Forms of Energy Chapter 5 Energy and Energy Resources Lesson 1 Mr. Nigh Science 7.

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Presentation transcript:

Forms of Energy Chapter 5 Energy and Energy Resources Lesson 1 Mr. Nigh Science 7

Energy Energy is the ability to cause change All the activities taking place in this picture require energy EnergyHasManyForms

Kinetic Energy The energy due to motion Kinetic Energy increases as mass increases Kinetic Energy increases as speed increases

Potential Energy-Stored Energy Theenergy of ofPosition OrChemicalcomposition

Gravitational Potential Energy Gravitational Potential Energy increases when weights are held overhead

Elastic Potential Energy The rubber bands elastic potential energy increases when you stretch the rubber band. Or compress a spring

Chemical Potential Energy Chemical potential energy is energy stored in the chemical bonds between atoms. It is released when chemical reactions take place.

Work Work is the transfer of energy that occurs when force is applied over a distance. This Is Work Not Work

Forms of Energy

Mechanical Energy The energy that moves objects

Sound Energy Sound results from the vibration of particles in solids, liquids, and gasses ***Since sound needs to originate from particles in the air vibrating, it cannot travel through Empty Space

Thermal Energy Thermal Energy The total amount of energy from the movement of particles that make-up objects Always moves from warmer to colder objects

Electric Energy When you turn on a fan, electric current runs through the motor. Electric energy is the energy that an electrical current carries.

Radiant Energy Energy transmitted through space in the form of electromagnetic waves

Nuclear Energy The center of an atom-the nucleus is where nuclear energy is stored. When a heavy atom breaks apart (fission) or when two small atoms join together (fusion) energy is released released

The Sun a controlled Fusion reaction due to vast amounts of heavy elements

Chemical Energy Energy that is stored in the chemical composition of matter

Study Questions 1.Which type of energy increases when you compress a spring? 2.Which type of energy increases when you lift a large box? 3.What is the energy of motion? 4.What form of energy is due to the motion of particles? 5.What form of energy can travel through space? 6.What form of energy is stored in the nucleus of an atom?

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