Topic 5 Contact And Noncontact Forces Flashcards
What kind of quantity is a force
A vector quantity
What is vector quantity
Has direction and magnitude
Examples vector quantities
Force
Velocity
Displacement
Acceleration
Momentum
What is a scalar quantity
Has only magnitude
Examples of scalar quantities
Speed
Distance
Mass
Temperature
Time
What does the length of an arrow show
The magnitude (size)
What does the direction of the arrow show
The direction of vector
What is a contact force
When two objects have to be touching for a force to act
Examples of contact forces
Tension
Friction
Air resistance
Normal contact force
What is a non contact force
If the objects do not need to be touching for a force to act
Examples of non contact forces
Gravity
Electrostatic
Magnetic
What is an interaction pair
A pair of forces that are equal and opposite and act on 2 interacting objects
