Download presentation

Presentation is loading. Please wait.

Published bySamuel Carroll Modified over 5 years ago

2
DENSITY AND SPECIFIC GRAVITY A property of matter representing the mass per unit volume g/ml –liquid -grams/milliliters g/cm3 -solid -grams/centimeters cubed 1ml = 1cm 3 Must be in grams, centimeters, and milliliters *no other units allowed

3
To Find the Mass (numerator) Grams -mass -solid -place item on balance scales -liquid 1. find the mass of an empty cylinder 2. find the mass of the cylinder with the liquid in it 3. subtract the two readings = the mass of the liquid

4
To Find Volume (denominator) Volume -ml or cm 3 Use a cylinder for liquid and read the meniscus (lowest level of liquid in the cylinder)

5
Volume of an Irregular Solid Use water displacement for a solid 1. put water in a cylinder and read 2. drop a solid in the water and read again 3. subtract the two readings

6
continued Water weighs 1 gram per milliliter Water’s mass is 1 gram per milliliter Water’s density is 1 gram per milliliter Anything more dense than 1 gram per milliliter will sink in water Anything less dense than 1gram per milliliter will float on water

7
Volume of a Regular Solid Volume for a regular solid using a meter stick, measure the height, width, and length H x W x L = the volume 1 side x 1 side x 1 side = the volume of a cube if all the sides are the same = the side cubed (g/cm 3 )

8
Review Volume of a rectangle L x W x H Volume of a cylinder (radius = diameter/2) pi x R 2 x H Volume of a sphere 4/3 x pi x R 2 (radius = circumference/pi/2) Check in passbook for equations

9
Label for Density So, Density = g/cm 3 or g/ml

10
Problems to Solve Density = ? cm3 = 5 g = 15 (per means to divide) g/cm 3 Grams = ? density = 6 g/ml ml = 2

11
Volume = 50cm 3 Mass = 100grams What is the density of this object Volume = 32 liters Mass = 40 centigrams (must change centigrams to grams before completing the problem)

12
Volume reading in cylinder water only 4ml water with rock8ml mass = 12 g Will it float or sink in water? What is the density?

Similar presentations

© 2021 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google