Key Definitions Flashcards
1
Q
Force
A
Push or pull that alters state of motion of a body
2
Q
Inertia
A
Resistance of a body to a change in its state of motion (rest or constant velocity
3
Q
Velocity
A
Rate of change in displacement
Speed with direction
4
Q
Momentum
A
Quantity of motion possessed by moving body
5
Q
Acceleration
A
Rate of change in velocity
6
Q
Weight
A
Gravitational pull that Earth exerts on a body
7
Q
Reaction
A
Equal and opposite force exerted on a body in response to action force upon it
8
Q
Friction
A
Force that opposes the motion of two surfaces in contact
9
Q
Air Resistance
A
Force the opposes motion through air
10
Q
Streamlining
A
Creation of smooth air flow around an aerodynamic shape (minimise AR)
