Question

1. what form of energy is a moving car? *

potential energy
mechanical energy
electrical energy
it is not energy

Explanation:

• For the first question:
• When a stretched rubber band is released, its elastic potential energy is converted into kinetic energy. When a ball falls off a shelf, its gravitational potential energy is converted into kinetic energy. When a bike coasts down a hill, its gravitational potential energy (and possibly some stored chemical energy in the rider's body if pedaling was involved earlier, but mainly gravitational) is converted into kinetic energy. Compressing a spring stores elastic potential energy, it does not convert energy into kinetic energy at that moment (the conversion would be when the spring is released).
• For the second question:
• A moving car has kinetic energy. Mechanical energy is the sum of potential and kinetic energy. Since the car is in motion (has kinetic energy which is a part of mechanical energy), we consider the form of energy for a moving car as mechanical energy. Potential energy is stored energy (e.g., due to height or compression/stretching). Electrical energy is related to the flow of electric charge. And a moving car definitely has energy.

Answer:

1. Compressing a spring (is the option where energy is not being changed into kinetic energy).
2. Mechanical Energy.