Energy Unit Group Review

8/18/2019 Energy Unit Group Review

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ENERGY, WAVES ANDLIGHT

Group Review


2/25

Rules for Group Review

You must work with your group.

Only one person may answer for your group.

You may not talk during other groups’ turns or

your group will lose points.If you repeat an incorrect answer, your group

will lose points.

You may not use anything during GroupReview except your rains.

If voice levels cannot e controlled, we willstop playing and instead have a pop !ui".


3/25

#onus Round$$$$

%t the end of each scoring round, there will e anopportunity for &Garage #all'.

(or this, one memer from each team will e given thechance to try to shoot the Garage #all into the smallgarage can.

If the team memer makes the shot, the team earns thatround’s points as extra points.

In the case of excessive cheering, teams can e penali"ed.In the case of excessive insulting, teams can e penali"ed.


4/25

)nergy, )nergy *ransformations and +eat

% toy root can walk and talk and runs on atteries. hattype of energy is stored in the atteries-

%. chemical

#. kinetic. nuclear

/. *hermal

A. chemical


5/25


% guitar string virates to produce sound. hichtype of energy is converted to sound energy-

%. chemical energy #. light energy

. kinetic energy

/. thermal energy C. kinetic energy


6/25


On a cold winter day, /elia puts logs into a fireplace.*hen she strikes a match and sets the logs on fire. %sthe fire urns, which two forms of energy are released-

%. light and thermal

#. chemical and light

. thermal ad electrical

/. electrical and chemical

A. light an thermal


7/25


% flashlight runs on a attery. If the light is left on the attery runs out and the flashlight stops working. hich statement est descries what ha! ha""ene

to the attery’s energy- %. It has een destroyed.

#. It has changed to potential energy.

. It has een stored as kinetic energy.

/. It has changed to thermal energy and light energy.

D. It ha! change t# thermal energy an lightenergy.


8/25


hen a skateoarder reaches the top of a half0piperamp, what type of energy is at its maximum-

%. 1echanical energy

#. 2inetic energy

. 3otential energy

/. hemical energy

C. $#tential energy


9/25


% solid rock is sitting on the ground. hichstatement est descries the particles thatmake up the rock-

%. not moving at all

#. virating, ut not changing place

. constantly sliding over each other

/. always moving from place to place

%. &i'rating, '(t n#t changing "lace


10/25


larissa warms some hot chocolate in a microwaveoven. +ow are the particles that make up the hotchocolate different as the temperature increases-

%. *hey move slower.#. *hey have less energy.

. *hey move farther apart.

/. *hey are arranged in a pattern.C. They m#&e )arther a"art.


11/25


hich description defines heat-

%. total thermal energy of an o4ect or sustance

#. change in the temperature of a sustance degreeselsius

. energy transferred etween o4ects at differtemperatures

/. average kinetic energy of the particles that makeup a sustance

C. energy tran!)erre 'et*een #'+ect! at

i))er tem"erat(re!


12/25


%s energy in the form of heat is added to an ice cue, it egins to melt. hat causes melting-

%. +eat causes the molecules in the ice cue to expand and

forces them apart.#. +eat removes thermal energy from the ice cue and

causes it to ecome li!uid water.. *he additional energy causes the onds etween

hydrogen and oxygen in the ice cue to reak./. *he transfer of thermal energy to the ice cue causes its

molecules to move faster.D. The tran!)er #) thermal energy t# the ice

c('e ca(!e! it! m#lec(le! t# m#&e )a!ter.


13/25


illa holds a pan over a campfire and feels warmthfrom the fire. 1ost of the warmth illa feels comesfrom which of the following processes-

%. conduction

#. convection

. insulation/. Radiation

D. Raiati#n


14/25

aves and 5ight

6unlight is composed of energy that is visile tohumans and energy that is not visile to humans. hich statement descries which visile energy fromthe 6un is different from the non0visile energy-

%. It travels at a different speed.

#. It travels a different distance.

. It has different wavelengths./. It has different amplitudes.

C. It ha! i))erent *a&elength!.


15/25

aves and 5ight

*he energy generated y the sun travels to )arth aselectromagnetic waves. #ecause the radiation from the suntravels to )arth in varying wavelengths, scientists considerthem to e a spectrum. hich statement descries an

electromagnetic wave with a long wavelength-

%. It has a high fre!uency and low energy.

#. It has a high fre!uency and high energy.

. It has a low fre!uency and can travel through a vacuum./. It has a low fre!uency and needs a medium to travel

through.

C. It ha! a l#* )re(ency an can tra&el thr#(gh a

&ac((m.


16/25

aves and 5ight

hich material is translucent-

%. pure air . frosted glass

#. clear plastic /. construction paper

C. )r#!te gla!!


17/25

aves and 5ight

hen you listen to the radio, watch *7, or cook food in amicrowave, you are using a device that makes use of man0madeelectromagnetic waves. hich statement aout electromagnetic waves is false-

%. )lectromagnetic waves travel at the speed of light in a vacuum.

#. )lectromagnetic waves need a medium to travel through.

. /ifferent wavelengths of light are interpreted y our eyes as

different colors./. *he transfer of energy as electromagnetic waves is called

electromagnetic radiation.

%. Electr#magnetic *a&e! nee a mei(m t# tra&el

thr#(gh.


18/25

aves and 5ight

%n earth!uake wave travels from its sourceunderground to the ocean floor. hat will happen tothe wave when it meets the water in the ocean-

%. It will stop.

#. It will move faster.

. It will move slower.

/. It will continue to move at the same speed.

C. It *ill m#&e !l#*er.


19/25

aves and 5ight

6onia tapped one end of a long wooden tale. 6an4ay and1arc listened to the sounds. 6an4ay pressed his ear to thetale and heard the taps that seemed louder than the taps thatmarc heard. hy-

%. 5ess energy reached 6an4ay’s ear than 1arc’s ear.

#. 3articles of wood are farther apart than particles of air.

. 6ound travels through air and wood at different speeds./. *he taps only made the tale virate, they did not make

the air virate.

C. S#(n tra&el! thr#(gh air an *## at i))erent

!"ee!.


20/25

aves and 5ight

)mma measured the maximum displacement of a wavethat she made y moving the end of a string up anddown. hat property of a wave was she measuring-

%. period . amplitude

#. fre!uency /. wavelength

C. am"lit(e


21/25

aves and 5ight

)lectromagnetic energy travels through space as waves. *he electromagnetic spectrum includes allelectromagnetic waves, arranged according to

fre!uency and wavelength. hich of these is anexample of an electromagnetic waves-

%. radio wave . ocean wave

#. sound wave /. gravitational pull

A. rai# *a&e


22/25

aves and 5ight

+ai looks around his classroom at different o4ects. hich o4ect reflects almost all of the light that strikesit-

%. white poster oard . right overhead light

#. clear window glass /. lack construction paper

A. *hite "#!ter '#ar


23/25

aves and 5ight

%shley puts a straw into a glass of water. 6he noticesthat when she looks through the glass and the waterfrom the side, the straw appears to e roken. hichterm est explains why the straw looks like it is roken-

%. asorption . scattering

#. refraction /. transmission

%. re)racti#n


24/25

(inal 8uestion$$$$

*alk to your group to decide howmany points you want to wager.

If you get the (inal 8uestioncorrect, you will add the wageredpoints to your score.

If you don’t, you will lose thepoints.


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(inal 8uestion

hat three waves have shorter wavelengths andhigher fre!uencies than visile light-

9999.

-ltra&i#let Light, /Ray! an Gamma Ray!

Energy Unit Group Review

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