Unit 1- Vector, Scalars And Stopping Distance Flashcards
1
Q
Scalar
A
A quantity that has magnitude but no direction
2
Q
Acceleration
A
Rate of change of velocity
3
Q
Velocity
A
Rate of change of displacement
4
Q
Displacement
A
Distance in a given direction
5
Q
Newton
A
The force is 1N when a 1kg amass has an acceleration of 1 ms^-2
6
Q
Joule
A
1J of work is done when a force of 1N moves 1m (in the direction of the force)
7
Q
Watt
A
A power of 1W is developed when 1J of work is done per second
8
Q
Stopping distance
A
Thinking distance + braking distance
9
Q
Braking distance
A
The distance travelled after the brakes are applied until the car stops
10
Q
Thinking distance
A
The distance travelled from when the driver sees a problem until the brakes are applied
11
Q
Vector
A
A quantity that has both magnitude and direction
