Motion Flashcards
1
Q
how do you calculate average speed
A
speed = distance over time
s = d
…….t
2
Q
what is velocity
A
speed in a given direction
3
Q
what is a vector
A
size (magnitude) and direction
4
Q
what is a scalar
A
size only (magnitude)
5
Q
how to calculate acceleration
A
acceleration = change in velocity over time taken
a = v-u
……..t
6
Q
What does the distance-time graph for an object at a constant speed look like?
A
A straight line that slopes upwards.
7
Q
What does the gradient on a distance-time graph represent?
A
Speed
8
Q
What does the distance-time graph of a stationary object look like?
A
A horizontal line
9
Q
What does the gradient of the line on a velocity-time graph represent?
A
Acceleration
10
Q
What does the area underneath a velocity/time graph represent?
A
Distance travelled.
