Kinematics Flashcards
Vector Quantities (6)
- Displacement
- Velocity
- Acceleration
- Force
- Weight
- Gravitational field strength
Scalar quantities (7)
- Distance
- Speed
- Mass
- Energy
- Time
- Work done
- Temperature
Speed
The rate at which distance is covered
Velocity
Rate of change of displacement
Distance
Total length of pathway taken between origin and destination point
Displacement
The change in position of an object in a given direction
Velocity vs Speed
Velocity:
Vector
Magnitude and direction
Rate of change in displacement
Speed:
Scalar
Magnitude only
Distance moved per unit time
Distance vs Displacement
Distance:
Scalar
Total length regardless of direction
Displacement:
Vector
Magnitude and direction
Distance in straight line in one direction
Instantaneous speed
Speed measured over a very small period of time
Instantaneous velocity
Rate if change of displacement over a short period of time
What is Acceleration?
Rate of change of an objects velocity
Average speed
Total distance ÷ time taken
Average velocity
Displacement ÷ time taken
3 ways of acceleration
- Speed up
- Slow down
- Change direction
