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SPEED AND VELOCITY

CONTENT

  1. The Concepts of Distance, Speed, Velocity and Uniform Speed/Velocity
  2. Calculations on Speed and Velocity
  3. Distance-Time Graph, Displacement-time Graph

 

The Concepts of Distance, Speed, Velocity and Uniform Speed/Velocity

1. Distance (s)

This is the separation or space between two points. It is measured in meters and it is a scalar quantity.

2. Displacement (s)

It is distance in a specified direction. It is a vector quantity and it is measured in meters.

3. Speed (v)

It is the rate of change of distance moved with time. The unit is m/ and it is a scalar quantity.

\(Speed = \frac{distance}{time} \\ v = \frac{s}{t} \)

(a) Uniform speed

It is obtained if the rate of change of distance with time is constant or when a body travels equal distances in equal time intervals.

(b) Average speed

Average speed is the total distance travelled divided by the total time taken.

Lesson tags: Physics Lesson Notes, Physics Objective Questions, SS1 Physics, SS1 Physics Evaluation Questions, SS1 Physics Evaluation Questions First Term, SS1 Physics First Term, SS1 Physics Objective Questions, SS1 Physics Objective Questions First Term
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