Question

Q1. Fill in the blanks:

1. A ____________________ is an inclined plane wrapped around a pole.

2. Muscular force is the force exerted by our ____________________.

3. ____________________ is the ability to do work.

4. ____________________ is a push or pull.

5. The force which slows down or stops a moving body is called ____________________.

6. ____________________ is done when force applied on an object moves it.

7. The ____________________ is the main source of energy on earth.

8. The energy possessed by wind is used to turn ____________________.

9. The smallest particles of which molecules are composed are called

____________________.

10.The energy obtained from the sun is called ____________________ energy.

11.The sloping surface which connects a lower level to a higher level is known as

____________________.

12.A ____________________ is a grooved wheel with a rope or cable around it.

13.Machines makes our work easier and ____________________.

14.The wheel and axle help us to move or ____________________ objects.

15. A ____________________ is a long rod which rests upon a support and is used to lift

weights.​

Answer 1

Answer:

1) Screw

2)Muscles

3) Energy

4)Force

5) Friction

6) Work

7)The sun

8) Kinetic energy

9) atoms

10)Solar energy

11) Inclined plane

12)Pulley

13)

14)

15)

I am really very sorry but I don't know the answer of Q13,Q14 and Q15 :-(

Answer 2

Answer:1.screw2.muscles3.energy4.force5.friction6.work7.the sun8.kinetic energy9.atoms10.solar energy 12.pulley