Physical Science Chapter 1 Density, Mass, and Volume 8th Grade
The density of water is
1 gram/milliliter
The mass of the rock sample in the graduated cylinder is 196 grams. Calculate the density of the rock sample using 50 as the original value
146 g/ml3
A sample of rubbing alcohol has a density of approximately 0.80 g/mL and a volume of 20 mL. What is its mass?
16 grams
A student measures the mass of 6 cm3 sugar cube. The mass is 13.5 grams. What is the density of the sugar cube?
2.25 g/cm3
A rock with a mass of 70 grams is dropped into a graduated cylinder with 30 mL of water in it. The water level rose to 36mL. Calculate the density of the rock in g/mL only up to the second decimal.
2.36 g/mL
Water is displaced when a rock is placed into a graduated cylinder. The level of the water rises from 50 mL to 78 mL. What is the volume of the rock?
28 cm3
The box has a mass of 350 grams and the dimensions of the box are 5 cm tall 4 cm wide and 5 cm long. What is the density of the box?
3.5 g/cm3
Calculate the mass of a liquid with a density of 3.5 g/mL and a volume of 12 mL.
42 grams
A block of aluminum occupies a volume of 20 mL and has a density of 2.7 g/mL. What is the mass of the aluminum block?
54 grams
What is the correct calculation for determining the density of a tennis ball with a mass of 54 grams and a volume of 9 mL?
6 g/ml3
A woodworker begins carving on the following block of wood that weighs 2700 grams. The measurements are 5cm, 3cm, and 20cm. What is the density of the wood?
9 g/cm3
Weight
A measure of the force of gravity on an object
Matter
Anything that has mass and takes up space
What term describes the amount of mass per unit of volume?
Density
The density of a diamond is 3.51 g/cm3. Which gem might be a diamond based on density? Gem 1, 1.0g, 1.0cm3. Gem 2 7.96g, 2.27cm3. Gem 3 2.58g, 8.0cm3.
Gem 2
A student is attempting to identify a clear block. The mass of the block is 25.6 grams. The block displaces 8 mL of water when dropped in a graduated cylinder. What is the identity of the substance? Quartz 2.70 g/ml Plastic 1.20 g/ml Glass 3.20 g/ml
Glass
Use the data table below to answer the following question. Which substance has a mass of 96.5 grams and volume of 5 cm3? Aluminum 2.70 g/cm3 Copper 8.96 g/cm3 Gold 19.3 g/cm3
Gold
An object with a density ____________ 1.0 g/mL will sink in water.
Greater than
How can you prove that air is matter
If you fill a balloon with air it will weight more than an empty one and will not be able to fit the the same small spaces as an empty one
What term describes the amount of matter in an object?
Mass
What two characteristics are required in order to calculate the density of a substance?
Mass and Volume
Properties of matter are measured in
Metric System
If your missing mass
Multiply
How would you determine the mass of a substance if you were given its density and volume?
Multiply density and volume
Is a substance's density considered to be a physical property or a chemical property? Physical Property: A characteristic that can be observed or measured without changing the composition of a substance Chemical Property: A characteristic that can only be determined by changing the identity of a substance
Physical Property
A student measures the properties of 3 materials. One is cork, which floats in water (density of water = 1.00 g/cm3). Sample 1, 90g, 74cm3. Sample 2, 25g, 16cm3. Sample 3, 23g, 100cm3.
Sample 3
Given the data below for 3 substances, which substance the greatest density? 1. 12g, 3mL 2 28g, 14mL 3 64g, 22mL
Substance 1
TRUE OR FALSE Two different substances can have the same volume but different mass
TRUE
Volume
The amount of space an object takes up
Density
The measurement of how much mass of a substance is contained in a given volume
What weights more a pound of sand or a pound of feathers
They are the same
TRUE OR FALSE The density of an object can be calculated and used to identify an object.
True
Explain how to determine the volume of an irregular-shaped object. (i.e. rock or marble)
Using water displacement
A student works on a density column with the liquids shown below. What order from top to bottom would the liquids layer? Water 1.0 g/cm3 Honey 1.42 g/cm3 Vegetable Oil 0.93 g/cm3
Vegetable oil, water, honey
What term describes the amount of space taken up by an object or liquid?
Volume
Mass formula
density x volume
Water displacement formula
final volume - initial volume (V2 - V1)
Volume formula
length x width x height
An object with a density ____________ 1.0 g/mL will float in water.
less than
What is not matter
light; sound
What formula is required in order to calculate the density of a substance?
mass divided by volume
Volume formula using mass and density
mass/density
Density formula
mass/volume
Mass
the amount of matter in an object
Determine the density of a sample of an unknown substance with a mass of 7 grams and a volume of 28 cm3?
.25 g/cm3
The density of a penny is 7.2 g/mL. The average mass of a penny is 2.5 grams. What is the volume of a penny? Round the answer to the nearest hundredth.
.35 mL
A sample of ice cream has a mass of 500 grams and a volume of 625 cm3. Calculate the density of the ice cream.
.8 g/cm3
A culinary student fills a 40 mL container with 37.2 grams of vegetable oil. What is the density of the oil?
.93 g/mL