Advertisements
Advertisements
Question
When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :
Options
balanced forces
centripetal forces
unbalanced forces
centrifugal forces
Advertisements
Solution
balanced force
This is because a balanced force changes the shape of the 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 blank with suitable word:
When a running car stops suddenly, the passengers are jerked …………………..
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 one example where a force changes the direction of a moving body.
Give one example where a force changes the shape (and size) of a body.
What happens to the passengers travelling in a bus when the bus takes a sharp turn ? Give reasons for your answer.

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 .
When we talk of a force acting on a body, it usually means :
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 :
