Energy Transformation Flashcard

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like atoms and molecules. It is released or absorbed during a chemical reaction.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a rock at the top of a hill has gravitational potential energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object that is used to do work.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, which is related to its temperature.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an example of energy transformation in digestion?

Back

In digestion, chemical energy from food is transformed into mechanical energy for movement and thermal energy for body heat.

Front

What are the two types of energy present in a roller coaster?

Back

A roller coaster has kinetic energy (when moving) and potential energy (at the top of a hill).

Front

What is an example of mechanical energy?

Back

Examples of mechanical energy include a hammer striking a nail, a windmill turning, and a wrecking ball swinging.

Front

What device transforms electrical energy into mechanical energy?

Back

A pencil sharpener plugged into a wall outlet transforms electrical energy into mechanical energy to sharpen pencils.