Nature of quantities & motion Flashcards
1
Q
Scalar
A
Magnitude but not direction
2
Q
Vector
A
Magnitude and direction
3
Q
Resolving vectors
Fx=
A
Fcosθ
4
Q
Resolving vectors
Fy=
A
Fsinθ
5
Q
what is the gradient in a displacement-time graph?
A
the instantaneous velocity of the object.
6
Q
what is the gradient in a velocity-time graph?
A
acceleration
7
Q
What is the area under a velocity-time graph?
A
displacement
8
Q
how to find g by an experimental method?
A
Using light gates
use suvat equation v^2=u^2+2as and rearrange for g.
9
Q
thinking distance
A
distance traveled between driver seeing hazard and applying the brakes
10
Q
braking distance
A
distance car travels between applying brakes and coming to a rest.
11
Q
stopping distance
A
thinking distance + braking distance
