Poles
Magnetism & Static
Random
Vocabulary
Static Electricity
100
How many poles does a magnet have?
2
100
The build-up of charges on an object is called ______.
Static Electricity
100
A magnet that keeps its magnetism is called _________.
Permanent magnet
100
What does repel mean?
To push away
100
All matter is made of tiny particles called __________.
Atoms
200
What are the two poles of a magnet?
North and South
200
True or False? Birds navigate using the earth’s magnetic field.
True
200
What is an example of a ferromagnetic material?
Iron and/or Steel
200
What does attract mean?
To pull together?
200
Rubbing two objects together causes ____________, which in turn makes the objects gain or lose electrons.
Friction
300
Is a magnet strongest at the North Pole, South Pole, or both?
Both
300
What is the difference between magnetic and non-magnetic objects?
One contains iron or steel, and the other does not.
300
Why is the Earth like a magnet?
It has an iron core, a north and south pole, and a magnetic field.
300
What is a compass and what direction does it typically point?
A tool that tells directions on Earth. It usually points North.
300
What are the three basic parts of an atom? And what CHARGE do they have?
Electrons - Negative Protons - Positive Neutrons - No charge
400
What happens when two South poles are touching each other?
The magnets repel
400
When someone is touching the Van De Graaff Generator, his/her hair stands up because ____.
Like charges repel each other.
400
A loss of static electricity such as in lightning.
Static Discharge
400
Charging an object by means of an electric field with no direct contact.
Induction
400
If an object gains electrons through friction, it becomes ____________ charged.
Negatively
500
True or False: When opposite poles of two magnets come near each other, they attract.
True
500
What object makes a compass work?
It's magnetic needle spins freely.
500
A grouping of atoms that have their magnetic fields aligned is known as a _______.
Magnetic domain
500
When you hold magnets close together, you feel something. What is the name of it?
Magnetic force......NOT the magnetic field.
500
Why does your hair stick up when you slide down a slide or jump around on a trampoline?
Your hair has become negatively charged through friction and each strand is repelling the one next to it, causing your hair to stand up.
M
e
n
u