Physical Properties: Extensive vs Intensive Physical Properties Check homework for completion and turn in Safety Contracts Review homework Notes: Extensive.

Slides:

Advertisements

Similar presentations

Remember the Triangle M D V.

Advertisements

What Is Density? (contd.)

Density A quantitative physical property. Density At the conclusion of our time together, you should be able to: 1.Define density 2.Calculate the density.

Matter.  Anything that has mass (grams) and occupies space (volume).  Volume: a measure of the size of a body or region in three dimensional space.

DENSITY LAB Mass the amount of material in an object can be determined by using a triple beam balance.

What is density and how is it measured?

BEFORE WE DEFINE DENSITY WE NEED TO KNOW WHAT MASS AND VOLUME IS? Go ahead and write in your composition books what you think mass and volume is? Hints.

Density The make up and structure of all matter!!!

+ Conversions and Calculating Scientific Data. + The Metric System Scientists us the metric system to measure and calculate scientific data The metric.

Hosted by Mrs. Sowa Density Equation Graphs Matter Models Measuring m and V

Density Density describes how heavy an object is compared to its size.

Matter and Measurement Mrs. Alvarez 9/2013.  Definition: Mass per unit volume of a substance  Formula: D = m/V ; units: g/mL, g/cm 3, kg/L.

Density. Definition Density: The amount of matter in a certain volume. (How much matter is in a given amount of space.) Example: Each of the spheres in.

Density. Different substances have different densities. The density of a material does not depend on the size or amount of the substance you have. Density.

Measuring Length.

In the figure to the left the blue dots are the matter (particles/atoms/molecules) which will add to the mass of the object. The amount of space the box.

Start Vocabulary Density Mass vs. Weight Properties 1.

Density The make up and structure of all matter!!!

Volume of a Rectangular Prism

Chapter 5 Density and Buoyancy

DENSITY A PHYSICAL INTENSIVE PROPERTY. DENSITY Density is the mass of a substance that occupies a given volume. The SI standard unit of volume is the.

Depends on these two properties: MASS: amount of matter you are made ofMASS: amount of matter you are made of VOLUME: amount of space something takes.

Matter.  Anything that has mass (grams) and occupies space (volume).  Volume: a measure of the size of a body or region in three dimensional space.

Metric Measurement Review Guide. The unit of measurement for length is_______.  the Meter.

Characteristic Physical Properties. Characteristic physical properties are properties that are unique to a substance and can be used to identify it. For.

DN: Feathers vs Rocks (pg 45) Which has the greatest: A) Volume? B) Mass? C) Density ? Explain each answer 100 pounds of feathers 100 pounds of rock.

Density White Board Review Pick up a board, marker, paper towel & calculator.

Matter Review. What is the definition of density?

Density Essential Question: How do you calculate density when you have the appropriate data?

Density Notes. What is density? How much mass is in a volume How much matter is in a given space How compact particles are in a space Which is more dense?

How can you compare the densities of liquids without calculations?

Density Sink or float?. What is Density? Defined as the amount of matter (mass) within a certain amount of space (volume) Represented by the following.

FINDING DENSITY … an activity using mass and volume.

Which do you think would have the greater volume and mass? Why?

DENSITY Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the.

Measuring Matter 2.2 Weight and Mass

Density is mass per unit volume.

DENSITY – The mass of one cm3 or one mL of a substance

Density- notes page 21 Essential Question: How do we explain density?

Volume of Rectangular and Triangular Prisms

What do you recall about Density?

Density Practice Problems

Density Think back to our definition of matter (anything that has mass and takes up space). What is another word for how much space something takes up?

Mass, Volume, & Density.

Volume of Rectangular and Triangular Prisms

Density Think back to our definition of matter (anything that has mass and takes up space). What is another word for how much space something takes up?

Determining if an object will float or sink

What is Density? The ratio between the mass of an object and the volume of the same object In other words, it tells you how much matter an object has within.

Which do you think would have the greater volume and mass? Why?

Matter and Measurement Vocabulary

Which do you think would have the greater volume and mass? Why?

Characteristic physical properties

To calculate Density you divide Mass by volume.

Mass, Volume, & Density.

Which do you think would have the greater volume and mass? Why?

Which do you think would have the greater volume and mass? Why?

Volume of Rectangular and Triangular Prisms

Which do you think would have the greater volume and mass? Why?

Which do you think would have the greater volume and mass? Why?

Which do you think would have the greater volume and mass? Why?

Which do you think would have the greater volume and mass? Why?

Volume of Rectangular and Triangular Prisms

Which do you think would have the greater volume and mass? Why?

Bellringer Which of the following items will float? Which will sink? Why?

DENSITY Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the.

Which do you think would have the greater volume and mass? Why?

Presentation transcript:

Physical Properties: Extensive vs Intensive Physical Properties Check homework for completion and turn in Safety Contracts Review homework Notes: Extensive vs Intensive Physical Properties Lab: Density – Does Size Matter? Homework: – Complete lab packet “Density: Does Size Matter?”

1. State the formula for density in words and mathematical symbols. Density is the amount of mass in a certain amount of space. Density = Mass / Volume

2. A rock has a mass of 210 grams and occupies a volume of 70 cm 3. What is its density? Density = mass / volume Density = 210 g / 70 cm 3 Density = 3 g/cm 3

3. An unknown solid occupies a volume of 5 cm3and has a mass of 40 grams. Find its density. Density = mass / volume Density = 40 g / 5 cm 3 Density = 8 g/cm 3

4. Define the following vocabulary words: Mass and Volume Mass: an object’s resistance to change in motion. Volume: the amount of space an object takes up.

5. A rectangular solid of unknown density is 5 meters long, 2 meters high and 4 meters wide. The mass of this solid is 300 grams. Given this information for this homogeneous (alike throughout) material, calculate its density. Volume = length x width x height = 5 m x 2m x 4m = 40 m 3 Density = mass / volume = 300 g / 40m = 7.5 g/m 3

6. A rock occupies a volume of 20 cm 3 and has a mass of 54 grams. Find the density of this rock. Density = mass / volume Density = 54 g / 20 cm 3 Density = 2.7 g /cm 3

7. A cube made of an unknown material has a height of 9 cm. The mass of this cube is 3,645 grams. Calculate the density of this cube given this information. Hint: a cube has 6 equal sides Volume = length x width x height = 9 cm x 9cm x 9cm = 729 cm 3 Density = mass / volume = 3,645 g/ 729 cm 3 = 5 g / cm 3

Review: Physical Properties of Matter Physical Property: A measurable attribute of matter. Composition of matter does not change. – Examples?

Notes: Extensive Physical Properties – Properties that change if the quantity of the substance changes. Example:

Intensive Physical Properties: Properties that do not change if the quantity of the substance changes. Example:

Lab: Will the density of a substance change if we change its size? (Is it an EXTENSIVE OR INTENSIVE property?)

If all of these objects are made of pure gold what is the density of each object?

All of these objects are made of lead. What is the density of each?

All of these objects are made of copper. What is the density of each?

Mass: Extensive or Intensive? Explain.

Volume: Extensive or Intensive? Explain.

Density: Intensive or Extensive? Explain?

Homework: Complete the lab packet. Safety Contract- – For late credit

Review: What is the density of each substance shown. Every cube has a volume of 1 cm 3. Which substance is the most dense? What does that mean? Would the density change if we changed the size….let’s find out.

ACTUAL DENSITIES