1.2.1 Principle of Conservation of Energy

    Cards (28)

    • A falling object converts kinetic energy to gravitational potential energy as it rises.
      False
    • Match the mechanical system with its energy transformations:
      Pendulum ↔️ Kinetic to gravitational potential
      Bouncing Ball ↔️ Kinetic to elastic potential
      Roller Coaster ↔️ Gravitational to kinetic
    • A closed system is isolated from its surroundings
    • An open system allows energy to flow in and out of it.
      True
    • Steps in the principle of conservation of energy
      1️⃣ Energy cannot be created
      2️⃣ Energy cannot be destroyed
      3️⃣ Energy can only be transformed
      4️⃣ Total energy in a closed system remains constant
    • Match the mechanical system with its energy transformation:
      Pendulum ↔️ Kinetic to gravitational potential energy
      Bouncing Ball ↔️ Kinetic to elastic potential energy
    • A closed system is isolated from its surroundings and conserves energy internally.

      True
    • What happens to the total energy in a closed system if no energy is exchanged with the surroundings?
      It remains constant
    • When lifting a book, you give it gravitational potential energy
    • In a closed system, energy is conserved within the system
    • What is a closed system in terms of energy exchange?
      No energy exchange
    • Match the system type with its characteristic:
      Open System ↔️ Energy can flow in and out
      Closed System ↔️ Energy is conserved within the system
    • Energy can be transformed into forms such as kinetic, potential, thermal, and electrical
    • What type of energy is gained when you lift a book?
      Gravitational potential energy
    • What type of energy does a roller coaster gain as it climbs uphill?
      Gravitational potential energy
    • Match the mechanical system with its energy transformation:
      Pendulum ↔️ Kinetic to gravitational potential
      Bouncing Ball ↔️ Gravitational potential to elastic potential
    • Match the system type with its example:
      Open System ↔️ Car engine
      Closed System ↔️ Sealed thermos
    • Energy can only be transformed into kinetic, potential, thermal, and electrical forms.

      True
    • The principle of conservation of energy states that energy cannot be created or destroyed
    • The total energy in a closed system remains constant during energy transformations.
      True
    • An open system allows energy to flow in and out of the system.

      True
    • In a closed system, energy is conserved
    • What is an example of a closed system mentioned in the material?
      Pendulum
    • A falling object demonstrates the conversion of kinetic energy to gravitational potential energy.
      True
    • In mechanical systems, energy is transformed between kinetic and potential
    • In mechanical systems, energy transformations demonstrate the principle of conservation of energy
    • What happens to the total energy of a system when a roller coaster descends a hill?
      It remains constant
    • Energy is neither created nor destroyed, but transformed