Speed

Question 1

What is the equation for speed?

Answer 1

Speed = distance/time

Question 2

What are the units for speed?

Answer 2

Meters per second (m/s)

Question 3

What are the units for distance?

Answer 3

Meters (m)

Question 4

What are the units for time?

Answer 4

Seconds (s)

Question 5

What is the typical walking speed in the UK?

Answer 5

1.5 m/s

Question 6

What is the typical running speed in the Uk?

Answer 6

3 m/s

Question 7

What is the typical cycling speed in the UK?

Answer 7

6 m/s

Question 8

What is the typical driving speed in the UK?

Answer 8

13 m/s

Question 9

What is the typical speed for a fast train in the UK?

Answer 9

50 m/s

Question 10

What is the typical speed for a cruising aeroplane in the UK?

Answer 10

250 m/s

Question 11

What is the typical speed of sound?

Answer 11

330 m/s

Question 12

What happens to the velocity of an object travelling at a constant speed in a circle?

Answer 12

When an object is moving at a constant speed in a circle then its velocity is constantly changing because the direction of the object’s motion is constantly changing

Question 13

Define velocity?

Answer 13

The speed in a given direction that the object is moving

Question 14

What is the equation for velocity?

Answer 14

Velocity= Distance/ Time

AND the DIRECTION the object is moving in (N,E,S,W)

Question 15

What must you include in your answers about calculating velocity?

Answer 15

The DIRECTION that the object is moving

Question 16

What are the units for velocity?

Answer 16

Meters per second (m/s)

Question 17

Is speed is scalar or vector quantity and why?

Answer 17

Scalar

It has only magnitude (m/s) and not direction

Question 18

Is velocity a scalar of vector quantity and why?

Answer 18

Vector quanitity

It has both magnitude (m/s) and direction

Question 19

How do you calculate the total average speed for an entire journey?

Answer 19

Calculate the total distance (m) and the total time taken (s) and divide the distance by the time

Question 20

What four things determine the speed that a person travels at?

Answer 20

1. Age
2. Fitness
3. Type of terrain
4. Distance travelled

Question 21

Give three examples of objects that are travelling at a constant speed with a constantly changing direction

Answer 21

1. A ball attatched to a string being swung in a horizontal direction at a constant speed
2. A car driving around a roundabout at a constant speed
3. The moon orbitting around the earth at a constant speed