contact and non contact forces Flashcards
1
Q
what is a force
A
A force is a push or a pull that acts on an object
2
Q
what do vector quantities have?
A
magnitude (size) and direction
3
Q
what is a contact force?
A
When two objects have to be touching for a force to act
4
Q
what are examples of a contact force?
A
friction , air resistance, tension
5
Q
what is a non contact force?
A
Two objects do not need to be touching for a force to act
6
Q
what are examples of a non contact force?
A
magnetic force , gravitational force , electrostatic force
