1.1.1 Identifying Different Energy Stores

• Nuclear energy is stored within the nucleus of an atom
• Energy systems are collections of objects that interact to transfer energy between stores.
• What type of energy system exchanges both energy and matter with its surroundings?

  Open system
• Energy stores are the different forms in which energy can be stored within an object or system
• What type of energy does an object possess due to its motion?

  Kinetic energy
• Potential energy is energy stored due to position or configuration
• What type of potential energy does an object have due to its height above a reference point?

  Gravitational potential energy
• Elastic potential energy is stored in an object when it is stretched or compressed.
• Chemical potential energy is energy stored within the bonds of molecules
• What is thermal energy defined as?

  Total kinetic energy
• Magnetic energy is stored in a magnetic field.
• Where is electrostatic energy stored?

  In an electric field
• A closed system exchanges energy but not matter
• An isolated system exchanges neither energy nor matter with its surroundings.
• Kinetic energy is the energy of an object due to its motion
• What type of energy does a ball on a shelf possess?

  Potential energy
• Chemical energy is stored in molecular bonds
• What type of energy is due to motion?

  Kinetic energy
• Match the energy store with its description:

  Kinetic energy ↔️ Energy due to motion

  Potential energy ↔️ Energy stored due to position

  Magnetic energy ↔️ Energy stored in a magnetic field

  Nuclear energy ↔️ Energy stored in the nucleus
• Thermal energy is the energy due to heat.
• Order the types of energy systems based on their interaction with the surroundings:

  1️⃣ Open systems

  2️⃣ Closed systems

  3️⃣ Isolated systems
• A closed system exchanges energy but not matter
• What is an example of kinetic energy in action?

  A moving car
• Kinetic energy is the energy stored due to position.

  False
• Elastic potential energy is an example of energy stored in a stretched rubber band.
• Where is chemical energy stored in a car engine?

  Fuel
• Order the energy transfers involved in driving a car:

  1️⃣ Chemical energy in fuel

  2️⃣ Kinetic energy of engine
• Match the scenario with the primary energy transfers:

  Driving a car ↔️ Chemical to kinetic

  Heating water ↔️ Electrical to thermal

  A falling ball ↔️ Potential to kinetic

  Using a battery ↔️ Chemical to electrical