Science 7 - Baehr - Energy Transformations

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons. It can be classified as either kinetic energy (KE) or potential energy (PE), depending on the circumstances.

Front

What type of energy is sound energy classified as?

Back

Sound energy is classified as kinetic energy (KE) because it involves the movement of particles in a medium.

Front

What form of energy does gasoline represent?

Back

Gasoline represents chemical energy, which is stored in the bonds of chemical compounds.

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting chemical energy in gasoline to mechanical energy in a car.

Front

What type of energy does a bow and arrow represent?

Back

A bow and arrow represent mechanical energy, which is the energy of motion and position.

Front

Define potential energy (PE).

Back

Potential energy (PE) is the stored energy in an object due to its position or state, such as a stretched spring or an object at height.

Front

Define kinetic energy (KE).

Back

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

Front

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

Back

In a light bulb, electrical energy is transformed into light energy and thermal energy (heat).

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object, related to its motion and position.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, released during a chemical reaction.