Energy Transformations and Heat Transfer Practice

Front

What are the two forms of energy released when logs are burned in a fireplace?

Back

Light and Thermal energy.

Front

What is the process called when heat is transferred through direct contact?

Back

Conduction.

Front

What does the Law of Conservation of Energy state?

Back

Energy is neither created nor destroyed; it just moves and transforms.

Front

What is the energy conversion that occurs when a hand-held fan is turned on?

Back

Chemical > Electrical > Mechanical.

Front

Which appliance converts electrical energy to thermal energy?

Back

An electric toaster.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total energy of all the particles in an object.

Front

What is the difference between conduction, convection, and radiation?

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.

Front

What is an example of convection in everyday life?

Back

Boiling water where hot water rises and cooler water sinks.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.

Front

What is an example of energy transformation in a light bulb?

Back

Electrical energy is transformed into light and thermal energy.