How’s the temperature in here? Fire is hot and snow is cold. But if you want to measure the temperature in here, you need a thermometer.

Slides:



Advertisements
Similar presentations
Chapter 10 Heat and Temperature.
Advertisements

MEASURING THE MOVEMENT OF MOLECULES
Thermal Energy & Society
Thermal Energy and Temperature
Bell work The temperature of boiling water is 100° on the Celsius scale and 212° on the Fahrenheit scale. Look at each of the following temperatures and.
HEAT AND TEMPERATURE Temperature  quantity that tells “ how warm or how cold” a body is with respect to some standard scale.  It is the average kinetic.
Heat, Thermal Energy, and Temperature
Physical Science Lecture 46 Instructor: John H. Hamilton.
Physical Science 13. Heat and Temperature
Energy, Heat and Heat Transfer
SECTION 10-1 TEMPERATURE.
Heat The motion of the particles of matter. Heat Transfer Heat flows from an area of high heat to an area low in heat. Heat flows from an area of high.
Heat energy is due to the movement of atoms or molecules. As atoms move faster they create more energy = causing Heat!
Integrated Physics and Chemistry
Chapter 16 Heat and Temperature.
Heat and TemperatureSection 1 SPS7.c Determine the heat capacity of a substance using mass, specific heat, and temperature.
Ch 16 Thermal Energy and Heat
STATES OF MATTER. I. STATES OF MATTER A. Kinetic Theory of Matter 1.Matter exists as a solid, liquid, gas, or plasma. 2.Tiny particles (atoms) in constant.
Fahrenheit, Celsius & Kelvin. Temperature  Is a measure of how hot or cold an object is compared to another object.  Indicates that heat flows from.
What is a phase change? - when matter changes from one form to another due to the addition or removal of heat.
What is Thermal Energy? Thermal energy is the amount of heat caused by the motion of atoms in a substance Thermal energy is the kinetic energy of the particles.
Chapter 6. Heat Definition: the transfer of energy (thermal) between objects that are at different temperatures. Definition: the transfer of energy (thermal)
Temperature You use the words hot and cold to describe temperature. Something is hot when its temperature is high. When you heat water on a stove, its.
Chapter 9 - Thermal Energy Sections 9.1, 9.2, & 9.3.
NOTES-Chapter 12 Thermal Energy. Heat is defined and expressed by the Kinetic Molecular Theory of heat.
Temperature depends on particle movement Chapter 4.1
14-1 : Temperature and Thermal Energy. Temperature The measure of the average kinetic energy of the particles in a substance. The measure of the average.
Comparing Temperature Scales Units of Temperature Fahrenheit scale 0 F Celsius scale commonly used by scientists water boils at C 0 K coldest temperature.
Heat and the 2 nd Law of Thermodynamics.  Although we learned in the first law that the total amount of energy, including heat, is conserved in an isolated.
Temperature and Heat. Kinetic theory of matter What is Kinetic Energy? The energy of motion. What is Matter? The combination of particles in a substance.
Heat Molecules and Motion The motion of molecules produces heat The motion of molecules produces heat The more motion, the more heat is generated The.
Temperature How Hot is it?. Temperature Temperature is a measure of the average kinetic energy of a molecule of a substance, or… How “hot” it is. On Temperature.
 What is temperature??  The degree of hotness or coldness of a body or environment.  A measure of the warmth or coldness of an object or substance.
CHAPTER 3 Temperature Energy and Heat 3.1 Temperature.
Active Chemistry Kinetic Molecular Theory and the Gas Laws.
Temperature and Heat: page 73 QUESTION: Why do objects get cold? OBJECTIVE: SWBAT explain the difference between temperature and heat. VOCABULARY:temperature.
How does understanding the science and technology of heat and temperature improve the quality of our lives?
What is Heat?. Why did you put a jacket on this morning? What is cold? What is hot? Why are faucets labeled “H” and “C”? When you first turn on the “hot”
Thermal Force Unit 1.4
Temperature vs. Heat. Thermal Energy The total potential and kinetic energy of the particles in a system make up thermal energy. The kinetic energy comes.
… No—they are not all the same thing!.  Kinetic = Movement  Molecular = Molecules So, we will be discussing how Molecules move.
Heat and Thermometer ELED 4312 Science Content. Contents Why do we need thermometer? How does a thermometer work? Change of Matter Kinetic theory Heat.
Temperature Feeling hot, hot, hot….. Temperature Temperature – a measurement of how much kinetic energy the particles contain.
Chapter 16 & 17 Heat and Temperature. Title : Heat and TemperatureDate: Temperature Temperature Scale Fahrenheit Celsius Kelvin Energy Transfer Conduction.
Heat The motion of the particles of matter. Heat Transfer Heat flows from an area of high heat to an area low in heat. Heat flows from an area of high.
7.2 Temperature and the Phases of Matter
@earthscience92. What is Energy? Energy – Is the ability to cause change – Many forms of energy – Two general forms of energy are Kinetic energy Potential.
Temperature Chapter 13.1.
Chapter 6  All matter is made up of atoms or molecules.  These particles are constantly in motion. The energy of motion is called kinetic energy. 
Heat and Temperature Heat and Temperature. Heat and Temperature Is it cold in here? Is it cold in here? How about outside? How about outside? What would.
Investigation One.  The term used to describe the total of all the energy within a substance.  Heat is also known as thermal energy.  Includes both.
HEAT, TEMPERATURE, PHASE CHANGE. HEAT AA form of energy that a substance has because of the motion of its molecules. - When a substance gains heat its.
Thermal Energy & Heat 1.Temperature – The measure of the average kinetic energy of the particles that make up a substance. 2.Temperature Scales – Fahrenheit,
Thermal Energy vs. Temperature
Gases and Kinetic Molecular Theory. This PowerPoint will cover Properties of Gases Definition of Kinetic Molecular Theory Definition of Temperature Explanation.
Topic: Heat and Temperature PSSA: C / S8.C.2.1.
Temperature Temperature Temperature- a measure of a substances average kinetic energy. 1. hot particles will have more kinetic energy than cool.
Temperature How hot or cold something is. What make something hot?
Temperature and the Kinetic Theory of Matter
Temperature and Heat Unit 6: Thermal Energy.
NOTES 14 - Temperature & Thermal Energy
Heat and Temperature Notes.
Heat and Temperature Heat is a type of energy.
Temperature, Thermal Energy and Heat Temperature
Chapter 10 Heat and Temperature
Bell work The temperature of boiling water is 100° on the Celsius scale and 212° on the Fahrenheit scale. Look at each of the following temperatures and.
Chapter 3, Lesson 3, Temperature, Thermal Energy, and Heat
Thermal Energy Temperature and Heat.
Ms. Messina’s Science Class
Temperature and Thermal Energy
Presentation transcript:

How’s the temperature in here? Fire is hot and snow is cold. But if you want to measure the temperature in here, you need a thermometer.

HotCold Hot vs. Cold Atoms are in constant motion. Atoms in the gas phase are zooming around the room. (Translation) In the solid phase, the atoms can’t move from place to place, but they can shake back & forth. (Vibration) When something feels hot, the atoms inside it are moving very fast. link

Thermometers Galileo invented the 1 st thermometer in Didn’t have a scale though.

Thermometers Liquid-in-glass thermometers – 1630’s No standard! Each scientist had his own scale divisions. Couldn’t compare temperatures in different places.

Thermometers Early 1700’s: developed standards Fahrenheit ( ) invented alcohol & mercury thermometers. Proposed 1 st scale: 32  F = freezing point of water & 212  F = boiling point of water at 1 atm.

Thermometers Celsius ( ) Proposed 0  C = freezing point of water. 100  C = boiling point of water.

Source:

How do thermometers work? Molecules are in constant motion – they have kinetic energy. Air molecules collide with the glass. Kinetic energy is transferred to the glass & then to the liquid through the collisions.Air molecules collide with the glass. Kinetic energy is transferred to the glass & then to the liquid through the collisions. Molecules in liquid move faster and spread apart. Length of liquid in column changes.Length of liquid in column changes.

Absolute Zero Postulated by Kelvin in At absolute zero, the atoms are stopped. Outer space is 3  above absolute zero. Absolute zero = 0K =  C.

Lowest Temperature Ever 20 billionths of a degree above absolute zero (0K) Press Release

Comparison of 3 Temperature Scales source

Degree Size Kelvin & centigrade scales, 100  between freezing pt. & boiling pt. of water. So degrees are the same size; scales are offset. Fahrenheit scale has 180  between freezing pt. & boiling pt. of water. More degrees, so they must be smaller.

Conversions between scales K =  C Or  C = K – 273

Temperature Conversions -150  C -100  C -45  C 0  C 38  C 85  C 115  C 200  50K 100K 150K 200K 250K 300K 350K 400K 123K 173K 228K 273K 311K 358K 388K 473K -223  C -173  C -123  C -73  C -23  C 27  C 77  C 127  C

Temperature vs. Heat Is temperature the same thing as heat? No. Temperature doesn’t depend on how much matter you have, but heat does.No. Temperature doesn’t depend on how much matter you have, but heat does. For example, does it cost more to heat a swimming pool up to 40  C or a teacup to 100  C?

So what is temperature? Temperature is a measure of the average kinetic energy of the particles of a system.Temperature is a measure of the average kinetic energy of the particles of a system.

What is Heat? The energy that flows from a hot object to a cold object.The energy that flows from a hot object to a cold object. Heat is a form of energy.Heat is a form of energy.