Mechanics Chapter 9 Constant Acceleration Flashcards
1
Q
what represents velocity on a displacement-time graph?
A
the gradient
2
Q
what does it mean if the displacement-time graph is a straight line?
A
velocity is constant
3
Q
what is the equation for average velocity?
A
average velocity = displacement from starting point / time taken
4
Q
what is the equation for average speed?
A
average speed = total distance travelled / time taken
5
Q
what represents acceleration on a velocity-time graph?
A
the gradient
6
Q
what does it mean if the velocity-time graph is a straight line?
A
acceleration is constant
7
Q
what represents distance on a velocity-time graph?
A
the area under the velocity-time graph
8
Q
what are the 5 SUVAT equations?
A
- v = u + at
- s = (u + v)/2 x t
- s = ut + 1/2at^2
- v^2 = u^2 + 2as
- s= vt - 1/2at^2
9
Q
what is the acceleration of an object moving vertically under gravity?
A
constant acceleration of 9.8 m s^-2
