Q1. Is displacement a scalar quantity?
Answer:
Displacement is not a scalar quantity, it is a vector quantity.
Q2. State whether distance is a scalar or a vector quantity.
Distance is a scalar quantity.
Q3. Change the speed of 6 m/s into km/h.
6 m/s = 6×(3600/1000) km/h = 21.6 km/h.
Q4. What name is given to the speed in a specified direction?
Velocity is the name that is given to the speed in a specified direction.
Q5. Give two examples of bodies having non-uniform motion.
a) Bus moving on the road
b) A racing horse motion
Q6. Name the physical quantity obtained by diving ‘distance travelled’ by ‘time taken’ to travel that distance.
Speed is the physical quantity that is obtained from distance travelled and time taken. Speed is defined as the distance travelled per unit time.
Q7. What do the following measure in a car?
a) speedometer
b) odometer
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Answers & Comments
Q1. Is displacement a scalar quantity?
Answer:
Displacement is not a scalar quantity, it is a vector quantity.
Q2. State whether distance is a scalar or a vector quantity.
Answer:
Distance is a scalar quantity.
Q3. Change the speed of 6 m/s into km/h.
Answer:
6 m/s = 6×(3600/1000) km/h = 21.6 km/h.
Q4. What name is given to the speed in a specified direction?
Answer:
Velocity is the name that is given to the speed in a specified direction.
Q5. Give two examples of bodies having non-uniform motion.
Answer:
a) Bus moving on the road
b) A racing horse motion
Q6. Name the physical quantity obtained by diving ‘distance travelled’ by ‘time taken’ to travel that distance.
Answer:
Speed is the physical quantity that is obtained from distance travelled and time taken. Speed is defined as the distance travelled per unit time.
Q7. What do the following measure in a car?
a) speedometer
b) odometer
Answer: