Electric Forces
What all matter is made of
Small Particles
What does ATTRACT mean?
PULL TOWARD
What is magnetism?
A force that pulls objects that contain IRON or STEEL
What is a magnetic POLE?
The point where the magnetic force is the STRONGEST
Two types of electric charges
1. Positive
2. Negative
What does REPEL mean?
PUSH AWAY
What is a natural magnet
NOT MADE magnetic by PEOPLE
What are the two poles?
1. North
2. South
What is a positive charge?
MORE POSITIVE particles than negative
What do LIKE charges do?
REPEL / PUSH AWAY
Kinds of objects magnets DO attract
What is a magnetic field?
The space where the force of a magnet acts. You cannot see the field but you can observe its effects
What is a negative electric charge?
MORE NEGATIVE than positive particles
What do OPPOSITE charges do?
ATTRACT / PULL TOWARD
Kinds of objects magnets DO NOT attract
What do we know about the force of a magnetic field?
It can be STRONG or WEAK
What does it mean when an object is NEUTRAL?
NO CHARGE
(Same number of Positive and Negative particles)
What is a source?
The CAUSE of the force (where it came from)
What are permanent magnets?
Magnets that CANNOT be turned on and off
What do LIKE poles do?
REPEL / PUSH AWAY
(North, North OR South, South)
Part 1: What is an INSULATOR?
Part 2: Give examples of insulators
Electric charges DO NOT move easily through insulators.
Examples of insulators are RUBBER and PLASTIC.
What 2 things determine the STRENGTH of an electric force?
1. the AMOUNT of ELECTRIC CHARGE the objects have
2. the DISTANCE between the objects
What is an electromagnet?
An electromagnet is a piece of metal with a wire wrapped around it. When an electric current goes through the wire, the METAL BECOMES A MAGNET.
ATTRACT
(North, South)
Part 1: What are conductors?
Part 2: Give example of a conductor.
Electric charges MOVE EASILY through conductors.
Examples of conductors are METALS.
What are the states of matter?
Liquid, gas, solid
How is an electromagnet different from a permanent magnet?
An electromagnet CAN be turned on and off by an electric current.
How do you know Earth is a gigantic magnet?
1. It has a NORTH and SOUTH pole
2. Iron center
Part 1: What is STATIC DISCHARGE?
Part 2: Give 2 examples of static discharge
The TRANSFER OF PARTICLES between objects that aren't touching.
Examples of static discharge are 1. LIGHTNING STRIKES and 2. SPARK / ZAP
What is our school mascot?
A Panther!
Compass has a MAGNETIC NEEDLE that always points north and can help us find our way
What is Mrs. Whitmore's dogs name? or Ms. Finkbeiners cats name?
Lady! or Romeo!