Physics
Grade-7
Easy

Question

Direction :Which energy is being used by the following appliance initially?
Headphones

  1. Electrical energy
  2. Chemical energy
  3. Sound energy
  4. Muscular energy

hintHint:

The energy produced from headsets is sound energy.

The correct answer is: Sound energy


    • The headphones are small gadgets that produce sound energy.
    • The sound energy is converted into mechanical energy.
    • The magnets in the headphones are the source of energy.

    Related Questions to study

    Grade-7
    Physics

    Flashlight

    Flashlight

    PhysicsGrade-7
    Grade-7
    Physics

    Sun

    Sun

    PhysicsGrade-7
    Grade-7
    Physics

    Playing Speaker

    Playing Speaker

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    Electric heater

    Electric heater

    PhysicsGrade-7
    Grade-7
    Physics

    Moving car

    Moving car

    PhysicsGrade-7
    Grade-7
    Physics

    Ball on a hill

    Ball on a hill

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    What is the new gravitational potential energy when the height becomes
    h over 5

    What is the new gravitational potential energy when the height becomes
    h over 5

    PhysicsGrade-7
    Grade-7
    Physics

    What is the new gravitational potential energy when the height becomes
    5 h

    What is the new gravitational potential energy when the height becomes
    5 h

    PhysicsGrade-7
    Grade-7
    Physics

    What is the new gravitational potential energy when the height becomes
    h over 4

    What is the new gravitational potential energy when the height becomes
    h over 4

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    What is the new gravitational potential energy when the height becomes
    4 h

    What is the new gravitational potential energy when the height becomes
    4 h

    PhysicsGrade-7
    Grade-7
    Physics

    Which object has more gravitational potential energy when the mass is constant?

    Which object has more gravitational potential energy when the mass is constant?

    PhysicsGrade-7
    Grade-7
    Physics

    The height of an object is ____ proportional to its gravitational potential energy.

    The height of an object is ____ proportional to its gravitational potential energy.

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    What can you say about the gravitational potential energy when both have the same mass?

    What can you say about the gravitational potential energy when both have the same mass?

    PhysicsGrade-7
    Grade-7
    Physics

    Which object has less gravitational potential energy when both have the same mass?

    Which object has less gravitational potential energy when both have the same mass?

    PhysicsGrade-7
    Grade-7
    Physics

    Which object has more gravitational potential energy when both have the same mass?

    Which object has more gravitational potential energy when both have the same mass?

    PhysicsGrade-7
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.