FM1 - Velocity and acceleration Flashcards
What do speed and velocity both show and what are they measured in?
How fast an object is going
m/s
What is the difference between speed and velocity?
Velocity shows how fast your going as well as the direction it is going in
What is the equation for average speed?
Average speed = distance/time
What is the triangle formula?
D/s x t
What is acceleration?
How quickly velocity changes
What can the change in velocity be?
Change in speed or change in direction
What is the formula and unit for acceleration?
Acceleration = Change in velocity/ time taken
m/s2 (squared)
On a distance time graph, what does the gradient represent?
Speed - the steeper the diagonal line, the faster it is going
On a distance time graph, what does a flat line represent?
Where it has stopped
On a distance time graph, what do curves represent?
Acceleration or deceleration
On a distance time graph, a steepening curve means?
Its speeding up (increasing gradient)
On a distance time graph, a levelling off curve means?
Its slowing down (decreasing gradient)
On a distance time graph, what does a downhill section represent?
Going back to the starting point
On a velocity time graph, the gradient represents what?
Acceleration
On a velocity time graph, a flag section/line represents?
A steady speed
