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WorksheetsHalfway There Review!
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
The strongest parts of a magnet are called the________.
a)
Needles
b)
Poles
c)
Ends
d)
Orientation
2.
What is and electron?
a)
A positively charges particle inside atoms
b)
A negatively charged particle circling the atoms nucleus
c)
A neutral partial in the center of the atom
d)
An electrical charge surrounding an atom
3.
What will happen if you try to connect the south pole of a magnet with the south pole of another magnet?
a)
They will be attracted to eachother
b)
They will be magnetized
c)
They will repel each other
d)
They with hover in mid air
4.
What causes magnetism?
a)
They movement of electrons within certain metals
b)
The movement of protons within certain metals
c)
An invisible force felt throughout the universe
d)
The transfer of electrons between objects
5.
The expression "opposites attract" refers to what rule of magnetism?
a)
North pole and North pole will repel each other
b)
Opposite poles are attracted to each other (they stick!)
c)
Opposite poles tend to date before they get married
d)
North pole and south pole repel each other
6.
Which materials are magnetic, or can be magnetized?
a)
Iron, chromium, zinc
b)
Steel, cobalt, iron
c)
Zinc, copper, nickel
d)
Iron, nickel, cobalt
7.
What is the greatest factor affecting the strength of magnets? (most easily observable)
a)
Time
b)
Size of the magnet
c)
Distance from the object (proximity)
d)
Quality manufacturing
8.
What does it mean when magnetic fields bunch together?
a)
The field is weaker there
b)
The field is fading away
c)
The field is irregular
d)
The field is strongest
9.
Charges can be _________.
a)
- or +
b)
Only +
c)
Always -
d)
=
10.
Is it possible for magnetic fields to cross each other?
a)
Yes
b)
Maybe
c)
Never
d)
Always
11.
How is static electricity created?
a)
By the swaping of protons and electrons between objects
b)
By the transfer of electrical energy in the air
c)
By the transfer of electrons from on object to another
d)
By the movement of atoms
12.
When and object is negatively charged it has _____________.
a)
More protons than electrons
b)
More electrons than protons
c)
More electrical charge than magnetic force
d)
Less energy than it had before
13.
When two opposite charges interact what happens?
a)
They repel each other, explosion!
b)
They do nothing, boring
c)
They are attracted and create electricity
d)
They switch charges, - becomes +, + becomes -
14.
How does rubbing a balloon against your hair create static electricity?
a)
By using conduction it adds protons to the balloon
b)
By Stealing electricity from the air between your hair
c)
It creates fricton which transfers electrons from your hair to the balloon
d)
It creates induction between your hair and the ballon
15.
If you put a piece of paper on a Van de Graaff generator it will stick for a moment then fly off, why is this?
a)
By the swapping of protons and electrons between objects
b)
Because at first they have oppostie charges and attract, then the paper also becomes (-) charged and they repel eachother
c)
The generator emits a magnetic field
d)
The generator is creating a breeze in the air around it
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