How much energy does this Snickers bar contain?

Slides:



Advertisements
Similar presentations
Food as Energy Section B Intro to Lab Activity B.1.
Advertisements

Work, Potential Energy, Kinetic Energy & Power
Energy Kinetic and potential Energy can be classified as potential or kinetic Potential energy: energy of position Potential energy: energy of position.
Energy Definition: In general, the word energy refers to a concept that can be defined as "the potential for causing changes", and therefore one can say.
Potential and Kinetic Energy Energy: is the ability to do work.
How many Joules of energy are required to raise the temperature of 75 g of water from 20.0 o C to 70.0 o C? Heat =75 g x 50.0 o C x 4.18 J/g o C Heat=
 Energy (heat) may be expressed in joules or calories.  1 calorie (cal) = joules (J)  How many joules in 60.1 calories?  How many calories.
Question 1 What is the definition of calorie? A). A calorie is a measure of energy B). A calorie is the amount of stuff you have ate. C). A calorie is.
Chapter 3 Scientific Measurements. Describe the following object in your notes.
Energy Kinetic and potential Forms of Energy Mechanical - energy with which moving objects perform work Ex: bicycle, sound Mechanical - energy with which.
Nut Calories – Pretzel Calories. Mass = 4.12g Nut Calories – Pretzel Calories Mass = 4.12g Mass Al Cup= g.
ENERGY.
Chapter 11.  Kinetic Energy – energy of motion  Formula:KE = 1/2mv 2  Units of KE =the joule  m = mass in kg  v = velocity in m/s.
Energy. Energy & Work Closely related Energy: ability to do work Work: transfer of energy Both measured in Joules.
ENERGY The stuff that makes things go.. What is Energy? - Energy = The ability to do work or cause a change in motion. -Measured in Joules (J) & calories.
REVIEW FOR QUIZ HEAT.
Energy Changes in Reactions. Learning objectives  Perform simple energy calculations using different energy units  Apply specific heat concept to heat.
Temperature(“Degree of hotness”) - is the distribution of energy through the molecules. - related to the motion (speed) of molecules. Heat ≠ Temperature.
Ch. 15: Energy and Chemical Change
Thermochemistry. Do Now – Check and edit prelabs Objective – Thermochemistry Exothermic, endothermic, calorie, joule, heat capacity, and specific heat.
Unit 07 “Work, Power, Energy and Energy Conservation”
Dimensional Analysis.
Quantifying Heat The Math!.
Reaction Energy and Reaction Kinetics Chapter 17 Notes.
Work and Energy Work Kinetic Energy Work – Energy Theorem
THE ABILITY TO DO WORK Energy. Cells use energy for: Movement  Muscles, flagella wiggling Making and breaking chemical bonds.  Joining A.A. into protein.
Formulas. Work Units – joules (J) Power Units – watts (w)
Work Kinetic Energy Work – Energy Theorem Gravitational Potential Energy Mechanical Energy Conservation of Energy Work Kinetic Energy Work – Energy Theorem.
Section 15.1Energy and Its Forms
1. A 322 g sample of lead (specific heat = J/g o C) is placed into 264 g of water at 25 o C. If the system's final temperature is 46 o C, what was.
Quantifying Heat The Math!. What is HEAT?  It’s the flow of energy due to a difference in temperature.  From a higher temperature (higher kinetic energy)
Work and Power Efficiency, Newton, Joules, Watts, Joules per second.
What Is Energy? Ch. 8 Lesson 1. How Are Energy, Work, and Power Related?
Measuring Energy Changes What a great way to spend block day!
Section 14 Work, Power, and Energy. More Power!!!!! What does he mean?
Section 10.2 The Flow of Energy 1.To convert between different energy units. 2.To understand the concept of heat capacity. 3.To solve problems using heat.
Calories from food Chapter 12. Calories Measurement of the energy content in a substance = heat Calorie = E require to raise the temperature of 1 gram.
Chapter 13 Energy and Work Section 4 Power. Power Power is the rate at which work is done or the amount of work done in a unit of time. Power is the rate.
Heat energy is measured in units called joules or calories. 1 calorie is the amount of heat energy needed to raise the temperature of 1.0 g (mL) of water.
Heat = mass X change in temp X specific heat 1.10 g X 33 o C X 0.90 J/g o C = 297 J g X  T X 0.50 J/g o C = 5275 J 1.25  T = 5275 – divide both.
Specific Heat Quantity of energy needed to increase the temperature of one gram of a substance by one degree Celsius/Kelvin Every substance has its own.
CHAPTER 4 ENERGY Energy changes With all motion energy is required. When an object moves it has Kinetic energy (motion). When an object is standing still.
Power pg. 37.
Potential Energy Objectives P Define potential energy
Bell Ringer May 8th Check your grades….
11.3 – NOTES Combustion.
Temperature and Heat Unit Conversions
Ch. 16 Energy + Chemical Change
Energy EQ: What is the relationship between heat energy and temperature?
Projectile Motion Read page 134 in the text. Describe what is happening in figure 7-1. Students will be able to: Describe projectile motion Use Kinematic.
The Flow of Energy.
Energy IN = Energy OUT Means ALL Energy
Work and Power.
Work and Energy Write definitions for the following: Work Energy Power
Unit Conversion Please complete the unit conversion practice sheet. 1.
Chapter 3 Matter and Energy
The Acceleration Due to Gravity
Work done by a Variable force.
Chapter 2 Matter and Energy
3.2 and 3.3 Conversion Problems
Introduction to Agriculture AAEC – Paradise Valley Spring 2015
Chapter 7 Daily Questions
Efficiency.
Work Power Energy.
Unit 3 - Energy Learning Target 3.2 – Be able to use the equations for Potential Energy & Kinetic Energy.
Energy IN = Energy OUT Means ALL Energy
Objectives Define work in terms of energy.
Energy – M & M’s Energy.
Efficiency.
Ch. 4 – Energy I. Energy: The ability to cause a change!
Presentation transcript:

How much energy does this Snickers bar contain? Objective(s)/SWBAT (Students will be able to): Determine number of calories burned Calculate work done. Calculate Power Convert from joules to calories and Kcal Activities: Measure height of steps, time to run steps, and mass Calculate work and power Convert to Cal Closure: Example problems Assessment: Problem Set Test Keystones: 3.2.B 1

Measurements to be made. Your mass. Height of steps in meters. Time from bottom to top. Keystones: 3.2.B 2

Calculate Work done Keystones: 3.2.B 3

Calculate Power Keystones: 3.2.B 4

Unit Conversion Keystones: 3.2.B 5

How many laps would you need to do to burn off this Snickers bar? Keystones: 3.2.B 6

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.