2023 6th Grade Fall Semester Test

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as from chemical energy to thermal energy.

Front

What are the three main types of energy involved in the energy transformation from a battery to a computer's light?

Back

Chemical, electrical, and light energy.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

Which substance in the equation CO + H2O --> CO2 + H2 is classified as an element?

Back

H2 (hydrogen) is classified as an element.

Front

What energy transformation occurs when a car burns gasoline?

Back

The energy transformation is chemical to thermal to mechanical.

Front

What is a hydroelectric power plant?

Back

A hydroelectric power plant generates electricity by using flowing water to turn a turbine connected to a generator.

Front

What energy transformation occurs in a hydroelectric power plant?

Back

Mechanical energy is transformed into electrical energy.

Front

What is the definition of mechanical energy?

Back

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

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, related to the motion of particles.

Front

What is the role of a turbine in a hydroelectric power plant?

Back

The turbine converts the energy of flowing water into mechanical energy.