Contact or Non-Contact Forces
What force is a foot kicking a soccer ball.
What is Applied Contact Force?.
A force that can cause a change in motion through touch.
What are Contact Forces?
Force that happens when two objects DO NOT touch, but there is still a push or pull effect.
What are Non-Contact Forces?
The force the pulls objects to the centre of the earth.
What is Gravity?
What NORTH poles do when they are aligned with another NORTH pole.
What is Repel?
What force is at work when an apple falling off a tree?
Gravitational Non-Contact Force
A typical force applied through push or pull.
What is Applied Force?
What forces have an attraction or repulsion between materials like iron, nickel, cobalt and other magnets.
What is Magnetic Force?
Gravity can only affect objects with this.
What is mass?
What happens when you increase the distance between magnets.
What is decreases the strength of the magnets?
What force is at work when a compass needle turns North?
Magnetic Non-Contact Force?
What are two things that can loose their stored memory when they come in contact with a magnet?
Credit Card and Computer Hard drive.
Earths north Pole
Does an objects mass affect the speed of gravity when it falls to earth?
No
What happens when SOUTH poles interact with NORTH poles of magnets.
What is attract?
Shoes rubbing against the floor.
What is Friction Contact Force?
Earth has a magnetic field do to what element inside earths core?
Iron
The force of attraction between any two objects in the universe.
What is Gravitational Force?
Increasing distance between objects does this to the strength of gravity.
What is decreases?
Materials that respond to magnetic fields.
What are nickel, cobalt, and iron?
What force is at work when a book is sitting on a table?
Gravitational Force?
What non-contact force is used in a photocopier?
Static Electricity
Isaac Newton
The ability an object has to stay at rest or continue in motion.
What is Inertia?
Why does rubbing a magnet onto an iron object enable the object to act as a magnet?
It aligns the atoms in to positive and negative directions.