Heat and Energy Review. Types of Energy Heat Heat Light Light Sound Sound Electrical Electrical Solar (Sun) Solar (Sun) Chemical Chemical Wind Wind Water.

Heat and Energy Heat and Energy ReviewReview

Types of EnergyTypes of Energy HeatHeat LightLight SoundSound ElectricalElectrical Solar (Sun)Solar (Sun) ChemicalChemical WindWind WaterWater MagneticMagnetic MechanicalMechanical NuclearNuclear

VocabularyVocabulary Thermal EnergyThermal Energy – Energy due to – Energy due to

moving particlesmoving particles Conduction and ConductorConduction and Conductor is usually is usually

metal that allows heat or electricity metal that allows heat or electricity to move through easilyto move through easily

InsulatorInsulator keeps heat or electricity keeps heat or electricity from moving (plastic, styrofoam are from moving (plastic, styrofoam are good insulators)good insulators)

Convection CurrentConvection Current the flow of heat the flow of heat energy. When hot air rises (hot air is energy. When hot air rises (hot air is less dense) it pushes the cold air less dense) it pushes the cold air down creating a circular pattern.down creating a circular pattern.

Radiation EnergyRadiation Energy comes from the sun comes from the sun also called also called Solar EnergySolar Energy

Static ElectricityStatic Electricity happens when happens when positive and negative charges are no positive and negative charges are no longer in balance. (charged particles longer in balance. (charged particles – positive clusters are on the top and – positive clusters are on the top and negative particles are on the bottom.negative particles are on the bottom.

Electric CurrentElectric Current an electric charge an electric charge that flows from one place to another.that flows from one place to another.

Closed CircuitClosed Circuit is a loop with NO is a loop with NO breaks through which electric current breaks through which electric current can flow (Hint: this is the meaning of can flow (Hint: this is the meaning of closed)closed)

Series CircuitSeries Circuit this is a simple circuit this is a simple circuit where there is only 1 path for the where there is only 1 path for the electricity to flow. Example electricity to flow. Example Christmas tree lights..when one goes Christmas tree lights..when one goes out they all go outout they all go out

Parallel CircuitParallel Circuit has 2 or more paths for has 2 or more paths for the electrical current to go. This allows the electrical current to go. This allows the lights to stay lit even if one light the lights to stay lit even if one light goes out. goes out.

MagnetismMagnetism is a force that acts on is a force that acts on moving electric charge and magnetic moving electric charge and magnetic material that are near a magnetmaterial that are near a magnet

Magnetic fieldMagnetic field goes out in all directions goes out in all directions Magnetic PolesMagnetic Poles all magnets have a north all magnets have a north

and south pole (North and south attract) and south pole (North and south attract) (North and North push away – repell)(North and North push away – repell)

ElectromagnetsElectromagnets ElectromagnetsElectromagnets are supercharged are supercharged

magnets. The magnet is charged magnets. The magnet is charged through electricity. See page 387through electricity. See page 387

An electromagnet is a coil of wire An electromagnet is a coil of wire with many loops through which an with many loops through which an electric current (usually from a electric current (usually from a battery) passes through.battery) passes through.

Other forms of ElectricityOther forms of Electricity WindWind Water - also known as Hydroelectric Water - also known as Hydroelectric

Power (Niagra Falls, Hoover Dam)Power (Niagra Falls, Hoover Dam) Sound is a form of energy that Sound is a form of energy that

travels in travels in WAVESWAVES Sound can travel Sound can travel through solids, liquids and gasesthrough solids, liquids and gases

Sound EnergySound Energy

Trough

Crest

WavelengthWavelength

Trough

Trough

CrestCrest

Light EnergyLight Energy Reflection when light rays bounceReflection when light rays bounce Absorption when an object takes in the light Absorption when an object takes in the light

wavewave Transparent materials in which most of the Transparent materials in which most of the

light energy passes through the material light energy passes through the material (glass)(glass)

Translucent let some light rays pass through Translucent let some light rays pass through but forces the rest of the light rays scatterbut forces the rest of the light rays scatter

Opaque no light rays can passOpaque no light rays can pass Refraction bends light for example a prism Refraction bends light for example a prism

and the human eyeand the human eye

Check what you knowCheck what you know What two forms of energy does a What two forms of energy does a

camp fire providecamp fire provide– A. Light and fireA. Light and fire– B. Light and heatB. Light and heat– C. Wood and fireC. Wood and fire– D. Heat and woodD. Heat and wood

Which tool would you use to check Which tool would you use to check the temperature of a light bulb.the temperature of a light bulb.– A. A. beakerbeaker– B.B. ThermometerThermometer– C.C. Graduated CylinderGraduated Cylinder– D.D. Triple Beam BalanceTriple Beam Balance

A television’s electrical energy is A television’s electrical energy is transformed intotransformed into– A.A. light and soundlight and sound– B.B. Magnetic and lightMagnetic and light– C.C. Electrical and solar (sun)Electrical and solar (sun)– D.D. Chemical and soundChemical and sound

An electromagnet transforms energy An electromagnet transforms energy from __________ to ____________from __________ to ____________– A.A. Nuclear to chemicalNuclear to chemical– B.B. Thermal to magneticThermal to magnetic– C.C. Electrical to magneticElectrical to magnetic– D.D. Electrical to mechanicalElectrical to mechanical

A wind mill takes the wind and turns A wind mill takes the wind and turns it into ________________energy.it into ________________energy.

– A.A. solar (sun)solar (sun)– B.B. nuclearnuclear– C.C. magneticmagnetic– D.D. mechanicalmechanical

The energy that special panels that The energy that special panels that are put on a roof to collect are called.are put on a roof to collect are called.

– A.A. solar panelssolar panels– B.B. thermal panelsthermal panels– C.C. magnetic panelsmagnetic panels– D.D. electrical panelselectrical panels

What tool would you use when you What tool would you use when you are testing the energy of hot are testing the energy of hot chocolate.chocolate.

– A.A. beakerbeaker– B.B. metric rulermetric ruler– C.C. thermometerthermometer– D.D. Triple beam balanceTriple beam balance

What material would you use to build What material would you use to build a solar oven.a solar oven.

– A.A. foilfoil– B.B. woodwood– C.C. plastic wrapplastic wrap– D.D. wool blanketwool blanket

What type of energy flows out of a What type of energy flows out of a batterybattery

– A.A. lightlight– B.B. thermalthermal– C.C. electricalelectrical– D.D. magneticmagnetic

A waterwheel provides what type of A waterwheel provides what type of energyenergy

– A.A. windmillswindmills– B.B. solar cellssolar cells– C.C. geothermalgeothermal– D.D. hydroelectrichydroelectric

A solar calculator gets its energy A solar calculator gets its energy from where?from where?

– A.A. heatheat– B.B. soundsound– C.C. sunlightsunlight– D.D. batteriesbatteries