Energy Transformations and Conservation Quiz

Potential energy is stored energy due to an object's position or configuration, like a stretched rubber band.

Chemical energy stored in the battery is converted to electrical energy to power the flashlight.

Kinetic energy is energy of motion, like a rolling ball.

Charging a battery involves electrical energy, not typically heat generation.

Mechanical energy encompasses both kinetic energy (motion) and potential energy (position).

The Law of Conservation of Energy states that the total energy in a closed system remains constant over time.

Energy can change from one form to another, but the total amount of energy remains constant.

Water held at a height has potential energy that converts to kinetic energy as it flows through turbines.

The Joule is the standard unit of energy in the International System of Units (SI).

Chemical energy is stored within the chemical bonds of molecules.

Nuclear energy is stored within the nucleus of an atom and released during nuclear reactions.

A motor converts electrical energy into mechanical energy, driving motion.

Efficiency is the ratio of useful work output to total work input, here it's (80/100) * 100 = 80%.

Solar panels convert sunlight (solar energy) into electrical energy.

Efficiency = (Useful energy output / Total energy input) * 100, here it's (250/500) * 100 = 50%.

Wind turbines convert kinetic energy from the wind into electrical energy.

Thermal energy is the internal energy of a substance due to the random motion of its particles.