Energy Transformations and Conservation of Energy

Front

What does gravitational potential energy depend on?

Back

Height and mass.

Front

Where is potential energy the greatest when a ball is projected into the air?

Back

At the highest point of its trajectory.

Front

What type of energy transformation occurs in a microwave oven?

Back

Electrical energy is transformed into thermal and light energy.

Front

What does the Law of Conservation of Energy state?

Back

The total amount of energy before and after an energy transformation is the same.

Front

What energy transformation occurs when water falls through a dam and turns a turbine?

Back

Mechanical energy is transformed into electrical energy, which is then transformed into radiant energy.

Front

Define kinetic energy.

Back

The energy an object has due to its motion.

Front

What is the formula for calculating gravitational potential energy?

Back

Potential Energy (PE) = mass (m) × gravitational acceleration (g) × height (h).

Front

What is the difference between renewable and non-renewable energy sources?

Back

Renewable energy sources can be replenished naturally (e.g., solar, wind), while non-renewable sources cannot (e.g., fossil fuels).

Front

What is mechanical energy?

Back

The sum of potential energy and kinetic energy in an object.

Front

What is thermal energy?

Back

The energy that comes from the temperature of matter; it is the total kinetic energy of particles in an object.