Part I
Q1. Is displacement a scalar quantity? No
Q2. State whether distance is a scalar or a vector
unit?
Q3. Change the speed 6 m/s into km/h and 54km/h
into m/s.
Q4. What do the following measure in a car?
() Speedometer
(ii) Odometer
Answers
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Answer:
- Displacement is vector quantity
- distance is scalar quantity
- speed 6m/s to km/hr = 6 × 18 / 5= 21. 6 km/h
- 54 km/hr to m/s = 54 × 5 ÷18 = 15 m/s
Speedometer measures the speed at which the car is running
Odometer measures or calculates the total distance covered by the car
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