Question

A. Choose the correct answer.
1. A moving body slows down or stops on its own due to __________ force.
a. Gravitational b. Elastic c. Mechanical d. Frictional
2. Which of the following forces leads to any object to fall down even if we throw up in the sky?
a. Elastic b. Gravitational c. Frictional d. Magnetic
3. Which of the following objects are attracted towards magnets?
a. Plastic bag b. Eraser c. Clothes d. Iron nail
4. Which of the following actions shows that work has been done?
a. Lifting a book b. Reading a book c. Sitting with a book
d. Standing with a book
5. Which of the following has gravity that pulls down things?
a. Trees b. Shrubs c. Earth d. Air
6. If Ravi is able to move the table through a distance, then __________ is said to be done.
a. Work b. Force c. Energy d. Muscle
B. Name the kind of force being used in each case.There might be more than one type of force in some cases.
1. Raj bowled the fifth ball of the over. Ajay hit it to boundary for a four. __________
2. The doorbell rang. Stella ran to the door. __________
3. The cup fell from Shaan’s hands and broke into pieces. __________
4. The stone rolled down the slope and fell into the river. __________
5. Granny cut a piece of cloth into two with a pair of scissors. __________
C. Give reasons for the following:
1. Why do all the things come down to the Earth when we throw them up? ________________________________________________________________________________________________________________________________________________________________________________________________
2. Why do skaters keep moving their skating shoes? ________________________________________________________________________________________________________________________________ ________________________________________________________________

Answer 1

Answer:

1)d

2)b

3)d

4)b

5)c

6)a

C1.

the pool exist by objects possessing mass is called gravitational force if you drop a stone from some height it will fall towards Earth this is because the earth existed gravitational force of attraction on the stone and pull it down gravity is in natural force of attraction