Download presentation

Published bySarah Bowman Modified over 4 years ago

1
**Density is… the amount of matter in a given area.**

Ex. population density (Alaska has 1 person/mi2, New Jersey has 1174 person/mi2)

2
Density For science… density is equal to the mass of a thing divided by its volume. D = m/v Mass – amount of matter – measured in grams (g) Volume – amount of space something occupies – measured in cm3 or mL Mass = D(v) v = m/d

3
**Volume For regularly shaped objects- l x w x h ~ (cm)x (cm)x (cm)=cm3**

For irregularly shaped objects- use displacement (amount of water pushed aside equals the volume of the object)

4
**Archimedes Principle Archimedes- Greek philosopher**

Was in his bath tub one morning – he noticed that as his body went in to the water – the water rose out of the way. He realized that the volume of H2O that rose was equal to the volume of his body. So… the volume of an object is equal to the volume of H2O it displaces! 1g H2O = 1mL H2O = 1 cm3 H2O

5
**Buoyancy -upward force that keeps things afloat.**

So why do things float? Buoyancy -upward force that keeps things afloat. -in water: an object floats if its buoyancy is greater than its weight; sinks if its weight is greater than its buoyancy -the buoyant force on the solid object is equal to the weight of the water displaced

6
**What’s that glass bubble thing on your desk?**

It’s a Galileo thermometer? Glass bubbles of colored water with metal tags attached Each tag has a slightly different mass

7
Practice time If an object has a density <1g/cm3, what will it do if placed in water? If an object has a density >1g/cm3, what will it do if placed in water? If an object has a density =1g/cm3, what will it do if placed in water?

Similar presentations

Presentation is loading. Please wait....

OK

Buoyancy Properties of Matter.

Buoyancy Properties of Matter.

© 2018 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

Ppt on e-commerce security Ppt on charge-coupled device images Ppt on pi in maths what is the product Ppt on first conditional exercises Ppt on australian continent nations Free ppt on conductors and insulators Ppt on phonetic transcription exercises Best ppt on body language Download ppt on mind controlled robotic arms manufacturers Ppt on linear programming in operations research