Question

lightning is an example of *
electrical energy
potential energy
nuclear energy
kinetic energy

what kind of energy transfer occurs in a toaster? *
thermal energy > electrical energy
kinetic energy > potential energy
mechanical energy > thermal energy
electrical energy > thermal energy

what kind of energy does someone lifting a hammer have? *
sound
mechanical
electrical
radiant

Explanation:

1. Lightning involves the flow of electric charge, so it is electrical energy.
2. A toaster uses electricity to produce heat, so energy transfers from electrical to thermal.
3. Lifting a hammer involves physical movement (kinetic) and position (potential), both types of mechanical energy.

Answer:

1. electrical energy
2. electrical energy > thermal energy
3. Mechanical