Displacement - Time Graphs

Question 1

What type of motion does a straight line represent?

Answer 1

The displacement increases by equal amounts in equal times - So object tis moving at a constant velocity

Question 2

How do you calculate the velocity on a displacement-time graph of a LINEAR graph?

Answer 2

Velocity = Displacement / Time Taken

Basically the Gradient

Question 3

What does a STEEPER gradient mean?

Answer 3

A greater velocity

Question 4

Velocity is a VECTOR so what do we need to include in our answer?

Answer 4

Direction

Question 5

How do you draw a displacement-time graph for a stationary object?

Answer 5

Velocity is 0 so the gradient of the graph must = 0

HORIZONTAL LINE

Question 6

What does a gradual curve in a displacement-time graph show us?

Answer 6

Velocity is gradually increase and decreasing

So the object is accelerating

Question 7

How do we find the actual velocity of the object at any point?

Answer 7

Calculate the gradient of the curve at any point

Question 8

How do we calculate the gradient at any point on a curved graph?

Answer 8

• Draw a tangent to the curve

- Calculate its gradient

Question 9

What does the gradient of a distance time graph show us?

Answer 9

the SPEED