1. Which is the reference point of a boy leaving home for school? *



canteen

classroom

home

school ground

2. A change in position is called ____. *



motion

friction

gravity

force

3. A force is described as________. *


a push only

a push or a pull

a pull only

none of the above

4. The motion that repeats itself after definite time intervals is called- *



rolling motion

rectilinear motion

periodic motion

all of the above

5.It is the movement of an object around a fixed point such that its distance from the center remains the same. *



periodic motion

cicular motion

rectilinear motion

none of the above

6.What motion has a ball rolling on the ground? *



rectilinear motion

rolling motion

circular motion

periodic motion

7. Which of the following affects motion ? *



friction

force

gravity

all of the above

8. It is the distance an object moves in a certain amount of time. *



motion

speed

distance

Time

9. Reference point is also called _____ *



place of reference

frame of reference

motion

position

10. Which of the following force that occurs in rubbing two objects against each other and it slows down the moving object? *



gravity

friction

inertia

none of the above​