Question

what machine can convert or change kinetic energy into electrical energy?
○ battery
○ solar panel
○ generator
○ engine

question 4
2 pts
when something is moving, it has ____ energy?
○ kinetic
○ potential
○ gravitational

Explanation:

First Question (What machine can convert or change kinetic energy into electrical energy?)

• A battery converts chemical energy to electrical energy, so it's not correct.
• A solar panel converts solar (light) energy to electrical energy, so it's not correct.
• A generator works on the principle of electromagnetic induction, where mechanical (kinetic) energy is used to rotate a coil in a magnetic field to produce electrical energy.
• An engine (like a car engine) converts chemical energy (from fuel) to mechanical energy, not kinetic to electrical. So the correct option is Generator.

• Kinetic energy is defined as the energy an object possesses due to its motion.
• Potential energy is the energy stored in an object due to its position or state (like gravitational potential energy due to height, elastic potential energy in a spring).
• Gravitational energy is a type of potential energy related to an object's height in a gravitational field. So when an object is moving, it has kinetic energy.

Answer:

C. Generator

Second Question (When something is moving, it has ______ energy?)