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Scott
Scott, MIT Graduate
Category: Homework
Satisfied Customers: 3040
Experience:  MIT Graduate (Math, Programming, Science, and Music)
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1. ISOTOPES ARE ATOMS THAT HAVE THE SAME NUMBER OF NEUTRONS

Customer Question

1.      ISOTOPES ARE ATOMS THAT HAVE THE SAME NUMBER OF NEUTRONS BUT A DIFFERENT NUMBER OF PROTONS.



TRUE OR FALSE



THE NUMBER OF PROTONS AN ATOM HAS ITS NUCLEUS IS CALLED ITS ATOMIC NUMBER


TRUE OR FALSE



WHEN THE NUMBER OF ELECTRONS DOES NOT EQUAL THE NUMBER OF PROTONS IN AN ATOM. THE ATOM HAS A CHARGE AND IS CALLED ION


TRUE OR FALSE



MATTER IS COMMONLY FOUND IN THREE STATES. THESE STATES ARE SOLID, LIQUID AND GAS


TRUE OR FALSE



THERE IS FOURTH STATE, CALLED THE PLASMA STATE, THAT IS NOT SO COMMON IN OUR EVERYDAY WORLD, YET TI IS THE PREDOMIANT STATE OF MATTER IN THE UNIVERSE.


TRUE OR FALSE



AT THE CENTER OF EVERY ATOM IS A MASS-FILLED REGION CALLED THE


NUCLEON
NEUTRON
NUCLEUS
ION


ATOMS OF THIS ELEMENT COMPRISE OVER 90 PERCENT OF THE KNOWN ATOMS IN THE UNIVERSE


HYDROGEN
OXYGEN
NITROGEN
CARBON


NEARLY ALL THE ELEMENTS THAT EXIST TODAY WERE CREATED


AT THE SAME TIME THE UNIVERSE WAS CREATED
IN THE DEEP INTERIOR OF STARS
IN THE CENTER OF THE EARTH
BY COLLISONS IN DEEP SPACE


ATOMS ARE


SMALLER THAN THE WAVELENGTHS OF VISIBLE LIGHT
SMALL, BUT THEY CAN BE SEEN WITH A MICROSCOPE
SMALL, AND CAN ONLY BE SEEN THROUGHT ONE MICROSCOPE LOOKING THROUGH ANOTHER MICROSCOPE
SO SMALL THAT THEY CAN NEVER BE SEEN, EVEN WITH AN ELECTON MICROSCOPE


ATOMS COMBINE TO FORM


NUCLEON
ELEMENTS
MOLECULES
ISOTOPES


WHEN A NUCLEON IS ELECTRICALLY NEUTRAL, IT IS CALLED


A NEUTRON
A PROTON
AN ELECTON
AN ISOTOPE


SOMETIMES AN ATOM AHS MORE OR FEWER ELECTRONS THAN IT HAS PROTONS. SUCH AN ATOM IS CALLED


MOLECULE
COMPOUND
ION
ISOTOPE


ELEMENTS THAT ARE SIDE BY SIDE IN THE PERIODIC TABLE HAVE ONE MORE OR FEWER


PROTON
NUCLEON
ELECTRON SHELL
ISOTOPE


MOST OF THE MATTER OF THE UNIVERSE IS IN WHICH STATE


LIQUID
SOLID
GAS
PLASMA




15. THE ELASTIC LIMIT OF AN OBJECT IS REACHED WHEN THE OBJECT DOES NOT RETURN TO ITS ORGINIAL SHAPE AFTER BEING STRETCHED.



TRUE OR FALSE



BECAUSE CELLS OBTAIN NOURISHMENT TRHOUGH THEIR SURFACES, THERE IS AN UPPER LIMIT ON THE SIZE OF A LIVING CELL.


TRUE OR FASLE



BECAUSE OF THE CONSEQUENCES OF SCALING, SCINECE FICTION MONSTER LIKE KING KONG CANNOT EXIST.


TRUE OR FALSE



LEAD IS DENSER THAN ANYTHING ELSE WE KNOW OF, INCLUDING GOLD AND URANIUM


TRUE OR FALSE



WHEN THE WEIGHT OF N OBJECT ON THE END OF A HANGING SPRING ISDOUBLED, THE SPRING STRETCHES TWICE AS MUCH.


TRUE OR FALSE



WHICH HAS THE HIGHER DENSITY, ONE BUSHEL OF APPLES OR TEN BUSHELS OF APPLES
1 BUSHEL
10 BUSHEL
BOTH HAVE THE SAME DENSITY


WHICH HAS THE HIGHER DENSITY, A LOAF OF BREAD JUST AFTER IT COMES OUT OF THE OVEN OR THE SAME LOAF THAT HAS BEEN SQUEZZED INTO A SMALL VOLUME
THE FRESH, UNSQUEEZED LOAF
THE SQUEEZED LOAF
THEY BOTH HAVE THE SAME DENSITY


WHAT IS THE DENISTY OF A ROCK THAT HAS A MASS OF 500G AND A VOLUME OF 200 CUBIC CENTIMETER
10000 G/CUBIC CM
5000 G/CUBIC CM
700 G/CUBIC CM
2.5 G/CUBIC CM


WHICH OF THE FOLLOWING IS MADE OF AN INELASTIC MATERIAL
TENNIS BALL
PIECE OF COOKIE DOUGH
SPRING
BOW


24 WHEN A 2-N WEIGHT IS HUNG FROM A SPRING THE SPRING STRETCHES .04 M. HOW    MUCH WOULD THE SPRING STRETCH IF A 6-N WEIGHT WERE HUNG FROM IT

A.     .24M

B.     .12M

C.     .08M

D.     .04M



25 WHEN USED HORIZONTALLY IN CONTSTRUCTION AN I-BEAM IS NEARLY AS STRONG AS A SOLID BAR BECAUSE

A.     THE I-BEAM WEIGHS LESS

B.     OBJECTS ARE PLACED ON THE TOP OF THE BEAM

C.     AN ‘I’ IS A REALLY STORNG SHAPE

D.     THE STRESS IS PREDOMIANTLY IN THE TOP AND THE BOTTOM PARTS



26 IF ALL THE DIMENSIONS OF A HOUSE WERE DOUBLED ITS VOLUME WOULD GO UP BY A FACTOR OF

A.     16

B.     8

C.     4

D.     3



27 IF ALL THE DIMENSIONS OF A HOUSE WERE DOULBED, ITS FLOOR AREA WOULD GO UP BY A FACTOR OF

A.     16

B.     8

C.     4

D.     3



28 WHICH HAS MORE SKIN PER BODY WEIGHT AN ELEPHANT OR MOUSE

A.     ELEPHANT

B.     MOUSE

C.     NEITHER, THEY BOTH HAVE THE SAME AMOUNT OF SKIN PER BODY WEIGHT



29 WHICH WILL COOL A GLASS OF WATER FASTER, ICE CUBES OR THE SAME AMOUNT OF CRUSHED ICE

A.     THE CUBES

B.     CRUSED ICES

C.     NEITHER, THEY WILL BOTH COOL THE WATER AT THE SAME RATE



30 PRESSURE AT THE BOTTOM OF A LAKE DEPENDS ON WEIGHT DENSITY OF THE LAKE WATER AND ON THE VOLUME OF THE LAKE

            TRUE OR FALSE

31 THE UPWARD FORCE THAT A LIQUID EXERTS ON A SUBMERGED OR PARTLY SUBMERGED OBJECT IS CALLED THE BUOYNAT FORCE

            TRUE OR FALSE



32 THE WEIGHT OF TH FLUID A FLOATING OBJECT DISPLACES IS EQUAL TO THE WEIGHT OF THE OBJECT

            TRUE OR FALSE



33 THE BUOYANT FORCE ON A SUBMERGED ROCK DEPENDS UPON THE WEIGHT OF THE ROCK

            TRUE OR FALSE



34 BECAUSE CONCRETE IS VERY DENSE, A SHIP MADE OF CONTRETE WILL NOT FLOAT

            TRUE OR FALSE



35 PRESSURE IN A LIQUID DEPENDS ON THE

A.     DENSITY OF LIQUID

B.     VOLUME OF LIQUID

C.     DEPTH OF MEASURING POINT

D.     BOTH A AND C



36 THE MAIN REASON A DAM IS BUILT WIDER AT THE BOTTOM THAN AT THE TOP IS

A.     TO ANCHOR THE DAM BETTER

B.     TO HOLD UP THE DAM BETTER

C.     TO MAKE THE DAM LOOK BETTER

D.     TO WITHSTAND THE GREATER PRESSURE AT THE BOTTOM



37 WHERE IS THE PRESSURE GREATER ONE METER BENEATH THE SURFACE OF LKE MICHIGAN OR ONE METER BENEATH THE SURFACE OF A SWIMMING POND

A.     LAKE MICHIGAN

B.     IN THE POND

C.     THE PRESSURE IS APPROXIAMTELY THE SAME IN BOTH PLACES.



38 ARCHIMEDES PRINCIPLE SAYS THAT AN OBJECT IS BUOED UP BY A FORCE THAT IS EQUAL TO

A.     WEIGHT OF THE FLUID DISPLACED

B.     VOLUME OF FLUID DISPLACED

C.     MASS OF FLUID DISPLACED

D.     MASS OF THE OBJECT



39 ONE LITER OF WATER WEIGHS ABOUT 10N. SUPPOSE A 2-LITER CONTAINER IS FILLED WITH 266N OF MERCURY AND THEN LOWERED INTO A CONTAINER OF WATER. ASSUMING THE CONTAINER IS COMPLETELY SUBMERGED, WHAT IS THE BUOYANT FORCE ACTING ON IT.

A.     266N

B.     133N

C.     26.66N

D.     20N



40 IF AN OBJECT HAS A DENSITY EQUAL TO THE DENSITY OF WATER, IT WILL

A.     FLOAT

B.     SINK

C.     NEITHER FLOAT NOR SINK, BUT STAY ANYWHERE IT IS PUT



41 THE REASON AN IRON SHIP DOESN’T SINK IS THAT

A.     IRON IS LESS DENSE THAN WATER

B.     IRON IS NTEH SHAPE OF SHIP’S HULL DISPLACES MORE WATER THAN IF THE SAME AMOUNT OF IRON WERE IN THE FORM OF A SOLID BLOCK

C.     THE SHIP IS SO BIG

D.     NONSENSE, AN IRON SHIP WILL ALWAYS SINK



42 WHEN FIRST PUT IN WATER, A PLASTIC TOY BOAT WILL SINK UNITL

A.     IT DISPLACES A VOLUME OF WATER EQUAL TO ITS OWN VOLUME

B.     IT DSIPLACES A WEIGHT OF WATER EQUAL TO TIS OWN WEIGHT

C.     THE WATER DENSITY EQUALS THE DENSITY OF THE BOAT

D.     THE BUOYANT FORCE EQUALS THE VOLUME OF THE BOAT



43 PASCAL’S PRINCIPLE SAYS THEAT CHANGES IN PRESSURE AT ANY POINT IN AN ENCLOSED FLUID

A.     ARE TRANSMITTED TO ALL POINTS IN THE FLUID

B.     QUICKLY DIMINISH FROM POINT TO POINT IN THE FLUID

C.     REAMIN ONLY AT THE POINT

D.     ARE TRANSMITTED ONLY TO POINTS CLOSE TO THE POINT AT WHICH PRESSURE IS APPLIED



44 AFTER A BOAT HAS SAILED FROM FRESH WATER TO SALT WATER, THE BOAT WILL FLOAT

A.     LOWER IN THE WATER

B.     HIGHTER IN THE WATER

C.     AT THE SAME LEVEL IN THE WATER



45 A FLUID CAN BE EITHER A GAS OR LIQUID

            TRUE OR FALSE



46 AN INSTRUMENT THAT USES A SMALL METAL BOX CONTAINING A PARTIAL VACUUM FOR MEASURING ATMOSPHERIC PRESUURE IS CALLED AN ANEROID BAAROMETER

            TRUE OR FALSE



47 SUPPOSE GAS MOLECULES INSIDE A BOX ARE HELD AT THE SAME TERPERATURE. AS THE VOLUME OF THE BOX INCREASES THE PRESSURE INCREASES ALSO

            TRUE OR FALSE



48 BERNOULLI’S PRINCIPLE STATES THAT PRESSURE IN A FLUID DECREASES AS THE SPEED OF THE FLUID DECREASES

            TRUE OR FALSE



49 NINETY-NINE PRECENT OF THE EARTH’S ATOMSPHERE IS BELOW AN ALTITUD OF 30KM

            TRUE OR FALSE



50 THE MAIN DIFFERENCES B/W GASES AND LIQUIDS IS THAT IN GASES,

A.     MOLECULES ARE MOVING FASTER

B.     FORCES B/W MOLECULES ARE GREATER

C.     DISTANCES B/W MOLECULES ARE GREATER

D.     MOLECULES COLLIDE MORE FREQUENTLY



51 WATER IN TUBE COULD BE USED TO MAKE A BAROMETER, BUT

A.     WATER WOULD RUN OUT OF THE TUBE

B.     NO GLASS IS STRONG ENOUGH TO HOLD A WATER BAROMETER

C.     THE TUBE WOULD HAVE TO BE VERY, VERY LONG

D.     PRESSURE AT THE TUBE’S BOTTOM WOULD BREAK THE TUBE



52 THE REASON WATER CAN BE PUMPED OUT OF WELL USING AN OLD FASHIONED FARM TYPE PUMP IS THAT

A.     THE WATER LEVEL IS VERY CLOSE TO THE PUMP

B.     THE PUMP SCOOPS UP THE WATER AND LIFTS IT TO THE TOP

C.     THE PUMP SUCKS THE WATER UP FROM THE WELL

D.     WATER IS PUSHED TO THE SURFACE BY THE ATMOSHPERE



53 BOYLE’S LAW RELATES

A.     PRESSURE AND TEMPERATURE

B.     PRESSURE AND VOLUME

C.     PRESSURE AND MASS

D.     TEMPERATURE AND VOLUME



54 IF YOU SQUEEZE A BALLOON TO ONE HALF ITS ORIGINAL SIZE THE PRESSURE WITHIN THE BALLOON

A.     INCREASES BY A FACTOR OF 4

B.     INCREASES BY A FACTOR OF 2

C.     STAYS THE SAME

D.     DECREASES BY A FACTOR OF 2



55 WHICH EXPERIENCES THE GREATER BUOYANT FORCE, A BALLOON FILLED WITH HELIUM OR A BALLOON OF THE SAME SIZE FILLED WITH AIR

A.     THE HELIUM BALLON

B.     THE AIR BALLOON

C.     NEITHER, BOTH EXPERIENCE THE SAME BUOYANT FORCE



56 WHICH WEIGHS MORE, A BALLOON FILLED WITH HELIM OR ABALLOON OF THE SAME SIZE FILLED WITH AIR

A.     THE HELIUM BALLOON

B.     THE AIR BALLOON

C.     NEITHER, BOTH HAVE THE SAME WEIGHT



57 WHEN A RIVER NARROWS, A WATER IN THE RIVER FLOWS

A.     FASTER

B.     MORE SLOWLY

C.     AT THE SAME RATE



58 BERNOULLI’S PRINCIPLE STATES THAT

A.     INTERNAL FLUID PRESSURE DECREASES AS FLUID SPEED INCREASES

B.     INTERNAL FLUID PRESSURE INCREASES AS FLUID SPEED INCREASES

C.     AN OBJECT IN AIR BUOYED BY A FORCE EQUAL TO THE WEIGHT OF THE AIR DISPLACED

D.     AS THE VOLUME OF A GAS INCREASES AT CONSTANT TEMPERATURE, THE PRESSURE DECREASS



59 THE REASON A HOWER CURTAIN WILL PULL TO THEINSIDE OF A BATHUB DURING A SHOWER IS THAT

A.     THERE IS MORE AIR INSIDE THE CURTAIN

B.     THERE IS LESS AIR INSID THE CURTAIN

C.     THE PRESSURE IS HIGHER INSIDE THE CURTAIN

D.     THE PRESSURE IS LOWER INSIDE THE CURTAIN
Submitted: 5 years ago.
Category: Homework
Expert:  Lani S. replied 5 years ago.

Hi,

 

Do you still need these questions answered? Thanks.

Customer: replied 5 years ago.

yes

 

Expert:  Lani S. replied 5 years ago.

Hi,

 

Sorry I was waiting for your reply but I missed it and I just noted it now. Please advise when do you need the answers. Thanks.

 

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