Question

UTION
class.
Chapter: 1 Motion
D) How do we often perceive an object to be in motion?
2) What is essential to describe the position of an object?
3) 'State of motion and rest are relative.' Justify the statement with the help of examples
4) Define distance. State its SI unit.
5) Give the technical term used for the rate of motion of a body. Give its SI unit.
5) What do you understand by the term instantaneous velocity? Explain with an example
Give its unit.
7) An object travels a distance of 16 m in 4s and then another 16m in 2 s. What is the
average speed of the object?
)
In which direction do the following forces act when the object is in motion :
i. Frictional force.
ii. Gravitational force.​

Answer 1

(d)= when any object Chang e it's position with time , then the

object is said to be in motion