PHYS171_f11_lecture_43

PHYS171_f11_lecture_43 - PHYS171 Prof. Arthur La Porta...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYS171 Prof. Arthur La Porta alaporta@umd.edu Rm 1111, IPST building (building #085) Is water a fluid? Y e s No May b 88% 8% 4% 1. Yes 2. No 3. Maybe
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Is air a fluid? Y e s No May b 100% 0% 0% 1. Yes 2. No 3. Maybe Is sand a fluid? 24% 16% 60% 1. Yes 2. No 3. Maybe
Background image of page 2
Is peanut butter a fluid Y e s No May b 52% 24% 24% 1. Yes 2. No 3. Maybe Chapter 14 Fluid Mechanics-Statics What is a fluid? • A fluid is a state of matter where atoms collide with each other but can move past each other (as opposed to a solid) • A liquid is a dense fluid in which atoms interact with each other almost continuously • A gas is a sparse fluid in which atoms collide with each other infrequently. • In a liquid the shape of the material changes in reaction to force, but the volume does not vary much. • In a gas, the shape and volume of the material is variable.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 14 Fluid Mechanics-Statics What is a fluid? • A liquid cannot sustain shearing stress – it will give way if you push on it • It might prevent you from moving fast but it will eventually yield to force. • Imagine trying to walk in a swimming pool.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

PHYS171_f11_lecture_43 - PHYS171 Prof. Arthur La Porta...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online