Question

Q. Fill in the blanks:
1) A force is a ________ or a _________ acting on an object.
2) The force of __________ pulls everything down.
3) When a force moves an object, __________ is done.
4) A moving football comes to a stop after some time because of the
force of __________.
5) A tool that makes our task easier and faster is called a
__________________________.
6) The main source of all energy on earth is the _________.
7) _________________ is a machine with rotating blades.
8) Plants use _____________ energy to make food with the help of their
leaves.
9) ____________ is an inclined plane wrapped around a cylinder.
10) __________________________ gave the theory of gravitation.
Q. Unscramble the following to write the names of simple machines:

ELUPLY -
RWECS -
VERLE -
EHLWE DNA EAXL -
GDEWE -

Answer 1

Answer:

1)A force is a push or pull acting upon an object as a result of its interaction with another object.

2)Gravity

3)Work

4)FRICTIONAL FORCE IS A FORCE WHICH ACTS OPPOSITE TO THE APPLIED FORCE.

5)A machine

6)the sun

7)A machine powered by rotating blades is a turbines

8)photosynthesis

9)A screw is an inclined plane wrapped around a cylinder.

10)Isaac Newton

Q)

1)

2)Screw

3)

4)

5)

Explanation:

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Answer 2

Answer:

1) push , pull

2)gravitation

3)work

4)friction

5) a machine

6)the sun

7)a turbines

8)photosynthesis

9)screw

10)Newnton