MatterUnitExam

Matter is anything that has:

• mass

• volume

• mass and volume

• substance

Mass is a measurement of:

• the amount of particles a substance has.

• the space an object occupies

Volume is a measurement of:

• the amount of particles a substance has.

• the space an object occupies

How would you find the mass of an object?

• Measure its dimensions with a ruler, and then multiply length x width x height

• Water displacement

• use a balance/scale

• use a timer

How would you find the volume of an irregular shaped object?

• use a ruler to measure its dimensions

• water displacement

• use a balance/scale

• use a timer

How could you determine if a golden penny is made of gold?

• You wouldn't be able to figure it out.

• If it looks like gold, it's gold.

• You would test the properties of the gold penny and compare those to the properties of gold.

• You would guess.

What is the density of a liquid if its volume is 125 mL and its mass is 50 g?

• 2.5 g/mL

• 175 g/mL

• 0.4 g/mL

• 6250 g/mL

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Why does ice float?

• Liquid water is less dense than solid water.
• Solid water is less dense than liquid water.
• Gaseous water is less dense than solid water.
• Liquid water is less dense than gaseous water.

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³