Homework and Review Questions

Slides:

Advertisements

Similar presentations

Introduction to Density  Density is the measurement of the mass of an object per unit volume of that object. d = m / V  Density is usually measured in.

Advertisements

GET CLICKER WOD QUIZ. How can matter be identified based on physical properties? What are physical properties? Physical properties are any characteristics.

Which has more mass? A) 1 kilogram of feathers B) 1 kilogram of bricks

Measuring Volume & Density By: Brianna Shields September 14, 2005.

Practice Density, Mass and Volume Questions

IPC Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are.

Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are.

Title: Density Equations Date:

Mrs. O’Rourke September, 2006

Density, Mass, & Volume Concepts & Equations Mr. Abud.

If objects are the same size they will have the same density. Different materials have different densities. Density is made up of two other measurements.

Density by. Density is _______per unit _______ of a material D = m ÷___ m = ___x___ v = m ÷ ____ D = _____ g/mL or g/cm 3 m = ____in grams L = length.

Density. Which do you think would have the greater mass? Greater volume? Why?  1 kg of feathers  1 kg of rock  Same mass!  Larger volume  Same mass!

What is density and how is it measured?

Separating Mixtures The components of a mixture can be separated based on the physical properties of: Magnetism.

Standard 2 Objective 1.

Density Measuring the Density of Matter. What is Density Different substances may have the same mass, but they don’t necessarily fill the same volume.

Density All substances have different densities, therefore, you can identify a substance if you know its density The formula to calculate something’s density.

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

Derived Units Volume = length  width  height Density = mass per unit volume (g/cm 3 or g/ml) D = MVMV D M V.

Density Formula: Density = Mass ÷ Volume Standard Unit =

Measurement-A Common Language Density The measure of how much mass is contained in a given volume.

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.

“The Density Equation” Mass (g) Volume (mL or cm 3 ) Density (g/mL or g/cm 3 )

7.2 Fluids and Density 1)A fluid is any form of matter that can flow. a)Liquids and gases are fluids since they do not have a fixed shape. b)Solids are.

1. Which is more dense, water or wood? How do you know? 2. Which is more dense, 1 pound of lead or 100 pounds of lead? Wood, if it sinks in water. SAME!

WHAT IS DENSITY One of the most important physical properties of a substance is its density, or what is mass per unit volume. The property of density may.

1 2.8 Density Density Calculations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

DENSITYDENSITY. Review DENSITY_COMPUTATION slide found on the SCIENCE weebly site. Graded Worksheet tom.

CHEMISTRY 4.5 – Calculating Density. In this photo of an oil spill, the oil is floating on the water. It floats because oil is lighter than water. When.

What makes an ice cubes float in water ? Write your response in two sentences.

Introduction to Matter Lecture: Calculating Density.

Density Problems Honors

Density Density is the measure of how much mass is contained in a given volume * density is made up of two measurements mass and volume, so the density.

Density How close together the molecules of an object are. How Dense the molecules are. “Dense forest” = thick, hard to see through.

Density Section 2.1 Measurement of how packed or crowed object is Ratio of mass to volume.

How can you compare the densities of liquids without calculations?

Density. Take a look at the two boxes below. Each box has the same volume. If each ball has the same mass, which box would weigh more? Why?

(c) McGraw Hill Ryerson Fluids and Density A fluid is any form of matter that can flow.  Liquids and gases are fluids since they do not have.

Density and Temperature

Density SNC1D0.

Density What is density?

Measuring Matter 2.2 Weight and Mass

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

Activity #21 DENSITY.

Density- Cornell notes page 21

Measuring Matter Chapter 2 Section 2.

Will it Float or Sink? Density.

A physical property of matter

Density Review.

Mass Mass: the measurement of How Much matter is in an object Units = grams (kg  mg)

Determining if an object will float or sink

Density -density is the amount of stuff in a given volume; it is symbolized as ρ -it is mass per volume; note that units can be virtually any mass or volume.

A fluid is any form of matter that can flow.

(Characteristic property)

What weighs more a ton of bricks or a ton of feathers?

A fluid is any form of matter that can flow.

Density Practice Problems

Presentation transcript:

Homework and Review Questions All that glitters Homework and Review Questions

Question #1 Density is found by dividing the mass by the volume of an object Find the density if the object’s mass is 45 g and its volume is 157 cm3

Question #2 Find the mass, if the object’s volume is 45 cm3 and its density is 157 g/cm3

Question #3 Find the volume if the object’s mass is 75 g and its density is 3.2 g/cm3

Question #4 A piece of tin has a mass of 16.52 g and a volume of 2.26 cm3. What is the density of tin?

Question #5 A man has 50.0 cm3 bottle completely filled with 163 g of a slimy green liquid. What is the density of the liquid?

Question #6 A piece of metal has a density of 11.3 g/cm3 and a volume of 6.7 cm3. What is the mass of this piece of metal?

Question #7 A block of wood has a volume of 6 ml and a mass of 30 g. What is the density of the block of wood in g/cm3?

Question #8 A block of substance has a length of 10 cm, a width of 5 cm, and a 4 cm height. It has a mass of 150 g. Will this substance float in water? Why?

Question #9 The density of the material is 10.9 g/cm3. what is the volume of the object if its mass is 347.9 g.

Question #10 A student found a piece of silver colored metal while walking through campus. She did an experiment to try to determine whether or not the metal was silver. She determined that the mass of the sample was 14.7 grams and the volume of the sample was 1.4 mL. Is the metal silver? Explain your thinking. The density of silver is 10.5 g/mL.

Question #11 A student found a piece of silver colored metal while walking through campus. She did an experiment to try to determine whether or not the metal was silver. She determined that the mass of the sample was 3.78 grams and the volume of the sample was 1.4 mL. The density of silver is 10.5 g/mL. Is the metal silver? Explain your thinking.

Question #12 What is the density of a liquid sample if the volume is 25 mL and the mass is 20 grams? 0.8 g/mL (B) 1.3 g/mL (C) 45 g/mL (D) 500 g/mL

Question #10 The density of brass is 8.4 g/mL. If you have a sample of brass with a mass of 306 grams, what volume of brass do you have? 0.027 mL (B) 36.4 mL (C) 314.4 mL (D) 2570 mL

Question #13 A metal sample has a mass of 38.9 grams. If it is pure solid iron, what should the volume be? (The density of solid iron is 7.78 g/mL.) 5.0 mL (B) 0.20 mL (C) 31.1 mL (D) There is no relationship between mass and volume.

Question #14 Calculate the mass of 65 mL of mercury. The density of mercury is 13.6 g/mL.

Question #15 The density of the material is 10.9 g/cm3. what is the volume of the object if its mass is 347.9 g.

Question #16 Does a bigger piece of a gold have a different density than a smaller piece?

Question #17 Find the density of a pile of salt that is shaped as a cone. The radius of the circle is 15.15 cm and the height of the cone is 34.23 cm. The mass of the salt is 756.34 g. Find the formula that will allow you to calculate the volume of the cone of salt Calculate the volume of salt Calculate the density of the salt Will the salt float or sink in pure water? Explain your answer

Question #18 In terms of density, why do some things float and some sink?

Question #19 A oil tanker is made out of steel, which is much denser than water. Yet even when the tanker is loaded with oil, it floats. In terms of density, mass and volume, explain why.

Question #20 List the materials/equipment you would need to find the density of the following. In addition, list the difficulties you would encounter and explain how you could overcome them. A) a marshmallow B) a credit card C) your cell phone D) a Chicken Nugget from the school lunch