P9 Flashcards
1
Q
The gradient of a line on a distance time graph represents …
A
Speed
2
Q
What is the equation of speed
A
Distance / time taken
3
Q
What is the difference between speed and velocity
A
Velocity is speed in a given direction
4
Q
What is the acceleration of an object
A
And objects change in velocity per second
5
Q
How do you calculate acceleration
A
Change in velocity / time taken to change
6
Q
What is deceleration
A
It is negative acceleration ( its used for a situation where an object slows down
7
Q
How do you measure velocity changes
A
A motion sensor linked to a computer
8
Q
What does the area under a velocity time graph tell you
A
This represents distance travelled
9
Q
How do you calculate the gradient of a line
A
Height / base ( rise over run)
