Contact and Non-contact forces Flashcards
(9 cards)
1
Q
What is a vector?
A
Something with magnitude and direction
2
Q
What are vector quantities?
A
Force, velocity, displacement, acceleration, momentum
3
Q
What are scalar quantities?
A
Speed, distance, mass, temperature, time
4
Q
What is a force?
A
A push or a pull on an object that is interacting with something
5
Q
What is a contact force?
A
When two objects have to be touching for a force to act
6
Q
What is a non-contact force?
A
When two objects do not have to be touching for a force to act
6
Q
Examples of a contact force
A
Friction, air resistance, tension in ropes, normal contact force
7
Q
Examples of a non-contact force
A
Magnetic force, gravitational force, electrostatic
8
Q
What is an interaction pair
A
Is a pair of forces that are equal and opposite and act on two interacting objects
