Physical Science - Fall 2024 Final Exam (Units 1-3)

Front

What is an element's atomic number?

Back

The atomic number of an element is the number of protons in its nucleus.

Front

True/False: An element's atomic number is equal to the number of electrons.

Back

False; it is equal to the number of protons.

Front

Which subatomic particle has a negative charge?

Back

Electrons have a negative charge.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

As the mass of an object increases, what happens to its inertia?

Back

Its inertia increases.

Front

What state of matter has a definite volume and a definite shape?

Back

Solid.

Front

What state of matter has a definite volume but no definite shape?

Back

Liquid.

Front

What state of matter has neither a definite volume nor a definite shape?

Back

Gas.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.