Advertisements
Advertisements
प्रश्न
Give one example where a force changes the shape (and size) of a body.
Advertisements
उत्तर
The shape of kneaded wet clay (geeli mitti) changes when a potter converts it into pots of different shapes and sizes. This happens because the potter applies force on the kneaded wet clay.
APPEARS IN
संबंधित प्रश्न
Name the unbalanced force which slows down a moving bicycle when we stop pedalling it.
State whether force is a scalar or a vector quantity?
Fill in the following blank with suitable word :
When a stationary car starts suddenly, the passengers are jerked …………………..
Give one example where a force stops a moving body.
What type of forces – balanced or unbalanced – act on a rubber ball when we press it between our hands ? What effect is produced in the ball ?
Why are road accidents at high speeds very much worse than road accidents at low speeds ?

There are two types of forces X and Y. The forces belonging to type X can produce motion in a stationary object but cannot change the shape of the object. On the other hand, forces belonging to type Y cannot produce motion in a stationary object but can change the object. What is the general name of the forces as (a) X, and (b) Y?
A 1000 kg vehicle moving with a speed of 20 m/s is brought to rest in a distance of 50 metres :
(i) Find the acceleration.
(ii) Calculate the unbalanced force acting on the vehicle.
Give one example where a force stops a moving body .
If we release a magnet held in our hand, it falls to the ground. The force which makes the magnet fall down is an example of :
