Kinematics Flashcards
Distance, Displacement, Speed, Velocity, Acceleration
1
Q
Define Kinematics
A
Study of motion without looking at forces causing the motion
Distance
Displacement
Speed
Velocity
Acceleration
2
Q
Describe distance.
A
Actual path followed by a moving object
Scalar
Metres (m)
3
Q
Describe displacement.
A
Shortest distance between 2 points
Straight line
Vector
Metres (m)
4
Q
Describe speed.
A
Scalar
ms -1
Moving object’s speed usually changes unless constant speed
Average speed = distance/time
5
Q
Describe velocity.
A
Velocity = Displacement/Time
Vector
ms -1
6
Q
Describe acceleration.
A
Rate of change of velocity
Acceleration = change in velocity / time
a = v-u / t
Vector
ms -2
7
Q
Describe motion in a circle.
A
Distance around full circle = 2 pi r
Displacement around full circle = 0
Velocity = 0
Acceleration = 0
