Forces
Static Electricity
Magnets
More Magnets!
Vocabulary
100
What force is happening when you drag someone on a sled (push or pull?)
Pull
100
What force is this showing?
Static electricity
100
Does a magnet have to touch an object to move it?
No.
100
Is a penny magnetic?
No.
100
What is attract?
When an object pulls another object towards itself
200
Gravity puts what force on an object (down or up?)
Down
200
What happens when you rub your hair on a balloon?
The hair and balloon are attracted to each other because of static electricity.
200
If you put two magnets with the same pole together, what will happen?
They will repel (not want to go together).
200
If you put two magnets with their opposite poles facing together, what will happen?
They will attract (go together).
200
What is repel?
To push away
300
When something moves, it's affected by what two properties?
Direction and force (how hard or light it is being moved).
300
Do hairs that are standing straight up have the same charge or opposite charges?
Same charge
300
What 3 objects do you need to create a magnet?
Nail, copper wire, battery
300
What two things affect how easily something is moved by a magnet?
Size and proximity (how close or far things are).
300
What is a contact force?
A push or pull that makes an object move, stop, change direction or shape
400
If the forces are balanced, will an object move?
No. They move when unbalanced forces are applied.
400
Which material can static electricity not travel through?
Rubber
400
What are the two poles on a magnet?
North and south pole
400
What does this image show?
The Earth is like a giant magnet, it is showing it's magnetic poles and magnetic field.
400
What is a non contact force?
A force that can move or change an object without touching the object (ex. magnetism and static electricity)
500
What force is being used?
Friction
500
What is friction?
the resistance to movement created when two object slide over eachother
500
How does a compass work?
The Earth magnetism helps the needle point north.
500
What three metals are attracted to magnets?
Iron, nickel, and cobalt
500
What is proximity?
How close or far away two things are from each other.