8th grade physical Science Review

Front

What are the subatomic particles that make up an atom?

Back

Electrons, protons, neutrons.

Front

What does the number 6 represent in an element's notation?

Back

Atomic number.

Front

What type of force produces a nonzero net force that changes an object's motion?

Back

Unbalanced Force.

Tags

NGSS.MS-PS2-2

Front

What is a substance with a pH less than 7 called?

Back

Acid.

Front

Which liquid is the most dense?

Back

Syrup.

Front

What is the term for the center of an atom?

Back

Nucleus.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Tags

NGSS.MS-PS2-3

Front

What is the term for a substance that has a pH greater than 7?

Back

Base.

Front

What is the term for the force that opposes motion between two surfaces in contact?

Back

Friction.