3.1 Energy Stores and Transfers

• Match the energy store with its description:

  Kinetic ↔️ Energy of a moving object

  Thermal ↔️ Energy due to temperature

  Gravitational Potential ↔️ Energy due to height
• Where is chemical energy stored?

  In chemical bonds
• An energy store is a location or system where energy is stored
• Energy transfer is the movement of energy from one place or object to another
• What is an energy store?

  A location where energy is stored
• Thermal energy is stored in objects due to their temperature.


  True
• What is an example of nuclear energy in use?

  Nuclear reactor
• What is an example of kinetic energy in action?

  A car driving
• Magnetic energy is stored in a magnetic field
• Gravitational potential energy depends on both mass and height.

  True
• What is conduction in energy transfer?

  Energy transfer through direct contact
• What is radiation as a type of energy transfer?

  Energy transfer through electromagnetic waves
• Conservation of energy can be applied to simple systems
• Energy stored in a magnetic field is called magnetic
• Boiling water is an example of thermal energy.


  True
• Match the energy store with its example:

  Chemical ↔️ Food

  Magnetic ↔️ Electromagnet

  Electrostatic ↔️ Charged capacitor

  Nuclear ↔️ Nuclear reactor
• Where is nuclear energy stored?

  Atomic nuclei
• What is an example of energy transfer by convection?

  Heat rising from a radiator
• What is an example of energy transfer by radiation?

  Warmth from the sun
• Match the type of heating with its example:

  Conduction ↔️ Heat flowing through a metal pan

  Convection ↔️ Heat rising from a radiator

  Radiation ↔️ Warmth from the sun
• Heating is the transfer of energy from a hotter object to a cooler object.
• An energy store is a location or system where energy is stored
• The conservation of energy principle ensures that energy is neither lost nor gained in a closed system.


  True
• The energy store associated with a moving car is kinetic
• What is energy transfer?

  Movement of energy
• Radiation can transfer energy without the need for a physical medium.


  True
• What type of energy transfer is involved when lifting a book against gravity?

  Mechanical work
• What does the principle of conservation of energy state?

  Energy is neither created nor destroyed
• When a ball is lifted against gravity, what type of energy increases?

  Gravitational potential energy
• Convection involves the movement of fluids to transfer energy.


  True
• The principle of conservation of energy states that energy cannot be created or destroyed.


  True
• What is an example of energy transfer by radiation?

  Warmth from the sun reaching Earth
• The energy of a moving object is called kinetic
• Energy stored in a stretched rubber band is called elastic potential
• A charged capacitor stores electrostatic
• Conduction involves the transfer of energy through direct contact between objects.


  True
• Heating a metal pan on a stove is an example of conduction.


  True
• Electrical work involves the movement of electric charges.


  True
• Energy is neither created nor destroyed, but merely transformed from one form to another.

  True
• What happens to energy when you lift a book in terms of its gravitational potential energy?

  Increases