GMAS Prep

Front

What is a circuit?

Back

A circuit is a closed path through which electricity flows, consisting of a power source, conductors, and a load.

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily, such as copper or aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily, such as rubber or glass.

Front

What is the purpose of a battery in a circuit?

Back

A battery provides the electrical energy needed to power the circuit.

Front

What is the role of a switch in a circuit?

Back

A switch is used to open or close a circuit, controlling the flow of electricity.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as wind or water.

Front

What indicates a chemical change has occurred?

Back

A chemical change is indicated by the formation of new substances, such as rust forming on metal.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What happens when sugar dissolves in water?

Back

When sugar dissolves in water, it undergoes a physical change, forming a solution.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not create new substances, while a chemical change results in the formation of new substances.