Describing Motion Along A Line Flashcards
1
Q
Speed = ?
A
Speed = Distance / Time
2
Q
Velocity = ?
A
Velocity = Displacement / Time
3
Q
Speed
A
How fast an object moves
Scalar
4
Q
Velocity
A
The speed of an object with direction
Vector
5
Q
Distance
A
How far an object moves
Scalar
6
Q
Displacement
A
A straight line from start to finish point
Vector
7
Q
Acceleration
A
Change in velocity
Vector
8
Q
Car = ? Walking = ? Train = ? Running = ? Plane = ? Cycling = ?
A
Car = 30m/s Walking = 1.5m/s Train = 60m/s Running = 3m/s Place = 200m/s Cycling = 6m/s
9
Q
Equation for acceleration (time but no distance)
A
Acceleration = Change in velocity / Time taken
10
Q
Equation for constant acceleration (have distance but not time)
A
(Final velocity)^2 - (Initial velocity)^2 = 2 X Acceleration X Distance
11
Q
Terminal Velocity
A
Weight of an object is balanced by resistive forces
