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प्रश्न
When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :
विकल्प
balanced forces
centripetal forces
unbalanced forces
centrifugal forces
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उत्तर
balanced force
This is because a balanced force changes the shape of the object.
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संबंधित प्रश्न
State whether the following statement is true or false :
Unbalanced forces acting on a body change its shape.
Which of the two, balanced forces or unbalanced forces, can change the shape of an object ? Give an example to illustrate your answer.
Explain why, it is dangerous to jump out of a moving bus.
Give one example where a force changes the shape (and size) of a body.
What do you understand by the terms “balanced forces” and “unbalanced forces” ? Explain with examples.
A car is moving on a level road. If the driver turns off the engine of the car, the car’s speed decreases gradually and ultimately it comes to a stop. A student says that two forces act on the car which bring it to a stop. What could these forces be ? Which of these two forces contributes more to slow down and stop the car ?
What is the relationship between force and acceleration ?
Which of the following effect cannot be produced by an unbalanced force acting on a body?
A boy of mass 50 kg standing on ground exerts a force of 500 N on the ground. The force exerted by the ground on the boy will be :
Why does it happen?
If a stationary bus suddenly speeds up, passengers are thrown in the backward direction.
