THE ENERGY CONNECTION Topic 4. Energy The scientific definition of energy is: – the ability to do work. – Work: the ability to exert force and cause change.

Slides:

Advertisements

Similar presentations

TOPIC 4 The Energy Connection

Advertisements

Electric Potential Energy 8.1. A _________ is a combination of electrochemical cells connected together (or a single electrochemical cell). Electrochemical.

Forms of Energy. Ability to do work or cause change Produces Warmth Produces Light Produces Sound Produces Movement Produces Growth Powers Technology.

Forms of Energy Review.

 Thermal energy is the energy that is associated with the motion of the particles in a substance.  All matter is made up of atoms (particles) that move.

Energy: the ability to do work

Energy transformation or conversion is the change of energy from one form to another. One of the most common energy conversions involves the changing of.

ENERGY Energy Energy is the ability to do work.

Energy & Electricity Generation

Energy Exists in Different Forms EQ: How can I describe the common forms of energy?

The Science of Energy.

CHAPTER 1 ELECTRICITY. ELECTRIC CHARGE Charges Exert Force Atoms are composed of particles with ______. The law of electric charges states that like.

Electric Current The amount of charge that moves past a given point in a conductor per second. The amount of charge that moves past a given point in.

A Unit 4 Review. When an object is charged, it has an imbalance of electrons. Static electricity is another term used to describe this. You can charge.

Energy: its forms and uses

P, K, and M Energy Notes.

Current Electricity. Electricity Electricity is the flow of electrons through a conducting material. Electricity is the flow of electrons through a conducting.

Energy: Forms and Transformations

Energy: its forms and uses

Lesson 3.  Turbine Generators spin to cause copper wire and magnets to create electricity.  Water, wind and steam are what spin a turbine.  Turbine.

Current Electricity Chapter Electric Potential Energy  Energy is the ability to do work.  Kinetic energy is energy a moving object has because.

Science 9: Unit D: Topic 4 Notes The Energy Connection.

Chapter 22 Current Electricity.

Wind Distribution 1. Off-shore Wind distribution 2.

Electrical Vocabulary The ability to do work. Types of energy include: radiant, mechanical, chemical, magnetic, electrical, acoustic, thermal and light.

Warm-up 1.List some things that you already know about magnets. 2.Do you think magnets could cause any type of forces or motion? Why? 3.Based on what you.

Electricity Generation

 Is the ability to cause changes in matter.  Energy can transform, or change, from one form into another.  Energy is never used up.

Forms of Energy. Nature of Energy Energy is the ability to do work. If an object or organism does work, then it uses energy. Work is the use of a force.

Solar Energy By: Kyle McPhail. Facts Solar energy is radiant light and heat from the sun Every hour the sun beams down enough energy to power to planet.

TYPES OF ENERGY by:Mckezie Mccool. ENERGY Energy is the ability to do work.

Energy Notes ? Energy: the ability to do work.

Energy Notes Forms of Energy.

Move It, Move It!!!! Forms of Energy. Mechanical Energy Energy of movement(can be in a potential or kinetic state)

Lesson 4.  Charge does not flow on its own. An electric charge has a certain amount of electrical potential energy because of the electric field set.

ELECTRIC CURRENT.. What is electric current ? Electric current is caused due to the flow or movement of electric charges. The flow of electric charges.

8.1 ELECTRIC POTENTIAL ENERGY AND VOLTAGE BC Science 9: p

FORMS OF ENERGY. In science, the word ENERGY means the ability to move or change matter (do work). We cannot directly see energy, but everything we do.

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.

Which of the following is a conversion from light energy to chemical energy? A. Turning on a stove to heat dinner. B. Making toast in a toaster. C. Growing.

Forms of Energy.

 Energy= the ability to do work, measure in Joules (J)  Work- the transfer of energy 2 types of energy: 1. kinetic energy 2. potential energy.

8.1 Electric Potential Energy and Voltage.  A battery is a combination of electrochemical cells connected together  Electrochemical cells convert chemical.

Electrical Potential Energy and Voltage

Work Book / Text Book.

FORCES & MOTION.

Energy: Forms and Transformations

Forms of Energy.

Forms of Energy Foldable

Forms of energy.

What is an example of potential energy?

Forms of Energy Foldable

What is energy? Ability to do work or cause change Produces Warmth

Sources of Electrical Energy Small Scale

ENERGY Atoms vibrating in a solid. The atoms have energy because of their motion.

8.1 Electric Potential Energy & Voltage

Forms of Energy Unit 3 Part 2 Vocabulary.

Sources of Potential Difference

Kinetic Potential Chemical Thermal Definition Energy of motion

Topic 4: Energy and Electricity

Forms of Energy.

The Nature Of Energy.

Energy and Electronics

The Nature Of Energy.

Forms of Energy.

Presentation transcript:

THE ENERGY CONNECTION Topic 4

Energy The scientific definition of energy is: – the ability to do work. – Work: the ability to exert force and cause change

Types of Energy The four most common forms of energy are: – Chemical energy: potential or stored energy stored in chemicals, released when the chemicals react – Electrical energy: energy of charged particles, transferred when they travel from place to place – Mechanical energy: energy possessed by an object because of its motion or its potential to move – Thermal energy: kinetic energy of a substance

Heat to Electricity Heat can be converted directly to electric energy using a thermocouple. A thermocouple is a loop of two wires made of different types of metals. The wires are wrapped together at both ends, or “junctions.” When one junctions is heated, a small electric current is produced. Copper and constantan (a copper nickel alloy), or iron and constantan, are the most common metals used in modern industrial thermocouples.

Heat to Electricity A thermo-electric generator is a device based on a thermocouple that converts heat directly into electricity without moving parts. Heat from a gas burner or another heat source moves though several thermocouples connected in series – a thermopile – creating a potential difference. Thermopiles are extremely reliable, low-maintenance devices. They are used in remote locations to generate limited quantities of electrical energy that are sufficient to power, for example, emergency communications equipment.

Electricity to Motion Sound can be produced when an electric current causes vibrations in a tiny crystal – the piezoelectric effect.piezoelectric effect

Motion to Electricity A barbecue “spark” lighter uses the piezoelectric effect in reverse. While a piezoelectric crystal is being compressed or pulled. The crystal acts as a source of electric energy.

Electricity to Light Piezoelectric crystals can produce light when they are hit together Some recent types of flashlights do not have a light bulb. Instead they have light-emitting diodes (LEDs) LEDs use only a fraction of the power of a traditional bulb and last for years as opposed to months

Light to Electricity The device that is most commonly used to produce electricity from light is called a photovoltaic (PV) cell, or solar cell. PV cells are made of semiconducting materials such as silicon. When light strikes the cell, light is absorbed by the semiconductor material, breaking electrons loose and allowing them to flow freely.