Dynamics (Kinematics) Flashcards
Speed
How fast an object is moving (regardless of direction)
Velocity
The rate of change in an objects displacement (vector)
Displacement
Distance moved from starting point in a given direction (vector)
Accelleration
The rate of change of an objects velocity
Gradient of a displacement-time graph
Velocity
Acceleration on a distance-time graph
The rate of change of the gradient
Non-uniform acceleration
Where direction of motion changes, or speed changes at a varying rate
Distance on a velocity-time graph
Area under the graph
Negative displacement on a velocity-time graph
Area under the negative part of the graph
Total change in velocity on an acceleration-time graph
Area under the graph
Horizontal line on an acceleration-time graph
- If a=0, then there is no acceleration (moving at a constant speed)
- If a≠0 then there in uniform acceleration
Deceleration on an acceleration-time graph
Line below the x-axis
Where can suvat equations be used?
In situations where acceleration in constant
What links the vertical and horizontal components in projectile motion?
Time
Terminal velocity
A maximum velocity reached where the resistive forces equal the driving forces
