Advertisements
Advertisements
Question
Is the motion of moon around the earth in circular path an accelerated motion?
Advertisements
Solution
Yes, it is an accelerated motion.
APPEARS IN
RELATED QUESTIONS
Derive a relationship between S.I. and C.C.S. unit of work
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
A woman pulls a bucket of water of total mass 5 kg from a well which is 10 s. calculate the power used by her.
Fill in the boxe to show the corresponding energy transformation.

Give an example
Electrical energy changes to heat energy.
Mention whether work is done or not in the following activity.
| S. No | Activity | Work done or not done |
| 1. | Pushing the door | |
| 2. | Holding a doll | |
| 3. | Sitting in a bus | |
| 4. | Pushing a wall | |
| 5. | Digging soil |
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A wind-mill is lifting water from a well.
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
