1. A larger unit of energy is the kilowatt-hour (kWh), which equals 3,600,000 joules (J). It is commonly used for measuring electrical energy consumption.

    A larger unit of energy is the kilowatt-hour (kWh), which equals 3,600,000 joules (J). It is commonly used for measuring electrical energy consumption.

    See less
    • 4
  2. The unit of energy is the joule (J). Energy and work are directly related; one joule is the amount of work done when a force of one newton moves an object one meter.

    The unit of energy is the joule (J). Energy and work are directly related; one joule is the amount of work done when a force of one newton moves an object one meter.

    See less
    • 4
  3. When a child winds a toy car and places it on the floor, the stored potential energy converts into kinetic energy, causing the car to move forward as the wound-up mechanism unwinds, propelling it.

    When a child winds a toy car and places it on the floor, the stored potential energy converts into kinetic energy, causing the car to move forward as the wound-up mechanism unwinds, propelling it.

    See less
    • 2
  4. When energy is transferred from one object to another, the receiving object gains energy, which can result in changes such as movement, increased temperature, or deformation. The total energy remains constant, following the law of conservation of energy.

    When energy is transferred from one object to another, the receiving object gains energy, which can result in changes such as movement, increased temperature, or deformation. The total energy remains constant, following the law of conservation of energy.

    See less
    • 2
  5. If a balloon is pressed too hard, the internal pressure increases beyond its elastic limit, causing the balloon to burst. The rapid release of stored air results in a loud pop and scattered pieces.

    If a balloon is pressed too hard, the internal pressure increases beyond its elastic limit, causing the balloon to burst. The rapid release of stored air results in a loud pop and scattered pieces.

    See less
    • 3