Science STAAR Review

Front

What is the mass of an atom with 10 protons, 10 neutrons, and 10 electrons?

Back

20

Front

Why does a soccer ball come to a stop after being kicked across a grassy field?

Back

Friction with the grass applies a net force on the ball causing it to decrease its speed.

Front

If the mass number of a chlorine atom is 36, how many neutrons does it have?

Back

19

Front

What do we call the vertical columns in the Periodic Table?

Back

Groups

Front

Elements in the same ___________ are most likely to have similar chemical and physical properties.

Back

Group

Front

What is the definition of mass number?

Back

The total number of protons and neutrons in an atom's nucleus.

Front

What is Newton's first law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the role of friction in motion?

Back

Friction opposes the motion of an object, causing it to slow down or stop.

Front

What is the difference between a group and a period in the periodic table?

Back

A group is a vertical column, while a period is a horizontal row.