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VERY SHORT ANSWER TYPE QUESTIONS
Change the speed 6 m/s into km/hr.
What do speedometer and odometer used for?
What is the other name of negative acceleration ?
What does the slope of distance-time graph indicate ?
What can you say about the motion of a body if its speed-time graph is
straight line parallel to the time axis ?
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Define Motion
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Is distance is a scaler or vector quantity? Why?
Is displacement is a scaler quantity? Why?
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Define average speed.
10.
What is difference between speed and velocity?
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Answers
Answer:
it is small question are you sure !
1.speed 6m/s = 21.6 km/ hr
2. Speedometer is used for speed of vehicle and Odometer used for distance traveled by the object
3. Negative acceleration other name is deceleration.
4. It shows that how far an object has travelled in given time
5. It means the object is not changing with time.
The object is performing uniform motion.
6. Motion means change with time of the position
7. Distance is scalar quantity because It has only magnitude It does not require any specific direction.
8. Displacement is vector quantity. Because It has specified direction and magnitude .
9. The distance covered by an object in unit time time is called Average Speed.
Average speed = Total distance by time taken
10. Differences between Speed and Velocity
Speed :
The distance covered in unit time is called Speed.
Speed = Total distance by time taken
The S.I unit of speed is m/s
It is scalar quantity
It has no specified direction
Velocity:
The displacement covered per unit time is called Velocity
Velocity = Total displacement by time taken
The S.I unit of Velocity is m/s
It is Vector quantity
It has specified direction.