Chapter 6 - Speed, Displacement And Velocity

Question 0

Define:

Displacement

Answer 0

Is distance in a given direction.

Question 1

Define:

1. Speed
2. Average speed
3. Constant speed

Answer 1

1.Speed is the rate of change of distance with respect to time.
2,Average speed=distance travelled/time taken
3.An object at constant speed neither speeds up or slows down.

Question 2

Define:

1. Velocity
2. Average velocity
3. Constant velocity
4. Varying velocity

Answer 2

1. Velocity is the rate of change of displacement with respect to time.
2. Average velocity=distance travelled in a given direction or displacement overdone/time taken
3. Constant velocity it does not speed up, slow down or change direction.
4. It’s speed does not change but it’s velocity is changing because the direction in which it moves is always changing.

Question 3

Unit for:
Time 
Distance 
Speed
Displacement 
Velocity

Answer 3

Second (t)
Metre (s)
Metres per second (v/u)
Metre (s) ➡️
Metre per second (v/u)

Question 4

Average speed

Answer 4

Distance travelled
–over–
Time taken

Question 5

Average Velocity

Answer 5

Displacement undergone
—over—
Time Taken