Speed Flashcards
Speed = ?
Average speed = ?
Speed (m/s) = distance (m) / time ( s )
Average speed = total distance (m) / total time ( s )
What is the difference between speed + velocity
Velocity has direction ( speed with direction )
Speed is just a value
Definition of a scalar
Just a value
Definition of a vector
Value with direction
Is velocity a scalar or a vector
Vector
Is speed a scalar or a vector
Scalar
Name 2 other examples of a scalar
Distance
Energy
Name 3 other examples of a vector
Force
Acceleration
Displacement
Definition of acceleration
Defined as the change in velocity
Therefore occurs if : 1. speed changes
2. direction changes
How do you calculate speed from a distance time graph?
The vertical divided by the horizontal gradient
How can a vector be represented
As an Arrow