Energy Chapter 4.

Slides:



Advertisements
Similar presentations
Change Requires Energy
Advertisements

Energy. What is Energy? Energy is the ability to cause change Any time you move, or move something you are using energy.
Energy Chapter 4.
THE NATURE OF ENERGY IPC Notes. ENERGY Energy is involved in every change that occurs Energy can be found in many different forms ex) thermal, electrical,
Section The Nature of Energy. Warm-Up: Examine your lab data from yesterday. What relationship do you notice between momentum and kinetic energy?
The Nature of Energy Section 4.1. Energy Every change that occurs involves. Every change that occurs involves. Moving objects have energy Moving objects.
Energy Every observable change requires energy.
Types of Energy Sections What is energy? Energy is the ability to do work Like work, energy is measured in joules (J) What are some examples.
What is the relationship between kinetic and potential energy?
Unit 5 – Lecture 1. Energy Energy – the ability to do work the ability to cause change measured in joules symbol: [as in.. E = mc 2 ] E.
Mechanical Energy Ch. 4. Energy Is the ability to do work. Energy = work Units = Joules (J) James Prescott Joule.
Kinetic and Gravitational Potential Energy
Chapter 5 Section 1  Every change that occurs requires energy.  Energy is the ability to do work.  All moving objects have energy  You can tell an.
Unit 2 Lesson 2 Kinetic and Potential Energy
Energy. What is energy?  Every change that occurs… big or small… requires energy.  When something is able to change its environment or itself, it has.
CHAPTER 4: ENERGY. SECTION 1: The Nature of Energy.
Energy (chapter 5) Energy – the ability to do work Electrical, thermal, chemical, etc.
Work and Energy Ch. 9.3 What is Energy?.
Energy  Change Requires Energy  What is energy? –The ability to cause change or do work  Is energy scalar or vector?
Chapter 15 Sections 1-2.  Energy is the ability to do work.  Energy is measured in Joules, just like work.
Chapter 4 Energy
Chapter 5.1 The Nature of Energy
Ms. Moore 10/1/12.  Energy is required for any change that occurs, no matter how small.  Energy is the ability to cause change.  Examples:  Forms.
Describing Energy. What does energy mean to you?  Let’s Discuss (this means you don’t have to write it down) How do you commonly use the word energy.
Chapter 12 Work, Energy and Power. Energy Is the ability to do work Expressed in Joules (dzuls) Forms of energy: Mechanical, Heat, light, and Chemical.
PS-6.1: explain how the law of conservation of energy applies to the transformation of various forms of energy PS-6.2: explain the factors that determine.
Energy is the ability to cause change. Section 2: Describing Energy K What I Know W What I Want to Find Out L What I Learned.
Energy. Energy and Work Energy – the ability to do work Work is a transfer of energy Energy is also measured in Joules.
Unit 2 Lesson 2 Kinetic and Potential Energy
Section 1 - The Nature of Energy
Potential and Kinetic Energy
Potential and Kinetic Energy
Energy Section 14.3 Energy.
Unit 2 Lesson 2 Kinetic and Potential Energy
Energy Ch. 4-1.
ENERGY.
Chapter 4 Energy.
Unit 2 Lesson 2 Kinetic and Potential Energy
Energy Chapter 4.
Section 2: Describing Energy
Energy Energy: the ability to cause change. Measured in Joules (J)
Potential and Kinetic Energy
Potential and Kinetic Energy
Describing Energy.
Potential and Kinetic Energy
Nature of Energy Chapter 4.1.
What is energy? “the ability to do work”
Work-Energy Theorem Energy is the ability to do work.
Potential and Kinetic Energy
Kinetic and Potential Energy
Potential and Kinetic Energy
Energy.
The Nature of Energy.
Potential and Kinetic Energy
Bell Work Turn in lab Solve the following:
Potential and Kinetic Energy
Chapter 4, Section 1 Notes The Nature of Energy.
Potential and Kinetic Energy
Science 9 Chapter 4: Energy
Chapter 5, Section One Pages
What is energy? “the ability to do work”
Potential and Kinetic Energy
Review.
ENERGY.
Essential Questions What is the difference between kinetic energy and potential energy? How can you calculate kinetic energy? What are some different forms.
Potential and Kinetic Energy
Potential and Kinetic Energy
Ch 4 Energy Kinetic Energy (KE) – the energy a moving object has because of its motion; depends on mass and speed of object KE = mv2/2 Joule – SI unit.
Potential and Kinetic Energy
Net Force Power Up What are balanced forces?
Presentation transcript:

Energy Chapter 4

What is Energy? Every change that occurs requires energy Energy is the ability to cause change

Kinetic Energy Kinetic energy is the energy a moving object has because of its motion It depends on the objects mass and speed Kinetic energy (in joules) = ½ mass (in kg) x [speed (in m/s)]2 KE = ½ mv2 Joule is the unit for energy

Solving for Kinetic Energy A jogger with a mass of 60 Kg is moving at a speed of 3.0 m/s. What is the jogger’s kinetic energy? m = 60 kg Speed = v =3.0 m/s KE= ½ mv2 KE= ½ x 60 x 3.02 = 270 Don’t forget your units! Your final answer is 270 J

Potential Energy Potential energy is stored energy Types: Elastic potential energy is stored energy by something that can stretch or compress Ex. Rubber band Chemical potential energy is energy stored in chemical bonds

Potential Energy Gravitational Potential Energy is energy stored by objects due to their position above Earth’s surface. Depends on the mass and height above the ground Gravitational potential energy (J) = mass (kg) x acceleration of gravity (m/s2 ) x height (m) GPE = mgh

Solve for GPE What is the gravitational potential energy of a ceiling fan that has a mass of 7.0 kg and is 4.0 m above the ground? M = 7.0 kg H = 4.0 m Acceleration of gravity is g = 9.8 m/s2 GPE = mgh GPE = 7 x 9.8 x 4 = 274 J DON’T FORGET YOUR UNITS

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

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