Unit 1 Review

The mass of an object is 30 g.  The volume is 5 mL.  What is the density of this object?

• 6 g/cm
• 6 g/mL
• 6

If you have a gold brick that is 2 cm by 3 cm by 4 cm and has a density of 19.3 g/cm³, what is its mass?

• 463.2 g/cm³
• 463.2 g
• 0.804 kg
• 0.804 g

The amount of space something takes up

• density
• volume
• mass
• matter

If an object has a density of 21.45 g/cm³, what will be the density of the object if you cut it in half? _{(All calculations should have the correct sig figs)}

• 21.45 g/cm³
• 10.725 g/cm³
• 2 g/cm³
• 42.9 g/cm³

Which box has a higher density?  

• Box A
• Box B
• cannot be determined
• they are the same

Which of the following materials has a low density?

• Steel Marbles

• Granite

• A dry sponge

• A paperclip

In a solid, the particles

• vibrate in place
• slide past one another
• overcome the strong attraction
• move freely in any direction

The phase change from water vapor to liquid water is known as...

• evaporation
• precipitation
• condensation
• sublimation

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Of these three states of matter, which one is least dense? 

• Solid 

• Liquid 

• Gas