Energy 4th Flashcard

Front

What is sound energy?

Back

Sound energy is a form of energy produced when an object vibrates, creating sound waves that travel through a medium such as air, water, or solids.

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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. It is associated with the motion and position of an object.

Front

What forms of energy are represented by thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object and is often associated with heat.

Front

What is light energy?

Back

Light energy is a form of electromagnetic radiation that is visible to the human eye. It is produced by the movement of photons and can be emitted by sources like the sun or light bulbs.

Front

How does thermal energy affect ice?

Back

Thermal energy can cause ice to melt by increasing the temperature of the ice, which provides the energy needed for the ice molecules to break free from their solid structure.

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What is the relationship between energy and work?

Back

Energy is the capacity to do work. When work is done on an object, energy is transferred to that object, resulting in a change in its state or motion.

Front

What is the principle of conservation of energy?

Back

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

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What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as gravitational potential energy, which depends on height.

Front

What is the difference between thermal energy and temperature?

Back

Thermal energy is the total energy of all the particles in an object, while temperature is a measure of the average kinetic energy of those particles.