____________ charge and Electrons have a _______________ charge.

a)

Positive, Positive

b)

Positive, Negative

c)

Negative, Positive

d)

Negative, Negative

27.

What are the invisible lines called around this model?

a)

Electric Field Lines

b)

Magnetic Field Lines

c)

Lettuce Seeds

28.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
29.
When you charge an electroscope by touching it with a charged balloon, the process is called _____.
a)
friction
b)
conduction
c)
induction
d)
grounding
30.
A neutral object becomes negatively charged when it loses electrons.
a)
true
b)
false
31.
Conduction is the process of charging an object without touching it.
a)
true
b)
false
32.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
33.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
34.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
35.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
36.
An electromagnet's poles may be reversed by:
a)
decreasing the voltage of the coil
b)
increasing the number of coils
c)
changing the direction of current flow
d)
altering the material used to make the coils
37.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
38.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
39.

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

a)

The magnetic field

b)

The electrostatic field

c)

The piezoelectric effect

d)

The chemical reaction of the magnet and the filings

40.
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
41.
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
42.
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.
43.

Magnets on refrigerator cannot be turned off. Which type of magnets they belong?

a)

electromagnets

b)

battery

c)

permanent magnets

d)

copper wire

44.

What are the components of the electromagnets?

a)

battery, wire and bulb

b)

battery , copper wire and plastic bottle

c)

battery, copper wire and iron nail

d)

battery, wire and aluminum

45.

What would happen if you took one end of the wire off the battery?

a)

The nail will be a magnet.

b)

The nail would no longer be a magnet

c)

Nothing will happened.

d)

The nail will heats up.

46.

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

47.

Which electromagnet is stronger?

a)

A

b)

B

48.

Which electromagnet is stronger?

a)

A

b)

B

49.

Name the element

a)

Hydrogen

b)

Helium

c)

Heryllium

d)

Hassium

50.

Name the element

(a)  

51.

In which group is "Xe" in?

(a)  

52.

What is the symbol of Astatine?

a)

At

b)

As

c)

Ae

d)

An

53.

What is the symbol of Antimony?

a)

At

b)

An

c)

Sb

d)

St

54.

In which group does Germanium situated in?

a)

13

b)

14

c)

15

d)

16

55.

Name the symbol "Fr"

(a)  

56.

What is the name of Uuo?

a)

Ununpentium

b)

Ununoctium

c)

Ununseptium

d)

Ununtrium

57.

Which is the symbol of Polonium?

a)

Pm

b)

Pn

c)

Pl

d)

Po

58.

What does 'In' stands for?

a)

Iodine

b)

Yttrium

c)

Iridium

d)

Indium

59.

Spell the name of the element 'Cl'

(a)  

60.

Which of the following is a metal?

a)

Boron

b)

Carbon

c)

Caesium

d)

Tellerium

61.

Rb stands for...?

a)

Radium

b)

Rubidium

c)

Radon

d)

Rhodium

62.

Which of the following is the group 2 element?

a)

Sr

b)

Sc

c)

Si

d)

Sn

63.

What is the symbol of Argon?

(a)  

64.

The symbol 'S' stands for?

a)

Silicon

b)

Sulphur

c)

Tin

d)

Scandium

65.

What is the symbol of Gallium?

a)

G

b)

Ga

c)

Gl

d)

Gm

66.

K stands for what element?

(a)  

67.

What is the symbol of lead?

a)

Sn

b)

Pb

c)

As

d)

Lv

68.

Sr stands for which element?

a)

Strontium

b)

Strontinum

c)

Strotium

d)

Strotinium

69.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
70.

The chemical symbol in this element box is

a)

26

b)

Fe

c)

Iron

d)

55.845

71.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
72.

Which noble gas has 18 protons?

a)

Helium

b)

Hydrogen

c)

Argon

d)

Calcium

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