Unit 1 Review

Multiple Choice

T/F. Particles in a solid VIBRATE in place.

• True

• False

Multiple Choice

WHICH OF THE FOLLOWING BEST APPLIES TO SOLIDS?

• SOLIDS HAVE A DEFINITE SHAPE AND DEFINITE VOLUME.

• SOLIDS HAVE NO DEFINITE SHAPE AND DEFINITE VOLUME.

• SOLIDS HAVE A DEFINITE SHAPE BUT NO DEFINITE VOLUME.

Multiple Choice

WHICH OF THE FOLLOWING BEST APPLIES TO LIQUIDS?

• LIQUIDS HAVE A DEFINITE SHAPE AND DEFINITE VOLUME.

• LIQUIDS HAVE NO DEFINITE SHAPE AND DEFINITE VOLUME.

• LIQUIDS HAVE A DEFINITE SHAPE BUT NO DEFINITE VOLUME.

Multiple Choice

WHICH OF THE FOLLOWING BEST APPLIES TO GASES?

• GASES HAVE NO DEFINITE SHAPE AND NO DEFINITE VOLUME.

• GASES HAVE NO DEFINITE SHAPE AND DEFINITE VOLUME.

• GASES HAVE A DEFINITE SHAPE BUT NO DEFINITE VOLUME.

Multiple Choice

What is the temperature at which a liquid changes to a gas?

• liquid point

• gas point

• melting point

• boiling point

Multiple Choice

What is the temperature at which a solid changes to a liquid?

• liquid point

• solid point

• melting point

• boiling point

Multiple Choice

Use the image to help you. What is the process of a gas changing to liquid?

• condensation

• evaporation

• sublimation

• deposition

Multiple Choice

Use the image to help you. What is the process of a gas changing to solid?

• condensation

• evaporation

• sublimation

• deposition

Density

Key Vocabulary

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Density

Density is the amount of matter in a given space, or the ratio of mass to volume.

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Mass

Mass is a measure of the amount of matter an object contains and is not affected by gravity.

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Volume

Volume is the amount of three-dimensional space that an object or substance occupies or contains within.

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Water Displacement

A method for measuring the volume of an irregularly shaped object by submerging it in water.

​

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The Formula for Density

Finding Mass and Volume

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Finding Mass

• The mass of an object is measured with a triple beam balance.

• Mass is the amount of matter present in any given object.

• The standard unit for mass is grams (g) or kilograms (kg).

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Volume of Regular Shapes

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Volume of Irregular Shapes

• Use the water displacement method to find the volume of irregular objects.

• Place the object in a graduated cylinder that is filled with water.

• The volume is the difference in final and initial water levels.

How to Measure Volume

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Will It Float or Sink?

Why It Floats

• An object will float if it is less dense than the liquid it is placed in.

• The density of pure water is a benchmark, which is about 1 gram per cubic centimeter (1 g/cm³).

• For example, ice has a density of 0.93 g/cm³, which is why it floats in water.

Why It Sinks

• An object will sink if it is more dense than the liquid it is placed in.

• This means its density is greater than water's density of 1 gram per cubic centimeter (1 g/cm³).

• For example, aluminum has a density of 2.7 g/cm³, which causes it to sink in water.

Multiple Choice

An object has a density of 1.4 g/mL. What will happen when it is placed in a container of pure water (density 1.0 g/mL)?

• It will hover in the middle of the water.

• It will dissolve in the water.

• It will float on the surface.

• It will sink to the bottom.

Multiple Choice

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

Multiple Choice

An irregularly shaped rock was lowered into a graduated cylinder holding a volume of water equal to 50 ml. The height of the water rose to 75 ml. If the mass of the stone was 250 g, what was its density?

• 15 g/mL
• 5 g/mL
• 10 g/mL
• 20 g/mL

Multiple Choice

An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to 200 ml. The height of the water rose to 280 ml. If the mass of the stone was 240 g, what was its density?

• 3 g/mL
• 4 g/mL
• 2 g/mL
• 5 g/mL

Multiple Choice

How much water has been displaced in the image shown?

• 40 mL
• 65 mL
• 20 mL
• 25 mL

Multiple Choice

How much water has been displaced in the image shown?

• 80 mL
• 100 mL
• 20 mL
• 60 mL

Multiple Choice

A lead cylinder has a mass of 540 grams and a volume of 2.70 mL.  Calculate the density of the lead cylinder. Remember to move the decimal on both sides of the problem.

• 150 g/mL

• 190 g/mL

• 200 g/mL

• 120 g/mL

Multiple Choice

An irregular shaped object was lowered into a graduated cylinder holding a volume of water equal to 50 ml. The height of the water rose to 57 ml. If the mass of the stone was 140 g, what was its density?

• 57 g/mL
• 50 g/mL
• 20 g/mL
• 107 g/mL

Multiple Choice

What is the volume of Spongebob Squarepants based on the displacement of the water in the graduated cylinder. 

• 50mL
• 52mL
• 102mL
• 2mL

Multiple Choice

What is the volume of the jade based on the displacement of the water in the graduated cylinder.

• 50.0mL
• 10.5mL
• 60.5mL
• 110.5mL

Multiple Choice

What is the volume of the yellow object based on the displacement of the water in the graduated cylinder.

• 10mL
• 50mL
• 60mL
• 110mL

Multiple Choice

A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?

• 2.8g/mL
• 2.7g/mL
• 2.66.g/mL
• 2.5g/mL

Metals, Nonmetals, and Metalloids

Middle School

Key Vocabulary

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Luster

The metallic shine of a substance that tells us how it reflects light from its surface.

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Malleability

The ability of a substance to be hammered or shaped into thin sheets without breaking or cracking.

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Ductility

The ability of a substance to be stretched or pulled into a thin wire without breaking.

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Conductivity

The measure of a substance's ability to conduct heat or an electrical current.

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Brittle

A characteristic of a substance that is hard but is likely to break or shatter easily.

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Semiconductors

Substances that conduct electricity and heat better than nonmetals but not as well as metals.

​Some text here about the topic of discussion.

​

• ​Shiny luster

• Malleable

• ​Good conductors

• ​Ductile

• ​High density

Metal Physical Properties

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• Dull

• ​Brittle

• Not malleable

• Insulator

• Not ductile​

​

​Some text here about the topic of discussion.

Nonmetal Physical Properties

​

• ​Typically solids

• Can be shiny or dull

• Can be malleable

• Can be ductile

• Can be brittle

• Good semiconductor​

Metalloid Physical Properties

Multiple Choice

Which of the following is a key characteristic of metalloids?

• Used as semiconductors

• Ductile

• Insulator

• Malleable

Multiple Choice

Which of these is a property of metals?

• It's malleable

• It's an insulator

• It's very brittle

Multiple Choice

Which element category could have the characteristic of brittle? Choose the best answer.

• Metal

• Nonmetal

• Metalloid

• Metalloid and Nonmetal

Multiple Choice

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon?

• Metal

• Nonmetal

• Metalloid

Multiple Choice

All of these properties describe metals except...

• malleable

• conductors

• brittle

• shiny

Multiple Choice

One property of a nonmetals is that it is a good conductor of electricity?

• true
• false

Multiple Choice

All of the following would classify an element as a metal except?

• Dull

• Lustrous

• Malleable

• Conductor

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

• Metal

• Nonmetal

• Metalloid

Multiple Choice

Metals are malleable and ductile.

• TRUE
• FALSE

Multiple Choice

Which elements are found on the right side of The Periodic Table?

• Metals
• Nonmetals
• Metalloids
• Water

Multiple Choice

Which element is a nonmetal?

• Titanium
• Selenium
• Potassium
• Polonium

Multiple Choice

Which element is a metalloid?

• Titanium
• Selenium
• Potassium
• Polonium

Multiple Choice

Anytime you see the word SEMICONDUCTOR - what substance do you have?

• Metal
• Nonmetal
• Metalloid

Multiple Choice

What category of elements is shaded in the periodic table?

• Metals

• Nonmetals

• Metalloids

Multiple Choice

What category of elements is shaded in the periodic table?

• Metalloids

• Metals

• Nonmetals

Multiple Choice

Look at the periodic table that is provided. Where would nonmetals be located? 

• to the left of the table 
• to the right of the table 
• in the zigzag line