Correct Answers
Describe bthe bresult bof badding ba blarge bpositive bnumber band ba bsmaller bnegative
bnumber. b- bcorrect banswers✔✔The bresult bis ba bsmaller bpositive bnumber, band bis
bthe bsame bas bignoring bthe bsigns band bsubtracting bthe bsmaller bnumber bfrom bthe
blarger.
How bdo byou bconvert ba bfraction binto ba bdecimal? b- bcorrect banswers✔✔Divide bthe
btop bnumber b(Numerator) bby bthe bbottom bnumber b(denominator).
What bis bthe bkey bstep bthat bmust bbe bperformed bin border bto badd bor bsubtract bunlike
bfractions? b- bcorrect banswers✔✔You bmust bfind bthe blowest b(Least) bcommon
bdenominator.
How bdo byou bdivide bone bfraction bby banother? b- bcorrect banswers✔✔You binvert bthe
bdivisor band bmultiply bthe bnumerators btogether band bthe bdenominators btogether.
How bcan byou bconvert ba bdecimal binto ba bpercent? b- bcorrect banswers✔✔(1) bMultiply
bthe bdecimal bby b100 band badd bthe bpercent bsign.
(2) bMove bthe bdecimal bpoint btwo bplaces bto bthe bright band badd bthe
percent bsign.
How bdo byou bconvert ba bfraction binto ba bpercent? b- bcorrect banswers✔✔Convert bit bto
ba bdecimal, bmove bthe bdecimal bpoint btwo bplaces bto bthe
right band badd bthe bpercent bsign
How bdo byou bchange ba bdecimal binto bthe bnearest bequivalent bfraction? b- bcorrect
banswers✔✔Multiply bthe bdecimal bby bthe bdesired bdenominator. bThe bresult
becomes bthe bnumerator bin bthe btraction.
What bare btwo bdifferent bways bthat ba bratio bmay bbe bexpressed? b- bcorrect
banswers✔✔(1) bAs ba bfraction.
(2) bBy bplacing ba bcolon b(s) bbetween bthe btwo bnumbers.
(3) bBy busing bthe bword b'10" bbetween bthe btwo bnumbers
,What bis ba bproportion? b- bcorrect banswers✔✔—
A bstatement bof bequality bbetween btwo bor bmore bratios.
What bis bmeant bby bthe broot bof ba bnumber? b- bcorrect banswers✔✔A broot bis btwo bor
bmore bequal bsmaller bnumbers bthat, bwhen bmultiplied
together, bequal bthe bspecified bnumber.
How bdo byou bfind bthe bsquare bof ba bnumber? bGive ban bexample. b- bcorrect
banswers✔✔Multiply bthe bnumber bby bitself bExamples: b
4 bX b4 b=16, b7 bX b7 b=49
What bis ba bcommon bmethod bof bmaking bcomputations binvolving bvery blarge bor bvery
bsmall bnumbers bmore bmanageable? b- bcorrect banswers✔✔Convert bthe bnumbers
binto bscientific bnotation bby busing bpowers bof b10.
How bis b100.000 bexpressed bas ba bpower bof b10? b- bcorrect banswers✔✔10^5 b(10 bto
bthe b5'" bpower).
What bformula bis bused bto bfind bthe barea bof ba
rectangle band bof ba btriangle? b- bcorrect banswers✔✔For ba brectangle,
A b= bL bX bW.
For ba btriangle, b
A b= b1/2(B bX bH).
Define bPi b(π) b- bcorrect banswers✔✔Pi bis ba bconstant bthat bexpresses bthe
brelationship bbetween bthe
gigozngterence bof ba bcircle band bits bdiameter band bis bapproximately bequal bto
Describe ba btrapezoid. b- bcorrect banswers✔✔A btrapezoid bis ba bclosed, bfour-sided
bfigure bhaving btwo bparallel bsides
and btwo bsides bthat bare bnot bparallel.
What bis bthe bformula bfor bcomputing bthe barea bof ba bcircle? b- bcorrect
banswers✔✔A=πr^2
Define bmatter. b- bcorrect banswers✔✔Any bsubstance bthat boccupies bspace band bhas
bmass.
Matter bmay bexist bin bwhat bthree bstates? b- bcorrect banswers✔✔Solid, bliquid, bgas,
b(Plasma).
Define bkinetic benergy. b- bcorrect banswers✔✔Kinetic benergy bis bthe benergy bof
bmotion,
Work bis bthe bproduct bof bwhat btwo bfactors? b- bcorrect banswers✔✔Force band bthe
bdistance bmoved,
, What bare bthe bparts bof ba blever? b- bcorrect banswers✔✔A brigid bbar band ba bpivot
bpoint bcalled bthe bfulcrum.
A bwheelbarrow bis ban bexample bof bwhat bclass bof blever? b- bcorrect banswers✔✔A
bsecond-class blever.
Are ball bthree bstates bof bmatter baffected bby bthermal bexpansion band bif bso, bwhich
bstate bis baffected bmost? b- bcorrect banswers✔✔All bthree bstates bare baffected, bwith
bgases bbeing baffected bthe bmost.
What bis ba bBritish bThermal bUnit? b- bcorrect banswers✔✔The bamount bof bheat benergy
brequired bto bchange bthe btemperature bof b1 bpound bof bwater b1 bdegree bFahrenheit.
Name bthe bthree bmethods bof bheat btransfer? b- bcorrect banswers✔✔Conduction,
bconvection band bradiation.
What bterm bdefines bthe btemperature bat bwhich ball bmolecular bmotion bceases? b-
bcorrect banswers✔✔Absolute bzero.
Can bliquids bbe bcompressed? b- bcorrect banswers✔✔No, bliquids bare bgenerally
bconsidered bincompressihle.
What bare bthe bcustomary bunits bused bto bexpress bhydraulic bor bpneumatic bpressure
bin bthe bUnited bStates? b- bcorrect banswers✔✔Pounds bper bsquare binch b(PSI)
Describe bhow bpressure bis btransmitted bwhen ba bforce bis bapplied bto ba bconfined
bliquid. b- bcorrect banswers✔✔Pressure bis btransmitted bequally bin ball bdirections,
What bformula bexpresses bthe brelationship bbetween bforce, bpressure band barea? b-
bcorrect banswers✔✔Force bequals barea btimes bpressure
What bis bthe bapproximate bspeed bof bsound bat bsea blevel bon ba bstandard bday? b-
bcorrect banswers✔✔661 bKnots bor b340 bmeters bper bsecond.
What bis bthe batmospheric bpressure bat bsea blevel bon ba bstandard bday? b- bcorrect
banswers✔✔29.92 binches bof bMercury bor b10132 bmillibars
On ba bstandard bday bat bsea blevel, bwhat bis bthe bvalue bfor btemperature? b- bcorrect
banswers✔✔-
59°F bor b15°C.
What bare bthe bfactors bthat bdetermine bdensity baltitude? b- bcorrect
banswers✔✔Temperature band batmospheric bpressure.