6.7A
What is Gravity?
A force that pulls objects with mass towards each other
What is a force?
A push or pull
Contact or Non Contact force? - Gravity
Non-contact force
What is Friction?
Force between two substances when they push or rub against each other
What is a Balanced force?
Whenever two forces combine and they ARE the same
Contact or Non Contact force? -Friction
Contact force
What is Magnetism?
A force where two objects are attracted to each other, or repulsed by each other
What is a Unbalanced force?
Whenever two forces combine and they are NOT the same
Contact or Non Contact force? -Magnetism
Non-Contact Force
What is a Contact Force? & Non-Contact Force?
Contact force - Has to be touching
Non-Contact force - Cannot be touching
What is Net Force?
The total sum of two forces acting upon each other
What is Newton's Third Law of Motion?
If one object exerts a force on another object then the second object exerts an equal force on the first object in the opposite direction
What is a normal force?
Any force applied perpendicularly to a surface
What is the Net Force of this Object?
10 Newtons pushing to the left plus 12 Newtons pushing to the right.
2 Newtons to the right
What is a Force Pair?
The action-reaction forces described by Newton's Third Law.