Advertisements
Advertisements
Question
When a rubber balloon held between the hands is pressed, its shape changes. This happens because :
Options
balanced forces act on the balloon
unbalanced forces act on the balloon
frictional forces act on the balloon
gravitational forces act o the balloon
Advertisements
Solution
balanced forces act on the balloon.
Balanced forces are responsible for bringing about a change in the shape of an object.
APPEARS IN
RELATED QUESTIONS
An object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason.
Fill in the following blanks with suitable word :
If there were no unbalanced force of……………….. and no…………………. resistance, a moving bicycle would go on moving for ever.
Give reason for the following :
When a hanging carpet is beaten with a stick, the dust particles start coming out of it.
Explain why, it is dangerous to jump out of a moving bus.
Give one example where a force stops a moving body.
Give one example where a force changes the shape (and size) of a body.
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?
When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :
Which of the following effect cannot be produced by an unbalanced force acting on a body?
