Unit 4 - Energy

Name the 5 stores of energy.

• Thermal (internal), chemical, kinetic, gravitational potential, and elastic potential.

• Thermal (internal), nuclear, sound, gravitational potential, and elastic potential.

• Thermal (internal), chemical, light, gravitational potential, and elastic potential.

• Thermal (internal), chemical, kinetic, nuclear, and sound.

Name the 4 energy pathways.

• Mechanical, electrically, waves and heating.

• Chemical, nuclear, gravitational and thermal.

• Kinetic, potential, sound and light.

• Magnetic, elastic, friction and pressure.

Define the Law of Conservation.

• Energy cannot be created or destroyed, but it can be transferred from one store to another.

• Energy can be created and destroyed, but it cannot be transferred.

• Energy is always created and never destroyed.

• Energy is always destroyed and never created.

Define thermal (internal) store.

• Due to the vibrations of the particles in an object. The faster the particles move, the hotter the object.

• Due to the gravitational pull on the object.

• Due to the chemical composition of the object.

• Due to the electrical charge within the object.

Define elastic potential energy store.

• The energy stored when an object is stretched, squashed or twisted.

• The energy stored in an object due to its motion.

• The energy stored in chemical bonds.

• The energy stored in the nucleus of an atom.

Define gravitational potential energy store.

• The energy stored in an object that has been lifted from the ground.

• The energy stored in a moving object.

• The energy stored in a compressed spring.

• The energy stored in a chemical reaction.

Define kinetic energy store.

• The energy stored in a moving object.

• The energy stored in a stationary object.

• The energy stored in a compressed spring.

• The energy stored in a charged battery.

Define chemical energy store.

• The energy stored in the bonds between atoms and molecules.

• The energy stored in the nucleus of an atom.

• The energy stored in the motion of objects.

• The energy stored in the form of heat.

Define energy transfer.

• Energy is transferred from one energy store to another.

• Energy is created from nothing.

• Energy is destroyed when used.

• Energy is stored indefinitely without loss.

What is the unit of measurement for energy?

• Joule

• Watt

• Newton

• Pascal