Show:
Finding Density
Vocabulary
Mass vs. Weight
Mass, Volume, & Density Relationships
Measurement Tools
100
What is the Mathematical Formula for figuring Density?
Density = Mass/Volume (Density equals Mass divided by Volume)
100
What is the definition for "Matter?"
Matter is anything that takes up space and has a mass. Matter could be a solid, liquid, or gas.
100
What is Mass?
Mass is a measurement of the amount of matter in an object. Mass is measured in Grams or Kilograms.
100
What happens to the Density of an object if the Mass of the object increases, and the Volume stays the same? (Ex: D= 1 g/4 mL ---> 3 g/4 mL) Written by Gwen
If the Mass of an object increases and the Volume stays the same, then the Density will also increase. (Ex: D= 0.25 g/mL ----> 0.75g/mL)
100
What tool do scientists use to measure the mass of an object? Written by Savanah
Scientists use a Triple Beam Balance to measure the mass of an object.
200
If the Mass of an Object is 60 grams, and the Volume of the object is 40 cubic centimeters, what is the Density of the object? Written by Jaime
Density = Mass/Volume Density = 60 grams/40 cubic centimeters Density = 1.5 grams/cubic centimeter
200
What does the word "Volume" mean?
Volume is the amount of space an object occupies in three dimensions (3-D).
200
What is weight?
Weight is a measurement of the pull of gravity on an object. Weight is measured in Newtons.
200
What happens to the Density of an object if the Mass stays the same but the Volume of the object decreases? (Ex: 2 g/8 mL ----> 2 g/4 mL)
The Density of the object will increase if the Mass stays the same and the Volume of the object decreases. Ex: 2 g/8 mL = 0.25 g/mL 2 g/4 mL = 0.50 g/mL
200
How do you find the volume of a rectangular prism? Written by Ali
You have to measure the length, width, and height of the object. Then multiply the length times the width, and multiply your answer by the height. V = L x W x H
300
What is the Density of an object that has a Mass of 12 grams and a Volume of 48 cubic centimeters?
Density = Mass/Volume Density = 12 grams/48 cubic centimeters Density = 0.25 grams/cubic centimeter
300
What does the word "Density" mean?
Density is the amount of matter in an object for its size. Density is a Unit Rate comparing Mass to Volume (grams for every 1 cubic centimeter) .
300
Mr. Richardson has a Mass of 135 kilograms on Earth. What is Mr. Richardson's Mass on the Moon? (The Moon's Gravity is 1/6th the Gravity on Earth)
Mr. Richardson's Mass is still 135 kilograms. Mass does not change because of gravity.
300
What will happen to an object that has a smaller Mass than Volume when it is placed in water?
The object will float in the water because it is less dense than the water. Water's Density is 1.0 g/mL. If the Mass is smaller than the Volume, the Numerator is smaller than the Denominator and the answer is going to be less than 1.0.
300
What is the Mass of an object that is balanced on the triple beam balance when the first beam is on 40 g, the second beam is on 200 g, and the third beam is on 3.9 g.
The Mass of the Object is 243.9 grams. 200 g + 40 g + 3.9 g 240 g + 3.9 g 243.9 g
400
Gold has a Density of 19.3 grams/cubic centimeter. What is the mass of a gold nugget that has a volume of 6 cubic centimeters?
Gold: 19.3 grams/ cubic centimeters 19.3 g/1 cubic centimeter = ? grams/6 cubic centimeters (1) x (x) = (19.3) x (6) x = 115.8 grams
400
How many milliliters (mL) does it take to equal one Cubic Centimeter (cm3)?
1 mL = 1 cm3 1 milliliter takes up exactly the same amount of space as 1 cubic centimeter.
400
Which place would Mr. Richardson have a larger Weight, on the Moon or on the Sun. The Moon has 1/6th the mass of the Earth. The Sun has 330,000 times the mass of the Earth.
Mr. Richardson would have a larger Weight on the Sun because the Sun has more Mass than the Earth. Objects with more mass have a stronger gravitational pull. A stronger gravitational pull increases an object's weight.
400
What will happen to an object that has a larger Mass than Volume when it is placed in water?
The object will sink because it is more dense than water. Water's Density is 1.0 g/mL. If the Mass is larger than the Volume, the Numerator is greater than the Denominator and the answer is going to be greater than 1.0.
400
What is the Volume of a rectangular prism that has a length of 4 cm, a width of 2.5 cm, and a height of 7 cm? L = 4 cm W = 2.5 cm H = 7 cm
The Volume of the object is 70 cubic centimeters. V = L x W x H V = 4cm x 2.5cm x 7cm V = 10 cm2 x 7 cm V = 70 cm3
500
The density of olive oil is 0.5 grams/milliliter. What is the volume of a bottle of olive oil that has a mass of 31.7 grams?
0.5 grams/milliliter = 31.7 grams/? milliliters 0.5x = 31.7 x = 31.7/0.5 = 63.4 milliliters
500
What is the difference between a label of grams/milliliter and grams/cubic centimeter?
The label of grams/milliliter tells us that the object is a liquid, since the volume was measured in milliliters. The label of grams/cubic centimeter tells us that the object is a solid, since the volume was measured in cubic centimeters.
500
What will happen to your Weight as you travel from Summit County to the ocean?
As you travel from Summit County to the ocean, your weight will increase. As you get closer to the ocean, you get closer to the center of the Earth where gravity's pull is stronger.
500
How can steel (7.75 g/cubic centimeter) be used to make a boat that floats?
The steel is formed into a shape that takes up a large amount of space. The boat is not solid steel. Most of the boat is filled with air. Because most of the space in the boat is air, it increases the Volume of the boat without increasing the Mass of the Boat. If the Volume of an object increases and the Mass stays the same, then the Density decreases.
500
A graduated cylinder has 47 mL of water in it. Mr. Richardson adds an odd shaped rock and the water level rises to 62 mL. What is the volume of the rock?
The volume of the rock is 15 cubic centimeters. 62 mL - 45 mL = 15 mL but since the rock is a solid, it is measured in cubic centimeters.