Energy stores

• What are energy stores?

  Different ways of storing energy
• How is energy transferred between energy stores?

  It can be transformed and held in different stores
• What are the eight energy stores you need to know?

  1. Kinetic
  2. Thermal
  3. Chemical
  4. Gravitational Potential
  5. Elastic Potential
  6. Electrostatic
  7. Magnetic
  8. Nuclear
• What is kinetic energy associated with?

  Anything that is moving
• What does the thermal energy store release?

  Heat energy
• What is an example of a chemical energy store?

  Food, fuel, or batteries
• What does gravitational potential energy depend on?

  Height above the Earth's surface
• What is elastic potential energy associated with?

  Objects that can bounce back
• What is electrostatic energy related to?

  Charges that attract or repel each other
• What does magnetic energy involve?

  Magnets that attract or repel each other
• What is nuclear energy released from?

  Nuclear reactions
• What happens to an object's kinetic energy when it speeds up?

  Energy is transferred to its kinetic energy store
• How does mass affect kinetic energy?

  More mass means more kinetic energy
• How does speed affect kinetic energy?

  More speed means more kinetic energy
• What is the formula for kinetic energy?

  $KE =$$0.5 \times m \times v^2$
• If an object's mass is doubled, what happens to its kinetic energy?

  Kinetic energy also doubles
• If an object's speed is doubled, what happens to its kinetic energy?

  Kinetic energy quadruples
• Calculate the kinetic energy of a car with mass 1450 kg traveling at 28 m/s.

  570,000 J
• What energy does an object have when it is at height?

  Gravitational potential energy
• How do you calculate the change in gravitational potential energy?

  $\Delta GPE =$$m \times g \times \Delta h$