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Definitions LIGHT

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TURN UP THE

HEAT: Thermal

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I’m a Genius

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Do you hear me?

GOT SOUND

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Reflection

a. light being absorbed by an object

b. light bouncing off an object c. light being bent by an object

Answer=B, Light bouncing off an object

RefractionRefraction

A.A. Light being absorbed by an Light being absorbed by an object object

B. Light traveling through spaceB. Light traveling through spaceC. Light being bent by an objectC. Light being bent by an objectD. The absence of lightD. The absence of light

Answer = C, Light bending

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ConductionConductionA.A. Heat transferred through liquid or gas; Heat transferred through liquid or gas;

molecules rising & fallingmolecules rising & falling

B. Heat transferred through the airB. Heat transferred through the airC. Negative heat transferC. Negative heat transfer

D. Heat transferred directly through D. Heat transferred directly through objectsobjectsAnswer = D, Answer = D, Heat is transferred Heat is transferred

directlydirectly through objectsthrough objects

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Convection

Answer = B, Heat transferred through air

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A.A. Negative heat transferNegative heat transfer B.B. Heat transferred through the airHeat transferred through the airC.C. Heat is reflected and refractedHeat is reflected and refractedD.D. Heat transferred directly through objectsHeat transferred directly through objects

The average amount of kinetic energy found in an object is its . . .

Answer = A, temperature

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A.A. TemperatureTemperature B.B. DensityDensityC.C. MassMassD.D. State of MatterState of Matter

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You see lightening before you hear the thunder….WHY?

A. Light travels in a vacuumB. Precipitation slows down the

lightC. Light travels faster that sound

Answer = C, light travels faster than sound

LIGHT 200LIGHT 200An example of refracted light

would be . . .

Answer = B & D (Did you read ALL the choices?)!

A. Viewing your image in a mirror

B. Observing a rainbow during rainfall

C.Seeing your reflection in a tinted window

D. A light source passing through a concave or convex lens

LIGHT 300LIGHT 300A farsighted person sees things far

away much better than near. Which lens would be better for this

person?

Answer = B, convex (light bends inward to magnify the image)

A.A.Concave lensConcave lens

B.B.Convex lensConvex lens

C.C.Sunglass lensSunglass lens

LIGHT 400LIGHT 400A nearsighted person sees things near to them much better than things far away. Which lens would

be better for this person?

Answer = A, concave lens ! Answer = A, concave lens ! (A (A concave lens refracts the light to spread out & lengthen concave lens refracts the light to spread out & lengthen the waves)the waves)

A.A.Concave lensConcave lens

B.B.Convex lensConvex lens

C.C.Sunglass lensSunglass lens

LIGHT 500LIGHT 500

Answer = B, Green reflected Answer = B, Green reflected !!

Why does grass look green when there is light during the day, but it

has no color at night when it there is no light?

The grass appeared green because…A. Green was absorbed; all other colors were reflected

B. Green was reflected; other colors absorbedC. Green is the brightest color in the visible

spectrumD. All other colors refracted in different directions

GOT SOUND? 100GOT SOUND? 100

Sound is caused by . . .Sound is caused by . . .

A. Molecules moving in a vacuumA. Molecules moving in a vacuumB.B. Traveling in a straight lineTraveling in a straight lineC.C. Vibrations of matter moleculesVibrations of matter moleculesD.D. Opening your mouth too bigOpening your mouth too big

Answer = C, Vibrations of matter

GOT SOUND? 200GOT SOUND? 200Why do scientists Why do scientists know that a falling know that a falling tree in a forest makes a soundtree in a forest makes a sound when when

no one is there to hear it?no one is there to hear it?

Answer = C, Vibrations occurred!

A.A.The other trees blocked the sound The other trees blocked the sound waveswaves

B.B.The sound was reflectedThe sound was reflected

C.C.Vibrations occurred when the tree Vibrations occurred when the tree fellfell

D.D.No one was present to hear the No one was present to hear the soundsound

GOT SOUND? 300GOT SOUND? 300

If you wanted to conduct sound waves If you wanted to conduct sound waves the greatest distance, what material the greatest distance, what material

would be the best one to use?would be the best one to use?

Answer = D, Answer = D, (Sound travels the (Sound travels the best through solids)best through solids)

A.A.WoodWood

B.B.MetalMetal

C.C.RockRock

D.D.All of the aboveAll of the above

GOT SOUND? 400GOT SOUND? 400Sound travels through…Sound travels through…

Answer = D, (sound travels faster through solids, then liquids, then gases)

A.A. all substances at the same speedall substances at the same speed

B.B. a vacuum faster than through aira vacuum faster than through air

C.C. water slower than it travels through water slower than it travels through airair

D.D. air slower than it travels through air slower than it travels through waterwater

Daily Daily DoubleDouble

GOT SOUND? 500GOT SOUND? 500

Which TWO CHOICES are true about sound?Which TWO CHOICES are true about sound?

Answer = B and D !

A.A. Sound travels faster than light.Sound travels faster than light.

B.B. Sound does not travel in straight lines; Sound does not travel in straight lines; it can go around and through objects.it can go around and through objects.

C.C. Sound travels faster through water Sound travels faster through water than wood.than wood.

D.D. Sound does not travel through a Sound does not travel through a vacuum.vacuum.

TURN UP THE HEAT 100TURN UP THE HEAT 100

Electrons flowing through a light-bulb Electrons flowing through a light-bulb filament produce?filament produce?

Answer = B, !Answer = B, !

A.A. heat and soundheat and sound

B.B. light and heatlight and heat

C.C. light and movementlight and movement

D.D. movement and heatmovement and heat

TURN UP THE HEAT 200TURN UP THE HEAT 200

Which of the following best Which of the following best describes potential energy?describes potential energy?

Answer = B !

A.A.It cannot change form more than It cannot change form more than onceonce

B.B.It can be found in many formsIt can be found in many forms

C.C. It can be transformed by gravity It can be transformed by gravity alone.alone.

D.D.It includes electric energyIt includes electric energy

TURN UP THE HEAT 300TURN UP THE HEAT 300The law of conservation of energy The law of conservation of energy

states-states-

A.A. that energy can’t be transformed from one that energy can’t be transformed from one form to anotherform to another

B. B. the transformation of energy happens only at the transformation of energy happens only at low temperatureslow temperatures

C. C. that energy can be changed, but it cannot bethat energy can be changed, but it cannot be created or destroyedcreated or destroyed

D. D. that energy can be changed only one time that energy can be changed only one time during one activityduring one activity Answer = C !Answer = C !

TURN UP THE HEAT 400TURN UP THE HEAT 400

Electrical energy is caused by the Electrical energy is caused by the movement of -movement of -

A.A. charged particlescharged particles

B. lightB. light

C. particles of airC. particles of air

D. particles of waterD. particles of water

Answer = A !Answer = A !

TURN UP THE HEAT 500TURN UP THE HEAT 500

Which is an advantage that an Which is an advantage that an electromagnet has over a regular electromagnet has over a regular

magnet?magnet?

Answer = B !Answer = B !

A.A. It attracts more types of materials.It attracts more types of materials.

B. It can be turned on and off.B. It can be turned on and off.

C. Opposites are attracted to each C. Opposites are attracted to each other other

I’m a Genius 100I’m a Genius 100A material to consider to insulate A material to consider to insulate

sound could be foam rubber sound could be foam rubber because . . .because . . .A.A. The molecules are closely packed The molecules are closely packed

together to stop vibrationstogether to stop vibrations

B.B. The color of the foam does not allow The color of the foam does not allow sound to be reflected.sound to be reflected.

C.C. Foam rubber has lots of air spaces Foam rubber has lots of air spaces between the molecules of the material, between the molecules of the material, so there are fewer vibrations.so there are fewer vibrations.

D. None of the above.D. None of the above.Answer = C !Answer = C !

I’m a Genius 200I’m a Genius 200

Blowing through a pipe can Blowing through a pipe can produce a sound because . . .produce a sound because . . .A.A. air is absorbed by the pipe air is absorbed by the pipe

moleculesmoleculesB.B. the pipe cools the air moleculesthe pipe cools the air moleculesC.C. the air in the pipe vibrates against the air in the pipe vibrates against

the pipe moleculesthe pipe moleculesD.D. the smooth pipe speeds up the air the smooth pipe speeds up the air

Answer = CAnswer = C

I’m a Genius 300I’m a Genius 300Thermal energy is transferred Thermal energy is transferred between objects in which 3 between objects in which 3

ways?ways?

A.A. Radiation, conduction, and reflectionRadiation, conduction, and reflection

B. Absorption, convection, and radiationB. Absorption, convection, and radiation

C. Convection, refraction, and insulationC. Convection, refraction, and insulation

D. Conduction, convection, and radiationD. Conduction, convection, and radiation

Answer = D !Answer = D !Daily Daily DoublDoubl

ee

Daily Double!

I’m a Genius 400I’m a Genius 400Which of the following would Which of the following would describe how sound travels describe how sound travels in in

spacespace??A.A. Sound reflects off the Earth.Sound reflects off the Earth.

B. Sound is capable of traveling great B. Sound is capable of traveling great distances.distances.

C.C. Sound cannot travel in space.Sound cannot travel in space.D.D. Sound travels farther when there are Sound travels farther when there are

fewer obstacles to block the vibrationsfewer obstacles to block the vibrations

Answer = C, Answer = C, (sound (sound can can notnot travel in a vacuum) travel in a vacuum)

I’m a Genius 500I’m a Genius 500Which example is Which example is notnot true of thermal true of thermal

energy?energy?A.A. Convection: Making toast in a toasterConvection: Making toast in a toaster

B. Conduction: Cooking in the microwave B. Conduction: Cooking in the microwave ovenoven

C. Convection: Roasting marshmallows C. Convection: Roasting marshmallows near the campfirenear the campfire

D. Radiation: Warming your hands by the D. Radiation: Warming your hands by the fireplacefireplace

Answer = B !Answer = B !