Presentation is loading. Please wait.

Presentation is loading. Please wait.

Unit 2 Lesson 1 Introduction to Energy

Published byShona Floyd Modified over 6 years ago

Similar presentations

Presentation on theme: "Unit 2 Lesson 1 Introduction to Energy"— Presentation transcript:

1 Unit 2 Lesson 1 Introduction to Energy
Copyright © Houghton Mifflin Harcourt Publishing Company

2 Get Energized! What are two types of energy?
Unit 2 Lesson 1 Introduction to Energy Get Energized! What are two types of energy? Energy is the ability to cause change. Energy takes many different forms and causes many different effects. There are two general types of energy: kinetic energy and potential energy. Copyright © Houghton Mifflin Harcourt Publishing Company

3 What are two types of energy?
Unit 2 Lesson 1 Introduction to Energy What are two types of energy? Kinetic energy is the energy of an object that is due to motion. All moving objects have kinetic energy. The amount of kinetic energy an object has depends on its mass and speed. Kinetic energy increases as mass increases and as speed increases. Copyright © Houghton Mifflin Harcourt Publishing Company

4 What are two types of energy?
Unit 2 Lesson 1 Introduction to Energy What are two types of energy? Potential energy is the energy that an object has due to its position, condition, or chemical composition. Potential energy that is the result of an object’s position is called gravitational potential energy. Gravitational potential energy increases as the object’s height or mass increases. Copyright © Houghton Mifflin Harcourt Publishing Company

5 What are two types of energy?
Unit 2 Lesson 1 Introduction to Energy What are two types of energy? A change in the condition of an object affects its potential energy. Stretching a rubber band increases its potential energy. Chemical potential energy depends on chemical composition. As bonds break and new bonds form between atoms during a chemical change, energy can be released. Copyright © Houghton Mifflin Harcourt Publishing Company

6 Can objects have potential and kinetic energy at the same time?
Unit 2 Lesson 1 Introduction to Energy Can objects have potential and kinetic energy at the same time? An object can have both potential and kinetic energy at the same time. A skater has kinetic energy as he moves down a ramp and potential energy due to his position on the ramp. Copyright © Houghton Mifflin Harcourt Publishing Company

7 In Perfect Form What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy In Perfect Form What forms can energy take? Kinetic energy and potential energy are two types of energy that can come in many different forms. Some common forms of energy include mechanical, sound, electromagnetic, electrical, chemical, thermal, and nuclear energy. Energy is expressed in joules (J). Copyright © Houghton Mifflin Harcourt Publishing Company

8 What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy What forms can energy take? Mechanical energy is the sum of an object’s kinetic energy and potential energy. It is the energy of position and motion. Sound energy is kinetic energy caused by the vibration of particles in a medium such as steel, water, or air. Copyright © Houghton Mifflin Harcourt Publishing Company

9 What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy What forms can energy take? Electromagnetic energy is transmitted through space in the form of electromagnetic waves. These waves are caused by the vibration of electrically charged particles. Electromagnetic waves include visible light, X-rays, and microwaves. Copyright © Houghton Mifflin Harcourt Publishing Company

10 What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy What forms can energy take? Electrical energy is the energy that results from the position or motion of charged particles. Chemical energy is a form of potential energy. The amount of chemical energy in a molecule depends on the kinds of atoms and their arrangement. Copyright © Houghton Mifflin Harcourt Publishing Company

11 What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy What forms can energy take? The thermal energy of an object is the kinetic energy of its particles. The faster the molecules in an object move, and the more particles the object has, the more thermal energy it has. Heat is the energy transferred from an object at a higher temperature to an object at a lower temperature. Copyright © Houghton Mifflin Harcourt Publishing Company

12 What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy What forms can energy take? The nucleus of an atom is the source of nuclear energy. When an atom’s nucleus breaks apart, or when the nuclei of two small atoms join together, energy is released. Copyright © Houghton Mifflin Harcourt Publishing Company

13 What forms can energy take?
Unit 2 Lesson 1 Introduction to Energy What forms can energy take? What forms of energy can you identify in this pinball game? Copyright © Houghton Mifflin Harcourt Publishing Company

14 Space Weather and Technology
Unit 2 Lesson 1 Introduction to Energy Space Weather and Technology Space weather includes any activity happening in space that might affect Earth’s environment. Space weather can damage satellites and interrupt phone signals and signals to Global Positioning System (GPS) receivers. Auroras are caused by electrically charged particles of solar winds hitting Earth’s magnetic field. They can interrupt airplane communications. Copyright © Houghton Mifflin Harcourt Publishing Company

15 Transformers What is an energy transformation?
Unit 2 Lesson 1 Introduction to Energy Transformers What is an energy transformation? An energy transformation takes place when energy changes from one form into another form. Any form of energy can change into any other form of energy. Often, one form of energy changes into more than one form. Copyright © Houghton Mifflin Harcourt Publishing Company

16 What is an energy transformation?
Unit 2 Lesson 1 Introduction to Energy What is an energy transformation? In a flashlight, chemical energy is transformed into electrical energy. The electrical energy is then transformed into light and thermal energy. Copyright © Houghton Mifflin Harcourt Publishing Company 16

17 Unit 2 Lesson 1 Introduction to Energy
Is energy conserved? A closed system is a group of objects that transfer energy only to one another. Energy is conserved in all closed systems. The law of conservation of energy states that energy cannot be created or destroyed. It can only change forms. All of the different forms of energy in a closed system always add up to the same total amount of energy. Copyright © Houghton Mifflin Harcourt Publishing Company

Download ppt "Unit 2 Lesson 1 Introduction to Energy"

Similar presentations

Energy The ability to cause a change.

Energy The ability to cause a change.
Introduction to Energy Essential Question: What is energy?

Introduction to Energy Essential Question: What is energy?
Energy and Transformation of Energy

Energy and Transformation of Energy
What is Energy  Energy is the ability to cause change. Change in ANYTHING  There are two general types of energy Kinetic energy Potential energy.

What is Energy  Energy is the ability to cause change. Change in ANYTHING  There are two general types of energy Kinetic energy Potential energy.
Forms and Transformations

Forms and Transformations
Unit 6 Lesson 1 Energy Conversion and Conservation

Unit 6 Lesson 1 Energy Conversion and Conservation
Unit 2 Lesson 1 Introduction to Energy

Unit 2 Lesson 1 Introduction to Energy
Energy.

Energy.
Unit 3 Lesson 2 Conservation of Energy

Unit 3 Lesson 2 Conservation of Energy
Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.

Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.
Forms and Transformations

Forms and Transformations
ENERGY Two main types -- kinetic and potential. KINETIC ENERGY Energy of motion Increases as mass increases Increases as speed increases.

ENERGY Two main types -- kinetic and potential. KINETIC ENERGY Energy of motion Increases as mass increases Increases as speed increases.
Unit 2 Lesson 1 Introduction to Energy

Unit 2 Lesson 1 Introduction to Energy
Unit 2 Lesson 1 Introduction to Energy

Unit 2 Lesson 1 Introduction to Energy
Energy Chapter 4.

Energy Chapter 4.
Energy Transfer & Transformations How does energy impact the motion of an object?

Energy Transfer & Transformations How does energy impact the motion of an object?
SOL PS 6 Energy Potential energy Gravitational potential energy Kinetic energy The ability to do work. Energy stored based on position or chemical composition.

SOL PS 6 Energy Potential energy Gravitational potential energy Kinetic energy The ability to do work. Energy stored based on position or chemical composition.
Unit 3 Lesson 1 Kinetic and Potential Energy Copyright © Houghton Mifflin Harcourt Publishing Company.

Unit 3 Lesson 1 Kinetic and Potential Energy Copyright © Houghton Mifflin Harcourt Publishing Company.
Forms of Energy. Energy Energy Energy- The ability to do work Energy- The ability to do work Work- A transfer of energy Work- A transfer of energy Work.

Forms of Energy. Energy Energy Energy- The ability to do work Energy- The ability to do work Work- A transfer of energy Work- A transfer of energy Work.
Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.

Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.

Similar presentations

Ads by Google