Define uniform and non-uniform motion. Write one example for each.
4. What does the odometer of an automobile measure? Which of the following is moving faster? Justify your answer.
Answers
A body travels in uniform motion if it make equal distances at equal intervals of time. If it travels 1 .5 km after one minute and covers 3.0 km after 2 minutes then it is undergoing uniform motion for the whole two minutes.
A body travels in non-uniform motion if it makes unequal distances at equal intervals of time. If it travels 1.5 km after one minute and covers 4.0 km after 2 minutes then it is undergoing non-uniform motion for the whole two minutes.
Odometer is a device that measures the distance travelled by an automobile based on the perimeter of the wheel as the wheel rotates. Odometer is a device that measures the distance travelled by an automobile based on the perimeter of the wheel as the wheel rotates.
Answer :-
1. Uniform motion :
If an object is moving along a straight line path is said to have a uniform motion, if its speed remains constant.
2. Non Uniform motion :
An object moving along a straight line path is said to have non-uniform motion if its speed keeps changing (it does not remain constant).