Presentation on theme: "Mechanical, Electromagnetic, Electrical,"— Presentation transcript:
1Mechanical, Electromagnetic, Electrical, TYPES OF ENERGYMechanical, Electromagnetic, Electrical,Chemical and Thermal
2What is Energy Energy can be defined as the ability to do work. Whenever work is done, energy is transformed or is transferred from one system to another.
3Main Forms of Energy Mechanical (Kinetic & Potential) Electromagnetic (Radiant)ElectricalChemicalThermal (Heat)Sound EnergyNuclear Energy
4What is Mechanical Energy? Energy due to a object’s motion (kinetic) or position (potential).The bowling ball has mechanical energy.When the ball strikes the pins, mechanical energy is transferred to the pins!
10What is Thermal Energy?Heat energyThe heat energy of an object determines how active its atoms are.A hot object is one whose atoms and molecules are excited and show rapid movement.A cooler object's molecules and atoms will show less movement.
11Nuclear EnergyIs stored in the nucleus of an atom and is released during nuclear reactions.Ex: Nuclear fission and fusionNuclear power plants use fission reactions to produce electricity.
12Kinetic & Potential Energy Energy of motionFormula:KE = ½ mv²KE = kinetic energy (J)m = mass (kg)v = velocity (m/s)Energy of position or stored energyFormula:PE = mghPE = potential energy (J)m = mass (kg)g = gravity (m/s²)h = height (m)
13Practice ProblemsHow much kinetic energy does a 10 kg object traveling 3 m/s?How much potential energy does a 4 kg object have that is 5 meters off the ground?Calculate how much energy a 7 kg object sitting on a 3 meter ledge has.A 4 kg rock is rolling 25 m/s. How much energy does the rock have?A rolling ball has 24 joules of kinetic energy and is rolling 3 m/s. Find its mass.
14ELECTROMAGNETIC ENERGY QUIZ TIME!What type of energy cooks food in a microwave oven?ELECTROMAGNETIC ENERGYWhat type of energy is the spinning plate inside of a microwave oven?MECHANICAL ENERGY
15QUIZ TIME!Electrical energy is transported to your house through power lines.When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?MECHANICAL ENERGY
16QUIZ TIME!What energy transformation occurs when an electric lamp is turned on?ELECTRICAL ENERGYELECTROMAGNETIC ENERGY
17What types of energy are shown below? Mechanical and Thermal Energy(Don’t forget friction)
18What type of energy is shown below? Chemical Energy
19What types of energy are shown below? Electrical, Mechanical andElectromagnetic Energy
20What type of energy is shown below? Chemical Energy (yummy)
21What type of energy is shown below? Thermal Energy
22Draw a flow map showing the flow of energy transformations in a car from starting vehicle to driving. You should have 5 different types of energy.
23Energy Transfer Sound (mechanical) Electrical Thermal Mechanical ChemicalElectricalLight(Electromagnetic)