motion important
question of motion class9
Answers
what are three newtons laws of motion
1)What is a reference point ?
Answer:
A fixed point with respect to which the given object changes its position.
2)Is it possible that the train in which you are sitting appears to move while it is at rest ?
Answer:
Yes. The train at rest in which we are sitting appears to move when we look at another train moving parallel to the track on which our train is standing.
3)Define the term “distance”. –
Answer:
The length of actual path travelled by an object in the given time is called the distance travelled by the object.
4)Is distance a scalar or a vector quantity ?
Answer:
Distance is a scalar quantity’.
5)Define the term “displacement”.
Answer:
The shortest distance between the initial and final positions of the object in a particular direction.
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