Advertisements
Advertisements
Question
When a bell fixed on a cycle rings, then the energy conversion that takes place is ______.
Options
Gravitational potential energy to sound energy.
Kinetic energy to sound energy.
Sound energy to electrical energy.
Sound energy to mechanical energy.
Advertisements
Solution
When a bell fixed on a cycle rings, then the energy conversion that takes place is kinetic energy to sound energy.
Explanation:
This is because ringing a bell typically requires moving a bell component, like a lever or clapper. Mechanical forces initially move these components. This mechanical force is converted into kinetic energy as the clapper moves, and this kinetic energy is then converted into sound energy when it strikes the bell.
APPEARS IN
RELATED QUESTIONS
What is the kinetic energy of an object?
Write an expression for the kinetic energy of an object.
An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?
A ball of mass M is moving with a speed v. What is its kinetic energy?
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
If the speed of a body is halved, what will be the change in its kinetic energy?
How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?
When a ball is thrown inside a moving bus, does its kinetic energy depend on the speed of the bus? Explain.
If an object has 0 momentum, does it have kinetic energy? Explain your answer.
A car of mass 120 kg is moving at a speed 18 km/h and it accelerates to attain a speed of 54 km/h in 5 seconds. Calculate:
- the work done by the engine.
- the power of the engine.
