Exploring forces that have increasing effect with decreasing scale

Slides:

Advertisements

Similar presentations

Advertisements

Changes in Matter Chapter 3 sections 1 and 3. Solid Definite Shape and Definite Volume.

Water Potential. Water Potential: the measure of the relative tendency of water to move from one area to another, Ψ. – Affected by Osmosis Gravity Surface.

J. Pulickeel SPH3U1 October Explain what’s Happening using Newton’s First Law….

Gravitational Force Gravitational force is the force of attraction between ALL masses in the universe; especially the attraction of the earth's mass for.

Chapter 13 Set 2. Solute-Solvent Interaction Polar liquids tend to dissolve in polar solvents. Miscible liquids: mix in any proportions. Immiscible liquids:

Biology 107 Water September 2, Water Student Objectives:As a result of this lecture and the assigned reading, you should understand the following:

Biology 107 Water September 1, Water Student Objectives:As a result of this lecture and the assigned reading, you should understand the following:

Lecture 7 Flow of ideal liquid Viscosity Diffusion Surface Tension.

11.3 Properties of Liquids By: Mira Amin, Katie Blackburn, Neil Marfatia.

A 6. 0-kg object undergoes an acceleration of 2. 0 m/s2

SURFACE TENSION. SURFACE TENSION What’s going on at the surface of a liquid?

Introduction to Nanotechnology Module 5 Forces and Interactions.

Properties of Liquids Chapter 11. Viscosity Resistance of a liquid to flow Greater a liquid’s viscosity, the more slowly it flows Viscosity increases.

Soil Physics 2010 Outline Reminder Where were we? Capillarity.

2.2 Properties of Water KEY CONCEPT Water’s unique properties allow life to exist on Earth.

Chapter *. Kinetic Molecular Theory Particles of matter are in constant motion.

Physics 1B03summer-Lecture 12 1 Fluid Mechanics Pressure Buoyancy.

Water and Aqueous Systems Chemistry Mrs. Coyle. The Water Molecule Bent Two lone electron pairs Polar molecule.

Chapter 14 – Liquids and Solids 14.1 Water and Its Phase Changes Pgs

Mrs. Wharton’s Science Class. Newton’s 1 st Law of Motion States that an object at rest will stay at rest, and an object in motion will stay in motion.

Foundation year Chapter 7 General Physics PHYS 101 Instructor : Sujood Alazzam 2015/

L IQUIDS Molecules at an intermediate state between the ordered state of the solid and the disordered state of the gas.

States of Matter Part 3. Liquids Kinetic-molecular theory can be applied to liquids Predicts that molecules of a liquid are in constant motion –Forces.

Intermolecular Forces and Liquids and Solids Chapter 11.

 SWBAT summarize what causes surface tension in water.  SWBAT define solution, solute, solvent and polar molecule.  SWBAT summarize the steps of dissolving.

Elastic Collisions in One Dimension

Bonds Ionic Covalent Hydrogen. Bonds Ionic Transfer electrons Form between ions (+/-) Covalent Share electrons Weaker than ionic 2 types – Polar – Nonpolar.

Shape of a rain drop.

Cohesion Water molecules are attracted to other water molecules. The oxygen end of water has a negative charge and the hydrogen end has a positive charge.

A. The Molecule 1. O—H bond is highly polar 2. Bond angle 105° making it Bent shaped 3. Water Molecule as a whole is polar 4. Attracted to each other.

The Nature of Liquids. Properties of Liquids Definite volume Indefinite shape Particles are close together, but they can move a little bit… so liquids.

8.2 Factors That Affect Rate of Dissolving and Solubility

S U R F A C E T E N S I O N INTRODUCTION. SURFACE TENSION RESULTS FROM THE COHESIVE FORCES BETWEEN LIQUID MOLECULES THE MOLECULES AT THE SURFACE DO NOT.

Poll The angle of the hill is 30 . If the ball is moving up the hill, what is its acceleration, if the +x direction is defined to be “to the right, down.

#11 % Solutions Calculations Answers. What does percent mean? Since “cent” is a prefix meaning 100 Per”cent” means per 100 So 83% means 83 per 100 – Or.

Properties of Water. Hydrogen bonds A hydrogen bond from when a hydrogen is bonded to an electronegative atom. That hydrogen will then form a bond with.

Grade 7 Science Unit 2 After a physical change, the substance is still the same substance Changes in state are physical changes The substance may have.

Chapter 11 LIQUIDS AND INTERMOLECULAR FORCES

Agenda: Hand in your Assignment (last chance!) Check your note on 4.7

11.3 Some Properties of Liquids

Surface Tension The surface of any liquid behaves as if it was a stretched membrane. This phenomenon is known as surface tension Surface tension is caused.

Chemical change or Physical change ?????.

Forces and motion 5.P.5A.5 Design and test possible devices or solutions that reduce the effects of friction on the motion of an object.

Created and adapted by: Mrs. Dube

Section 13.2 Factors Affecting Solvation

Explaining Solutions SCH3U.

Water and Aqueous Systems

Bonding Unit Learning Goal #5: Identify the how intermolecular forces of hydrogen bonds in water affect a variety of physical, chemical, and biological.

Liquids Forces Between Liquid Molecules and their Effect on the Properties of Liquids.

Liquids Forces Between Liquid Molecules and their Effect on the Properties of Liquids.

13.3 Factors affecting solubility

Water, A Polar Molecule Moretz, 2012 Biology.

Chapter 5 Section 3 Forces and Equilibrium

Physical Properties of Alkanes

Notes 2.2: Newton’s 2nd Law of Motion

The Waters of the Sea مياه البحر

Intermolecular Forces, Liquids, and Solids

Properties of the Liquid State: Surface Tension

Properties of Water Notes

Properties of Water.

Forces Walk Around.

Chapter 11 Intermolecular Forces, Liquids, and Solids

Molecular Forces Intramolecular Forces Intermolecular Forces

Section 14.3 Factors Affecting Solvation

Lecture 4.2 – The Dissolving Process and the Rate of Dissolving

constant speed. Is the object accelerating?

Solubility Notes.

Energy Movement Engineering Engineering Energy and Work

Presentation transcript:

Exploring forces that have increasing effect with decreasing scale Nano Propulsion Exploring forces that have increasing effect with decreasing scale Intermolecular Collisions (Brownian Motion) Surface Tension Recoil from release of bubbles from a surface Electrostatic Forces

Hydrogen Peroxide and Platinum Recoil from bubble release propels the boat forward Hydrogen Peroxide Solution Foam Boat Platinum-on-Carbon and Nafion Bubbles released from platinum surface

Surface Tension and Propulsion Isopropanol (IPA) Area of Reduced Surface Tension Water The reduced inward tension of IPA results in a greater outward force on the boat (as compared to water), causing a net forward propulsion.