Physical Science Final Exam Practice

How many valence electrons are in this structure?

• 2
• 4
• 7
• 8

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NGSS.MS-PS1-1

Which of the following are states of matter? (Mark all 4 that apply

• Gas
• Solid
• Liquid
• Plasma
• Sublimation

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Ionic bonding involves

• 2 metallic atoms
• Giving or taking electrons from another element to bond (metal and nonmetal)
• Transferring of neutrons to gain mass
• Gaining of protons to repel

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NGSS.MS-PS1-5

Which of the following forms of matter can be found in ice, most cooled metals, and is hard to the touch?

• Plasma
• Solid
• Liquid
• Gas

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

How many electrons does Potassium contain?

• 2
• 8
• 19
• 39

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NGSS.MS-PS1-1

What does it mean for an element to decay and eventually become "stable?" (Ex: Uranium-238---> Lead-206)

• It is no longer radioactive and has the same amount of protons and neutrons
• It is at its most radioactive state
• It has created a covalent bond with another radioactive element
• It has achieved 8 valence electrons

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NGSS.HS-PS1-8

Measurement of how acidic or basic a substance is:

• Valence electrons
• pH scale
• Neutralization
• Litmus test

Which of the following is the correct definition of velocity?

• An object's change in position relative to a reference point
• Speed in a given direction
• How far something has traveled
• An example

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NGSS.MS-PS3-1

Which of the following is an example of a force at work?

• An elephant pushing over a tree
• A rock sitting on the ground
• A bird standing on a rock
• The sun giving off heat and light through radiation

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NGSS.3-PS2-1

NGSS.3-PS2-2

Which of the following pictures best represents chemical energy?

• 
• 
• 
• 

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NGSS.MS-LS1-6