Practice Final; Fall Semester (LAHS '24-'25)

Front

What does Boyle's Law state about the relationship between pressure and volume of a gas?

Back

As the pressure of a gas increases, the volume decreases, and vice versa, when temperature is held constant.

Front

What happens to an electron when it absorbs light?

Back

The electron jumps from a lower to a higher energy level.

Front

Why is it important to have multiple, repeated trials in an experiment?

Back

To have enough information to take an average value of the results.

Front

Which element is the best conductor of electricity?

Back

Silver is the best conductor of electricity.

Front

To which group in the periodic table do alkali metals belong?

Back

Alkali metals belong to Group 1.

Front

What is the definition of an independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment.

Front

What is the definition of a dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment.

Front

What is the significance of the atomic number of an element?

Back

The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.

Front

What is the principle of conservation of mass?

Back

The principle states that mass is neither created nor destroyed in a chemical reaction.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.