## Questions about motion with answers

In this worksheet, you will find miscellaneous motion questions that involve concepts like

- Distance and displacement
- Uniform and non-uniform motion
- Average speed and velocity
- Acceleration
- Graphical representation of motion
- Equations of motion in a straight line with uniform acceleration and
- Uniform circular motion

All the questions in this worksheet are of the grade levels 8, 9, 10, 11, and 12. The aim of this worksheet is to test the basics of the concept of motion.

### Conceptual Questions

**Question 1** An object has moved through a distance. Can it have zero displacement? If yes, then support your answer with an example.

**Answer 1**

Example: Person walking along with a circular moving along a circular path, starts at point A and returns back to point A then total distance covered would be $2pi r$ but the net displacement of the object would be zero.

**Question 2** Under what conditions are the magnitude of the average velocity of an object equal to its average speed?

**Answer 2**

** ****Question 3** Can the magnitude of displacement be more than distance.

**Answer 3**

** ****Question 4** What is the displacement of motion of the tip of the minute hand of a clock in one hour?

**Answer 4**

** ****Question 5** Is it possible to have non-zero velocity for a time interval, while the acceleration is zero at any instant within the time interval?

**Answer 5**

This shows that acceleration is zero when the change in velocity (v-u) is zero or we can say when a body is moving with uniform velocity, it’s acceleration will be zero. For example, if a car is moving with a constant velocity of 15m/s, then its acceleration is zero.

So it is possible to have non zero velocity for a time interval, while the acceleration is zero at any instant within the time interval.

** ****Question 6** What is the nature of distance-time graphs for uniform and non-uniform motion of an object?

**Answer 6**

** ****Question 7** What do you think about the speed-time graph given below

**Answer 7**

** ****Question 8** What does the area between the v-t graph give?

**Answer 8**

** ****Question 9** Is uniform circular motion an example of constant acceleration?

**Answer 9**

** ****Question 10** An artificial satellite goes around the earth in a perfectly circular orbit with constant speed. Is the motion accelerated? Why?

**Answer 10**