Velocity & Speed Flashcards
1
Q
Scalar quantity
A
Measured without direction eg distance, speed and time
2
Q
Vector quantity
A
Measured with direction eg gravity, velocity and displacement
3
Q
Displacement
A
Total distance travelled in one direction
4
Q
Uniform acceleration
A
Constant rate of acceleration
5
Q
Retardation
A
Also called deceleration, is the the rate of an object slowing down (opposite of acceleration)
6
Q
Newton’s 1st Law of motion
A
An object stays at rest or moves with uniform velocity in a straight line unless compelled to change its state by the action of an external force
7
Q
Centripetal force
A
A force that acts towards the centre ensuring the object continues moving in a circular motion
