Science
Fill in the blanks in the following statements.
(a) To draw water from a well, we have to …………… at the rope.
(b) A charged body …………… an uncharged body towards it.
(c) To move a loaded trolley, we have to …………… it.
(d) The north pole of a magnet …………… the north pole of another magnet.
Force
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Answer
(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 a loaded trolley, we have to pull or push it.
(d) The north pole of a magnet repels the north pole of another magnet.
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Related Questions
Give two examples each of situations in which you push or pull to change the state of motion of objects.
Give two examples of situations in which applied force causes a change in the shape of an object.
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information, fill up the gaps in the following statements using the following terms.
muscular, contact, non-contact, gravity, friction, shape, attraction
(a) To stretch the bow, the archer applies a force that causes a change in its ……………
(b) The force applied by the archer to stretch the bow is an example of …………… force.
(c) The type of force responsible for a change in the state of motion of the arrow is an example of a …………… force.
(d) While the arrow moves towards its target, the forces acting on it are due to …………… and that due to …………… of air
In the following situations, identify the agent exerting the force and the object on which it acts. State the effect of the force in each case.
(a) Squeezing a piece of lemon between the fingers to extract its juice.
(b) Taking out paste from a toothpaste tube.
(c) A load suspended from a spring while its other end is on a hook fixed to a wall.
(d) An athlete making a high jump to clear the bar at a certain height.