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Question 1
Give two examples each of situations in which you push or pull to change the state of motion of objects.
Answer:
Two examples of push force are as follows:
(0) A heavy box at rest is pushed to move it from one room to another. This changes
the state of motion of the box.
(0) A player pushes a football using his foot. This changes the state of motion of the bal.
Two examples of pull force are as follows:
(3) Rope is pulled to draw water from a well. This changes the state of motion of the water bucket
(ii) A drawer is pulled to open it. This changes the state of motion of the drawer.
Question 2
Give two examples of situations in which applied force causes a change in the shape of an object
Answer:
Two examples of forces that cause a change in the shape of an object are as follows:
(1) Squeezing of a plastic bottle changes the shape of the bottle.
(ii) Deformation of clay by pressing it between the hands.
Question 3:
Fill in the blanks in the following statements.
at the rope
an uncharged body towards it.
(a) To draw water from a well we have to (b) A charged body (c) To move loaded trolley we have to (d) The north pole of a magnet Answer:
it.
the north pole of another magnet.
(a) To draw water from a well we have to pull at the rope.
(b) A charged body attracts an uncharged body towards it.
(c) To move loaded trolley we have to either push or pull it.
