Georgia Milestone Practice

Atoms of the same element with different numbers of neutrons are called ____.

• isotopes

• radioactive elements

• metalloids

• metals

Which of the following best describes the velocity of an object?

• 30 m/s

• 30 m/s east

• 30 m/s²

• 30 m

The diagram shows a graduated cylinder containing water. From which position will the most accurate measure of the volume of water be made?

• Position 1

• Position 2

• Position 3

• Position 4

Which graph represents zero acceleration (constant velocity)?

• A

• B

• C

• D

Most matter ____ when heated. 

• expands

• contracts

• condenses

• solidifies

Tags

NGSS.MS-PS1-4

As a sample of matter is heated, its particles ____. 

• are unaffected

• Move more quickly

• stop moving

• move more slowly

Tags

NGSS.MS-PS1-4

Elements with seven valence electrons —

• are highly reactive

• are highly stable

• have a high mass

• have a low mass

Check all that apply to the graph.

• moving away from the original position

• moving towards the original position

• object at rest

• positive acceleration

• negative acceleration

Tags

NGSS.MS-PS3-1

Lightning is ____. 

• a large discharge of static electricity

• buildup of neutrons

• a high-voltage electric current 

• harmless 

Each inner energy level of an atom has a maximum number of ____ it can hold. 

• electrons

• neutrons 

• quarks

• protons