Speed-time graphs

The graph below shows how the velocity of a sports car changes in a short race.

4

Describe the motion in each of the stages 1 to 4.

1

How much time did it take the car to reach 40 m/s from rest?

1

The car’s speed stayed constant for 10 seconds. What speed did it have at this stage?

1

At what time was the car going fastest?

1

Calculate the acceleration from 0-10 s.

1

Calculate the acceleration from 20-30 s.

1

Calculate the deceleration from 30-50 s.

1

Calculate the distance travelled from 0-10 s.

1

Calculate the distance travelled from 10-20 s.

1

Calculate the distance travelled from 20-30 s.

1

Calculate the distance travelled from 30-50 s.

The graph below is the speed time graph for a short race.

Use the graph to answer the following questions.

2

Describe the speed and the acceleration from 0-4 seconds.

2

Describe the speed and the acceleration from 4-6 seconds.

2

Describe the speed and acceleration from 8-9 seconds.

1

Calculate acceleration from 0-4 seconds.

1

Calculate acceleration from 6-8 seconds.

1

Calculate deceleration from 10-12 s.

1

Calculate distance travelled from 0-4 s.

1

Calculate distance travelled from 4-6 s.

1

Calculate distance travelled from 6-8 s.

2

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object remaining at rest (not moving).

2

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object moving at constant speed.

2

Speed-time graphs

Describe the motion in each of the stages 1 to 4.

How much time did it take the car to reach 40 m/s from rest?

The car’s speed stayed constant for 10 seconds. What speed did it have at this stage?

At what time was the car going fastest?

Calculate the acceleration from 0-10 s.

Calculate the acceleration from 20-30 s.

Calculate the deceleration from 30-50 s.

Calculate the distance travelled from 0-10 s.

Calculate the distance travelled from 10-20 s.

Calculate the distance travelled from 20-30 s.

Calculate the distance travelled from 30-50 s.

Describe the speed and the acceleration from 0-4 seconds.

Describe the speed and the acceleration from 4-6 seconds.

Describe the speed and acceleration from 8-9 seconds.

Calculate acceleration from 0-4 seconds.

Calculate acceleration from 6-8 seconds.

Calculate deceleration from 10-12 s.

Calculate distance travelled from 0-4 s.

Calculate distance travelled from 4-6 s.

Calculate distance travelled from 6-8 s.

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object remaining at rest (not moving).

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object moving at constant speed.

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object moving at constant acceleration.

Describe the motion in each of the stages 1 to 4.

How much time did it take the car to reach 40 m/s from rest?

The car’s speed stayed constant for 10 seconds. What speed did it have at this stage?

At what time was the car going fastest?

Calculate the acceleration from 0-10 s.

Calculate the acceleration from 20-30 s.

Calculate the deceleration from 30-50 s.

Calculate the distance travelled from 0-10 s.

Calculate the distance travelled from 10-20 s.

Calculate the distance travelled from 20-30 s.

Calculate the distance travelled from 30-50 s.

Describe the speed and the acceleration from 0-4 seconds.

Describe the speed and the acceleration from 4-6 seconds.

Describe the speed and acceleration from 8-9 seconds.

Calculate acceleration from 0-4 seconds.

Calculate acceleration from 6-8 seconds.

Calculate deceleration from 10-12 s.

Calculate distance travelled from 0-4 s.

Calculate distance travelled from 4-6 s.

Calculate distance travelled from 6-8 s.

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object remaining at rest (not moving).

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object moving at constant speed.

Sketch two set of axes like this and add a line to each one to show what the graphs look like for an object moving at constant acceleration.