9.1 Displacement - time graphs

Question 1

In a displacement time graph, state what is on the x-axis, and what is on the y axis?

Answer 1

» S is on the y axis
» T is the x axis

Question 2

What does s represent?

Answer 2

» The displacement of an object from a given point

Question 3

What does a horizontal line represent in a Displ/time graph?

Answer 3

» There is no change in displacement over time
» No distance covered
» Therefore the object is stationary

Question 4

What does a constant line represent in a Displ/time graph?

Answer 4

» The displacement increases at a constant rate over time
» Therefore the object is moving with a constant velocity

Question 5

What does an accelerating line show in a Displ/time graph?

Answer 5

» Displacement is increasing at a greater rate as time icnreases
» Velocity is increasing
» Therefore body is accelerating

Question 6

What is velocity?

Answer 6

» The rate of change of displacement with respect to time

Question 7

What does the gradient in a displacement time graph represent?

Answer 7

» Velocity

Question 8

What does a straight line in a displacement time graph represent?

Answer 8

» A constant velocity

Question 9

What is the formula for calculating average velocity

Answer 9

» Displacement from starting point/time taken

Question 10

What is the formula for average speed?

Answer 10

» Total distance traveled/ time taken