Question

Which one of the following forces is a contact force? *

1 point

magnetic force

force of gravity

electrostatic force

force of friction

2. Two objects repel each other.This repulsion could be due to *

1 point

magnetic force only

frictional force only

either a magnetic or an electrostatic force

electrostatic force only

3. During dry weather, while combing hair,sometimes we experience hair flying apart.The force responsible for this is *

1 point

magnetic force

force of friction

electrostatic force

force of gravity

4. There is one force which is exerted by all matter on all other matter. Name this force. *

1 point

frictional force

electrostatic force

magnetic force

gravitational force

5. Which of these can a force acting on an object not change? *

1 point

state of rest

direction of motion

shape

mass

6. Which of the following fibres are made from petrochemicals? *

1 point

Nylon

Polyester

Cellulose

Jute

7. Fire fighter's uniform is coated with plastic that is fire resistant. Identify the plastic from the given options. *

1 point

PET

Polyester

Teflon

Melamine

8. Being a responsible citizen, we have to develop habits that are environment friendly. What is the 5R principle we all should follow? *

1 point

Reduce, Rethink, Reply, Repurpose and Recover

Reduce, Reuse, Recycle, Recover and Repurpose

Reuse, Refine, Reply, Recover and Rethink

Refine, Reuse, Reduce, Respond and Reply

9. State whether the following statement is true or false: "Thermosetting plastic is very light, strong, durable and can be remoulded after being heated above a specific temperature." *

1 point

True

False

10. The most disadvantageous property of synthetic fibre is that they *

1 point

crease resistant

melt on burning.

require maintenance.

shrinkage.

11. Which of the following implement is used for sowing? *

1 point

tractor

harvester

sickle

seed drill

12. Ploughing is an important activity while preparing the soil.Which of the following statement is not correct ? *

1 point

It will help in storing the grains

It increases number of friendly microbes

It helps in removing the weeds.

It improves the water holding capacity of the soil.

13.Leguminous plants help in the replenishment of the soil with *

1 point

hydrogen

oxygen

nitrogen

carbon dioxide

14. Which of the following is not a traditional method of irrigation? *

1 point

Moat

Rahat

Drip

Dhekli

15.State whether the following statement is True or False "A farmer adds manure and fertilizers in the soil to enrich the soil with the nutrients". *

1 point

True

False

Submit​

Answer 1

1. magnetic force
2. either a magnetic or an electrostatic force
3. force of friction
4. gravitational force
5. Mass
6. jute
7. Teflon
9. true
10. crease resistant
11. tractor
12. it help in removing the weeds
13. oxygen
14. moat
15. true

hope helped you.