,Chapter 01: Introduction
bj bj
1. Abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentationbjisbjreferredbjtobjas
A) abjhypothesis. B)b j abjlaw. C)b j abjtheory.
D)b j nonebjofbjthebjabove.bjAns:b j A Category:b j Easy
Section:b j 1.2
2. Abjconcisebjverbalbjorbjmathematicalbjstatementbjofbjabjrelationshipbjbetweenbjphenomenabjtha
tbjisbjalwaysbjthebjsamebjunderbjthebjsamebjconditionsbjisbjreferredbjtobjas
A) abjhypothesis. B)b j abjlaw. C)b j abjtheory.
D)b j nonebjofbjthebjabove.bjAns:b j B Category:b j Easy
Section:b j 1.2
3. Abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelationsbjisbjreferredbjtobjas
A) abjhypothesis. B)b j abjlaw. C)b j abjtheory.
D)b j nonebjofbjthebjabove.bjAns:b j C Category:b j Easy
Section:b j 1.2
4. Completebjthebjfollowingbjsentence.b j Abjhypothesisbjis
A) abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentation.
B) abjstatementbjdescribingbjabjrelationshipbjbetweenbjphenomenabjthatbjisbjalwaysbjthebjsa
mebjunderbjthebjsamebjconditions.
C) abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelations.
D) abjmodelbjusedbjtobjvisualizebjthebjinvisibl
e.bjAns:b j A
Category:b j Easy Section:b j 1.2
5. Completebjthebjfollowingbjsentence.b j Abjscientificbjlawbjis
A) abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentation.
B) abjstatementbjdescribingbjabjrelationshipbjbetweenbjphenomenabjthatbjisbjalwaysbjthebjsa
mebjunderbjthebjsamebjconditions.
C) abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelations.
D) abjmodelbjusedbjtobjvisualizebjthebjinvisibl
e.bjAns:b j B
Category:b j Easy Section:b j 1.2
6. Completebjthebjfollowingbjsentence.b j Abjtheorybjis
A) abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentation.
B) abjstatementbjdescribingbjabjrelationshipbjbetweenbjphenomenabjthatbjisbjalwaysbjthebjsa
mebjunderbjthebjsamebjconditions.
C) abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelations.
D) abjmodelbjusedbjtobjvisualizebjthebjinvisibl
e.bjAns:b j C
Category:b j Easy Section:b j 1.2
Pagebj1
, Chapterbj01:bjIntroductio
n
7. Choosebjthebjresponsebjthatbjincludesbjallbjthebjitemsbjlistedbjbelowbjthatbjarebjpurebjsubstances.
i.bjorangebjjuice ii.bjsteam iii.bjoceanbjwater iv.bjoxygen v.bjvegetablebjsoup
A)b j i,bjiii,bjv B)b j ii,bjiv C)b j i,bjiii,bjiv D)b j ivbjonly
E)b j allbjofbjthembjarebjpurebjAns:b j B Category:b j Easy
Section:b j 1.2
8. Whichbjofbjthebjfollowingbjisbjanbjexamplebjofbjabjphysicalbjproperty?
A) corrosivenessbjofbjsulfuricbjacid
B) toxicitybjofbjcyanide
C) flammabilitybjofbjgasoline
D) neutralizationbjofbjstomachbjacidbjwithbjanbjantacid
E) leadbjbecomesbjabjliquidbjwhenbjheatedbjtobj601
CbjAns:b j ECategory:b j Easy Section:b j 1.4
9. Whichbjonebjofbjthebjfollowingbjisbjanbjexamplebjofbjabjphysicalbjproperty?
A) dynamitebjexplodes D) icebjfloatsbjonbjtopbjofbjliquidbjwater
B) meatbjrotsbjifbjitbjisbjnotbjrefrigerated E) abjsilverbjplatterbjtarnishes
C) gasolinebjburns
Ans:b j D Category:b j Easy Section:b j 1.4
10. Whichbjonebjofbjthebjfollowingbjrepresentsbjabjphysicalbjchange?
A) water,bjwhenbjheatedbjtobj100 C,bjformsbjsteam
B) bleachbjturnsbjhairbjyellow
C) sugar,bjwhenbjheated,bjbecomesbjbrown
D) milkbjturnsbjsour
E) apples,bjwhenbjexposedbjtobjair,bjturnbjbrow
nbjAns:b j A Category:b j Easy Section:b j 1.4
11. Allbjofbjthebjfollowingbjarebjpropertiesbjofbjsodium.b j Whichbjonebjisbjabjphysicalbjpropert
ybjofbjsodium?
A) Itbjisbjabjsurfacebjturnsbjblackbjwhenbjfirstbjexposedbjtobjair.
B) Itbjisbjabjsolidbjatbj25 Cbjandbjchangesbjtobjabjliquidbjwhenbjheatedbjtobj98 C.
C) Whenbjplacedbjinbjwaterbjitbjsizzlesbjandbjabjgasbjisbjformed.
D) Whenbjplacedbjinbjcontactbjwithbjchlorinebjitbjformsbjabjcompoundbjthatbjmeltsbjatbj801 C.
E) Sodiumbjisbjneverbjfoundbjasbjthebjpurebjmetalbjinbjnatu
re.bjAns:b j B Category:b j Easy
Section:b j 1.4
12. Allbjofbjthebjfollowingbjarebjpropertiesbjofbjtin.b j Whichbjonebjisbjabjchemicalbjpropertybjofbjtin?
A) Tinbjcanbjbebjhammeredbjintobjabjthinbjsheet.
B) Atbj–40 Cbjabjsheetbjofbjtinbjcrumblesbjtobjabjgraybjpowder.
C) Tinbjmeltsbjatbj231.9 C.
D) Whenbjabjbarbjofbjtinbjisbjbent,bjitbjemitsbjanbjaudiblebj“cry”.
E) Tinbjerodesbjwhenbjaddedbjtobjhydrochloricbjacid,bjandbjabjclearbjgasbjfor
ms.bjAns:b j E Category:b j Medium Section:b j 1.4
Pagebj2
, Chapterbj01:bjIntroductio
n
13. Whichbjonebjofbjthebjfollowingbjrepresentsbjabjchemicalbjchange?
A) boilingbjwaterbjtobjformbjsteam
B) burningbjabjpiecebjofbjcoal
C) heatingbjleadbjuntilbjitbjmelts
D) mixingbjironbjfilingsbjandbjsandbjatbjroombjtemperature
E) breakingbjglass
Ans:b j B Category:b j Medium Section:b j 1.4
14. Whichbjofbjthebjfollowingbjdoesbjnotbjrepresentbjabjchemicalbjchange?
A) abjfreshlybjcutbjapplebjturnsbjbrown
B) milkbjturnsbjsourbjonbjstandingbjatbjroombjtemperature
C) whenbjcooledbjtobj0 C,bjliquidbjwaterbjbecomesbjice
D) fryingbjanbjegg
E) fermentationbjofbjsugarbjtobjalcoholbjA
ns:b j C Category:b j Easy
Section:b j 1.4
15. ThebjSIbjprefixesbjnanobjandbjdecibjrepresent,bjrespectively:
A) 10–bj9bjandbj10–bj6. D) 109bjandbj10–bj6.
–3
6
B) 10 bjandbj10 bj . E) 10–bj9bjandbj10–
1
bj .
3 –3
C) 10 bjandbj10 bj .
Ans:b j E Category: Easy Section:b j 1.7
16.
ThebjSIbjprefixesbjmillibjandbjmegabjrepresent,bjrespectively:
A) 106bjandbj10–bj6. D) 10–bj3bjandbj109.
B) 10–bj3bjandbj106. E) 10–bj6bjandbj10–
3
bj .
C) 103bjandbj10–bj6.
17. Ans:b j B Category: Easy Section:b j 1.7
ThebjSIbjprefixesbjkilobjandbjcentibjrepresent,bjrespectively:
A) 103bjandbj10–bj2. D) 10–bj6bjandbj102.
B) 106bjandbj10–bj1. E) 102bjandbj10–bj3.
–3 –2
C) 10 bj bjandbj10 bj .
Ans:
18. A b j A Category: Easy Section: 1.7
bjnanometerbjcorrespondsbjto:
–2
A) 10 bj bjmeters. D) 10–bj9bjmeters.
B) 10–bj3bjmeters. E) 10–bj12bjmeters.
–6
C) 10 bj bjmeters.
Ans:b j D Category:b j Easy Section:b j 1.7
19. Abjmicroliterbjcorrespondsbjto:
A) 10–bj2bjliters. B)b j 10–bj3bjliters. C)b j 10–bj6bjliters. D)b j 10–bj9bjliters. E)b j 10–
12
bj bjliters.bjAns:b j C Category:b j Easy Section:b j 1.7
Pagebj3
bj bj
1. Abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentationbjisbjreferredbjtobjas
A) abjhypothesis. B)b j abjlaw. C)b j abjtheory.
D)b j nonebjofbjthebjabove.bjAns:b j A Category:b j Easy
Section:b j 1.2
2. Abjconcisebjverbalbjorbjmathematicalbjstatementbjofbjabjrelationshipbjbetweenbjphenomenabjtha
tbjisbjalwaysbjthebjsamebjunderbjthebjsamebjconditionsbjisbjreferredbjtobjas
A) abjhypothesis. B)b j abjlaw. C)b j abjtheory.
D)b j nonebjofbjthebjabove.bjAns:b j B Category:b j Easy
Section:b j 1.2
3. Abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelationsbjisbjreferredbjtobjas
A) abjhypothesis. B)b j abjlaw. C)b j abjtheory.
D)b j nonebjofbjthebjabove.bjAns:b j C Category:b j Easy
Section:b j 1.2
4. Completebjthebjfollowingbjsentence.b j Abjhypothesisbjis
A) abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentation.
B) abjstatementbjdescribingbjabjrelationshipbjbetweenbjphenomenabjthatbjisbjalwaysbjthebjsa
mebjunderbjthebjsamebjconditions.
C) abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelations.
D) abjmodelbjusedbjtobjvisualizebjthebjinvisibl
e.bjAns:b j A
Category:b j Easy Section:b j 1.2
5. Completebjthebjfollowingbjsentence.b j Abjscientificbjlawbjis
A) abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentation.
B) abjstatementbjdescribingbjabjrelationshipbjbetweenbjphenomenabjthatbjisbjalwaysbjthebjsa
mebjunderbjthebjsamebjconditions.
C) abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelations.
D) abjmodelbjusedbjtobjvisualizebjthebjinvisibl
e.bjAns:b j B
Category:b j Easy Section:b j 1.2
6. Completebjthebjfollowingbjsentence.b j Abjtheorybjis
A) abjtentativebjexplanationbjforbjabjsetbjofbjobservationsbjthatbjcanbjbebjtestedbjbybjfur
therbjexperimentation.
B) abjstatementbjdescribingbjabjrelationshipbjbetweenbjphenomenabjthatbjisbjalwaysbjthebjsa
mebjunderbjthebjsamebjconditions.
C) abjunifyingbjprinciplebjthatbjexplainsbjabjbodybjofbjfactsbjandbjrelations.
D) abjmodelbjusedbjtobjvisualizebjthebjinvisibl
e.bjAns:b j C
Category:b j Easy Section:b j 1.2
Pagebj1
, Chapterbj01:bjIntroductio
n
7. Choosebjthebjresponsebjthatbjincludesbjallbjthebjitemsbjlistedbjbelowbjthatbjarebjpurebjsubstances.
i.bjorangebjjuice ii.bjsteam iii.bjoceanbjwater iv.bjoxygen v.bjvegetablebjsoup
A)b j i,bjiii,bjv B)b j ii,bjiv C)b j i,bjiii,bjiv D)b j ivbjonly
E)b j allbjofbjthembjarebjpurebjAns:b j B Category:b j Easy
Section:b j 1.2
8. Whichbjofbjthebjfollowingbjisbjanbjexamplebjofbjabjphysicalbjproperty?
A) corrosivenessbjofbjsulfuricbjacid
B) toxicitybjofbjcyanide
C) flammabilitybjofbjgasoline
D) neutralizationbjofbjstomachbjacidbjwithbjanbjantacid
E) leadbjbecomesbjabjliquidbjwhenbjheatedbjtobj601
CbjAns:b j ECategory:b j Easy Section:b j 1.4
9. Whichbjonebjofbjthebjfollowingbjisbjanbjexamplebjofbjabjphysicalbjproperty?
A) dynamitebjexplodes D) icebjfloatsbjonbjtopbjofbjliquidbjwater
B) meatbjrotsbjifbjitbjisbjnotbjrefrigerated E) abjsilverbjplatterbjtarnishes
C) gasolinebjburns
Ans:b j D Category:b j Easy Section:b j 1.4
10. Whichbjonebjofbjthebjfollowingbjrepresentsbjabjphysicalbjchange?
A) water,bjwhenbjheatedbjtobj100 C,bjformsbjsteam
B) bleachbjturnsbjhairbjyellow
C) sugar,bjwhenbjheated,bjbecomesbjbrown
D) milkbjturnsbjsour
E) apples,bjwhenbjexposedbjtobjair,bjturnbjbrow
nbjAns:b j A Category:b j Easy Section:b j 1.4
11. Allbjofbjthebjfollowingbjarebjpropertiesbjofbjsodium.b j Whichbjonebjisbjabjphysicalbjpropert
ybjofbjsodium?
A) Itbjisbjabjsurfacebjturnsbjblackbjwhenbjfirstbjexposedbjtobjair.
B) Itbjisbjabjsolidbjatbj25 Cbjandbjchangesbjtobjabjliquidbjwhenbjheatedbjtobj98 C.
C) Whenbjplacedbjinbjwaterbjitbjsizzlesbjandbjabjgasbjisbjformed.
D) Whenbjplacedbjinbjcontactbjwithbjchlorinebjitbjformsbjabjcompoundbjthatbjmeltsbjatbj801 C.
E) Sodiumbjisbjneverbjfoundbjasbjthebjpurebjmetalbjinbjnatu
re.bjAns:b j B Category:b j Easy
Section:b j 1.4
12. Allbjofbjthebjfollowingbjarebjpropertiesbjofbjtin.b j Whichbjonebjisbjabjchemicalbjpropertybjofbjtin?
A) Tinbjcanbjbebjhammeredbjintobjabjthinbjsheet.
B) Atbj–40 Cbjabjsheetbjofbjtinbjcrumblesbjtobjabjgraybjpowder.
C) Tinbjmeltsbjatbj231.9 C.
D) Whenbjabjbarbjofbjtinbjisbjbent,bjitbjemitsbjanbjaudiblebj“cry”.
E) Tinbjerodesbjwhenbjaddedbjtobjhydrochloricbjacid,bjandbjabjclearbjgasbjfor
ms.bjAns:b j E Category:b j Medium Section:b j 1.4
Pagebj2
, Chapterbj01:bjIntroductio
n
13. Whichbjonebjofbjthebjfollowingbjrepresentsbjabjchemicalbjchange?
A) boilingbjwaterbjtobjformbjsteam
B) burningbjabjpiecebjofbjcoal
C) heatingbjleadbjuntilbjitbjmelts
D) mixingbjironbjfilingsbjandbjsandbjatbjroombjtemperature
E) breakingbjglass
Ans:b j B Category:b j Medium Section:b j 1.4
14. Whichbjofbjthebjfollowingbjdoesbjnotbjrepresentbjabjchemicalbjchange?
A) abjfreshlybjcutbjapplebjturnsbjbrown
B) milkbjturnsbjsourbjonbjstandingbjatbjroombjtemperature
C) whenbjcooledbjtobj0 C,bjliquidbjwaterbjbecomesbjice
D) fryingbjanbjegg
E) fermentationbjofbjsugarbjtobjalcoholbjA
ns:b j C Category:b j Easy
Section:b j 1.4
15. ThebjSIbjprefixesbjnanobjandbjdecibjrepresent,bjrespectively:
A) 10–bj9bjandbj10–bj6. D) 109bjandbj10–bj6.
–3
6
B) 10 bjandbj10 bj . E) 10–bj9bjandbj10–
1
bj .
3 –3
C) 10 bjandbj10 bj .
Ans:b j E Category: Easy Section:b j 1.7
16.
ThebjSIbjprefixesbjmillibjandbjmegabjrepresent,bjrespectively:
A) 106bjandbj10–bj6. D) 10–bj3bjandbj109.
B) 10–bj3bjandbj106. E) 10–bj6bjandbj10–
3
bj .
C) 103bjandbj10–bj6.
17. Ans:b j B Category: Easy Section:b j 1.7
ThebjSIbjprefixesbjkilobjandbjcentibjrepresent,bjrespectively:
A) 103bjandbj10–bj2. D) 10–bj6bjandbj102.
B) 106bjandbj10–bj1. E) 102bjandbj10–bj3.
–3 –2
C) 10 bj bjandbj10 bj .
Ans:
18. A b j A Category: Easy Section: 1.7
bjnanometerbjcorrespondsbjto:
–2
A) 10 bj bjmeters. D) 10–bj9bjmeters.
B) 10–bj3bjmeters. E) 10–bj12bjmeters.
–6
C) 10 bj bjmeters.
Ans:b j D Category:b j Easy Section:b j 1.7
19. Abjmicroliterbjcorrespondsbjto:
A) 10–bj2bjliters. B)b j 10–bj3bjliters. C)b j 10–bj6bjliters. D)b j 10–bj9bjliters. E)b j 10–
12
bj bjliters.bjAns:b j C Category:b j Easy Section:b j 1.7
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