Velocity and Acceleration Flashcards
What is meant by the velocity of an object?
its speed in a particular direction
What is meant by acceleration?
rate of change of velocity
How do you calculate change in velocity?
Change in velocity = final velocity - initial velocity
How do you workout the average acceleration of an object?
acceleration = change in velocity/time taken
How do you calculate speed?
Speed = distance/time
Tell me about distance-time graphs
On a distance-time graph, the gradient of the line is equal to the speed of an object.
The greater the gradient the steeper the line - the faster an object is moving
On a distance-time graph what does a straight line/flat line mean
come to a stop
What is speed?
Speed is Scalar (meaning it is only magnitude, it does not other the direction of travel)
What is velocity?
What is its measurement?
Velocity is a vector (it tells us the speed and direction)
When velocity is mentioned you must keep track of direction
Measurement = m/s
Difference between distance and displacement?
Distance = distance covered
Displacement = distance covered and direction
