Types of Forces
What is contact force?
a force that needs to touch an object to make it move, stop, or change direction.
How many poles are on a magnet?
2
What is electrostatic force?
A push or pull between things that have electric charges.
What is this an example of: A ball falling to Earth is an example of what force
Gravity
What is a force?
A push or pull
What is non-contact force?
a force that works without touching the object.
What does 'attract' mean in magnetism?
Push together
What everyday object can show electrostatic force by making your hair stand up?
Balloon
Who came up with the theory of gravity?
Isaac Newton
Name two non-contact forces.
Gravity and magnetism
What is gravity?
Gravity is a pulling force that pulls things toward each other.
It’s what keeps you on the ground and makes things fall down.
What does repel mean in magnetism?
To push apart/away from each other
What causes lightning in the sky?
Electrostatic force
A ball comes back down to the Earth because of...
Gravity
How does a compass work?
it uses a small magnet that aligns with Earth’s magnetic field to point north and south
What is electrostatic force?
Electrostatic force is a push or pull between things that have electric charges.
It can pull things together or push them apart, even without touching.
How does distance affect a magnet's strength?
The farther the magnet the weaker the force, the closer the magnet, the stronger the force
What happens when you rub a balloon on your shirt and put it near paper?
The paper gets pulled toward the balloon because of electrostatic force.
Why do we stay on the ground instead of floating into space?
ecause gravity pulls us toward the Earth
What is magnetism?
Magnetism is a force that makes certain things attract or repel
each other. Magnets can stick to your fridge because of this force.
Give me an example of non-contact force
magnetism
What happens when you bring two like poles of a magnet together?
They repel each other-push each other away
Name one machine that uses electrostatic force to work.
Photocopier
Give me an example of gravity working in space
Earth orbiting the sun (or the moon orbiting Earth)
Who came up with the theory of gravity?
Thomas Edison