Describing motion along a line

Question 1

What is distance?

Answer 1

How far an object moves

Question 2

Is distance a scalar or vector quantity?

Answer 2

Scalar

Question 3

Does distance involve a direction?

Answer 3

No

Question 4

Define displacement

Answer 4

Displacement includes both the distance an object moves, measured in a straight line from the start point to the finish point and the direction of that straight line

Question 5

Is displacement a scalar or vector quantity?

Answer 5

Vector

Question 6

Does speed involve a direction

Answer 6

No

Question 7

Is speed a scalar or vector quantity?

Answer 7

Scalar

Question 8

What factors affect the speed at which someone walks?

Answer 8

• Age
• Terrain
• Fitness
• Distance Travelled

Question 9

What is the average speed of sound moving through air?

Answer 9

330 m/s

Question 10

How do you calculate distance?

Answer 10

Distance travelled = speed × time

Question 11

What are the units of distance?

Answer 11

Metres (m)

Question 12

What are the units of speed?

Answer 12

Metres per second (m/s)

Question 13

What are the units of time?

Answer 13

Seconds (s)

Question 14

What is the velocity of an object?

Answer 14

Its speed in a given direction

Question 15

Is velocity a scalar or vector quantity?

Answer 15

Vector

Question 16

What does a distance-time graph represent?

Answer 16

The amount of distance covered by an object travelling in a straight line over a period of time.

Question 17

What does the gradient of a distance-time graph tell you?

Answer 17

The speed of the moving object

Question 18

How can you calculate acceleration?

Answer 18

Acceleration = change in velocity / time taken

Question 19

What are the units of acceleration?

Answer 19

Metres per second squared (ms^2)

Question 20

What are the units for velocity?

Answer 20

Meters per second (m/s)

Question 21

What keyword describes an object slowing down?

Answer 21

Decelerating (Negative acceleration)

Question 22

How can you calculate acceleration from a velocity-time graph?

Answer 22

Work out the gradient of the line.