Speed and velocity

Question 1

Describe the difference between distance and displacement

Answer 1

Distance is a scalar quantity and only has a magnitude, displacement is a vector quantity and has both a magnitude and Direction

Question 2

Describe the difference between speed and velocity

Answer 2

Speed is a scalar quantity and has only magnitude, Velocity is a vector quantity and has both a magnitude and Direction

Question 3

State the factors that can affect the speed at which someone walks runs or Cycles

Answer 3

Age fitness Terrain and distance travelled

Question 4

State the typical speeds for a person walking running and cycling

Answer 4

1.5 m/s 3 m/s and 6 m/s

Question 5

State the Typical speed of sound travelling in air

Answer 5

330 m / s

Question 6

Define the term acceleration

Answer 6

The change in velocity of an object per second

Question 7

State the unit of acceleration

Answer 7

m/s2 metres per second squared

Question 8

State how an object can be accelerating even if it is travelling at a steady speed

Answer 8

It is changing direction

Question 9

State what is happening to an object if it has a negative acceleration

Answer 9

It is slowing down

Question 10

State what quantity can be found by calculating the gradient of the line in a distance-time graph

Answer 10

Speed

Question 11

State what quantity can be found by calculating the gradient of the line in a Velocity-time graph

Answer 11

Acceleration

Question 12

State how the distance travelled by an object can be found from a velocity-time graph

Answer 12

By calculating the area under the graph