Download presentation

Presentation is loading. Please wait.

Published byEllen O’Connor’ Modified over 6 years ago

2
Density is a measure of how much matter (objects that take up space) is compacted in an area. What is the formula? Density = mass OR mass ÷ volume. volume Units for density: g cm 3

3
How close the atoms or molecules are to each other More than “heaviness” - density includes how much space an object takes up!! All substances have density including liquids, solids, and gases

6
Density of pure water = 1.0 g/cm 3 If an object has a density greater the 1.0 g/cm 3 it will sink in water. If an object has a density less than 1.0 g/cm 3 it will float in water.

7
If you break a piece off of an object...Will it have a different density than the whole piece? NOOOOOOO!!! Density is based on total mass divided by total volume. When one changes, the other also changes, so the density stays the same!!!

8
If I increase volume what happens to density? If I decrease volume what happens to density? If I increase mass what happens to density? If I decrease mass what happens to density?

9
A piece of wood has a mass of 18 grams and a volume of 30 cm3. What is the density of the wood? Will it float?

10
A small rock has a density of 1.4 g/cm3 and a mass of 70 grams. What is its volume? Will it Float? What part of the equation tells if it will or won’t?

11
EquationMassVolumeDensitySink/Float 12 g0.5 cm 3 16 g0.2 g/cm 3 5 cm 3 20 g/cm 3 0.9 g0.3 g/cm 3 6 g4 cm 3 8 g1.8 cm 3 13 cm 3 9 g/cm 3 14.7 g15 cm 3 2 cm 3 1.1 g/cm 3 17g3 g/cm 3

12
Osmium is a very dense metal. What is its density in g/cm 3 if 50.00 g of the metal occupies a volume of 2.22cm 3 ? 1) 2.25 g/cm 3 2)22.5 g/cm 3 3)111 g/cm 3

13
2) Placing the mass and volume of the osmium metal into the density setup, we obtain D = mass = 50.00 g = volume2.22 cm 3 = 22.522522 g/cm 3 = 22.5 g/cm 3

14
A solid displaces a matching volume of water when the solid is placed in water.

15
What is the density (g/cm 3 ) of 48 g of a metal if the metal raises the level of water in a graduated cylinder from 25 mL to 33 mL? 1) 0.2 g/ cm 3 2) 6 g/m 3 3) 252 g/cm 3

Similar presentations

© 2022 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