1 / 10

Determining Density: Regular and Irregular Objects Using Measurement Techniques

This guide outlines three methods to calculate the density of both regular and irregular objects. For regular objects, measure each side, calculate volume, determine mass, and apply the density formula D = m/V. For irregular objects, measure water displacement in a graduated cylinder to find volume, then record mass and compute density. Examples include calculating the density of a bamboo block and a lead sample using specific measurements, as well as determining the density of mercury in a graduated cylinder.

odell
Télécharger la présentation

Determining Density: Regular and Irregular Objects Using Measurement Techniques

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notebook p 29Three Ways To Determine Density

  2. Regular Objects • Measure the each side of the block in centimeters. Calculate volume in cm³: multiply the length x width x height. • Place the block on a balance and determine the mass in grams. • Calculate density D= m V

  3. Calculate the Density • A block of bamboo measures 7.25cm x 3.91cm x 2.55cm. The mass of the block is 28.91 g. What is the density of the block? • D = m/V

  4. Calculate the Density • A block of bamboo measures 7.25cm x 3.91cm x 2.55cm. The mass of the block is 28.91 g. What is the density of the block? • D = m/VD = 28.91 g / 7.25cm x 3.91cm x 2.55cmD = 0.40 g/ cm³

  5. Irregular Objects • Measure water in graduated cylinder. Add object and measure again. Calculate volume: 2nd# - 1st#. • Place object on balance and determine mass in grams. • Calculate density D= m V

  6. Calculate the Density • A sample of lead is found to have a mass of 32.6g. A graduated cylinder contains 2.8ml of water. After the lead sample is added to the cylinder, the water level reads 5.7ml. Calculate the density of the lead sample. • D = m/V

  7. Calculate the Density • A sample of lead is found to have a mass of 32.6g. A graduated cylinder contains 2.8ml of water. After the lead sample is added to the cylinder, the water level reads 5.7ml. Calculate the density of the lead sample. • D = m/V • D = 32.6 g / (5.7ml – 2.8ml) • D = 32.6 g / 2.9ml • D = 11.24 g/ml

  8. Density of a Liquid • Place empty graduated cylinder on balance and determine the mass in grams. • Add liquid and read the amount to find volume. • Place full graduated cylinder on the balance. Calculate mass: Full cylinder – empty cylinder. • Calculate density D= m V

  9. Calculate the Density • A graduated cylinder has a mass of 83.20g. After 350ml of liquid mercury is added the cylinder has a mass of 4,843.20g. What is the density of the mercury?

  10. Calculate the Density • A graduated cylinder has a mass of 83.20g. After 350ml of liquid mercury is added the cylinder has a mass of 4,843.20g. What is the density of the mercury? • D = m/V • D = (4,843g – 83.20g) / 350ml • D = 4760g /350ml • D = 13.60 g/ml

More Related