,Chapter 01: Introduction
ws ws
1. Awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentationwsiswsreferredwstowsas
A) awshypothesis. B)w s awslaw. C)w s awstheory.
D)w s nonewsofwsthewsabove.wsAns:w s A Category:w s Easy
Section:w s 1.2
2. Awsconcisewsverbalwsorwsmathematicalwsstatementwsofwsawsrelationshipwsbetweenwsphenomen
awsthatwsiswsalwayswsthewssamewsunderwsthewssamewsconditionswsiswsreferredwstowsas
A) awshypothesis. B)w s awslaw. C)w s awstheory.
D)w s nonewsofwsthewsabove.wsAns:w s B Category:w s Easy
Section:w s 1.2
3. Awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelationswsiswsreferredwstowsas
A) awshypothesis. B)w s awslaw. C)w s awstheory.
D)w s nonewsofwsthewsabove.wsAns:w s C Category:w s Easy
Section:w s 1.2
4. Completewsthewsfollowingwssentence.w s Awshypothesiswsis
A) awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentation.
B) awsstatementwsdescribingwsawsrelationshipwsbetweenwsphenomenawsthatwsiswsalwayswsth
ewssamewsunderwsthewssamewsconditions.
C) awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelations.
D) awsmodelwsusedwstowsvisualizewsthewsinvisi
ble.wsAns:w s A
Category:w s Easy Section:w s 1.2
5. Completewsthewsfollowingwssentence.w s Awsscientificwslawwsis
A) awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentation.
B) awsstatementwsdescribingwsawsrelationshipwsbetweenwsphenomenawsthatwsiswsalwayswsth
ewssamewsunderwsthewssamewsconditions.
C) awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelations.
D) awsmodelwsusedwstowsvisualizewsthewsinvisi
ble.wsAns:w s B
Category:w s Easy Section:w s 1.2
6. Completewsthewsfollowingwssentence.w s Awstheorywsis
A) awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentation.
B) awsstatementwsdescribingwsawsrelationshipwsbetweenwsphenomenawsthatwsiswsalwayswsth
ewssamewsunderwsthewssamewsconditions.
C) awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelations.
D) awsmodelwsusedwstowsvisualizewsthewsinvisi
ble.wsAns:w s C
Category:w s Easy Section:w s 1.2
Pagews1
, Chapterws01:wsIntroducti
on
7. Choosewsthewsresponsewsthatwsincludeswsallwsthewsitemswslistedwsbelowwsthatwsarewspurewssubstances.
i.wsorangewsjuice ii.wssteam iii.wsoceanwswater iv.wsoxygen v.wsvegetablewssoup
A)w s i,wsiii,wsv B)w s ii,wsiv C)w s i,wsiii,wsiv
D)w s ivwsonly E)w s allwsofwsthemwsarewspurewsAns:w s B
Category:w s Easy Section:w s 1.2
8. Whichwsofwsthewsfollowingwsiswsanwsexamplewsofwsawsphysicalwsproperty?
A) corrosivenesswsofwssulfuricwsacid
B) toxicitywsofwscyanide
C) flammabilitywsofwsgasoline
D) neutralizationwsofwsstomachwsacidwswithwsanwsantacid
E) leadwsbecomeswsawsliquidwswhenwsheatedwstows60
1 CwsAns:w s E Category:w s Easy
Section:w s 1.4
9. Whichwsonewsofwsthewsfollowingwsiswsanwsexamplewsofwsawsphysicalwsproperty?
A) dynamitewsexplodes D) icewsfloatswsonwstopwsofwsliquidwswater
B) meatwsrotswsifwsitwsiswsnotwsrefrigerated E) awssilverwsplatterwstarnishes
C) gasolinewsburns
Ans:w s D Category:w s Easy Section:w s 1.4
10. Whichwsonewsofwsthewsfollowingwsrepresentswsawsphysicalwschange?
A) water,wswhenwsheatedwstows100 C,wsformswssteam
B) bleachwsturnswshairwsyellow
C) sugar,wswhenwsheated,wsbecomeswsbrown
D) milkwsturnswssour
E) apples,wswhenwsexposedwstowsair,wsturnwsbr
ownwsAns:w s A
Category:w s Easy Section:w s 1.4
11. Allwsofwsthewsfollowingwsarewspropertieswsofwssodium.w s Whichwsonewsiswsawsphysicalwsp
ropertywsofwssodium?
A) Itwsiswsawssurfacewsturnswsblackwswhenwsfirstwsexposedwstowsair.
B) Itwsiswsawssolidwsatws25 Cwsandwschangeswstowsawsliquidwswhenwsheatedwstows98 C.
C) Whenwsplacedwsinwswaterwsitwssizzleswsandwsawsgaswsiswsformed.
D) Whenwsplacedwsinwscontactwswithwschlorinewsitwsformswsawscompoundwsthatwsmeltswsatws801 C.
E) Sodiumwsiswsneverwsfoundwsaswsthewspurewsmetalwsinws
nature.wsAns:w s B Category:w s Easy
Section:w s 1.4
12. Allwsofwsthewsfollowingwsarewspropertieswsofwstin.w s Whichwsonewsiswsawschemicalwspropertywsofwstin?
A) Tinwscanwsbewshammeredwsintowsawsthinwssheet.
B) Atws–40 Cwsawssheetwsofwstinwscrumbleswstowsawsgraywspowder.
C) Tinwsmeltswsatws231.9 C.
D) Whenwsawsbarwsofwstinwsiswsbent,wsitwsemitswsanwsaudiblews―cry‖.
E) Tinwserodeswswhenwsaddedwstowshydrochloricwsacid,wsandwsawsclearwsgas
wsforms.wsAns:w s E Category:w s Medium
Section:w s 1.4
Pagews2
, Chapterws01:wsIntroducti
on
13. Whichwsonewsofwsthewsfollowingwsrepresentswsawschemicalwschange?
A) boilingwswaterwstowsformwssteam
B) burningwsawspiecewsofwscoal
C) heatingwsleadwsuntilwsitwsmelts
D) mixingwsironwsfilingswsandwssandwsatwsroomwstemperature
E) breakingwsglass
Ans:w s B Category:w s Medium Section:w s 1.4
14. Whichwsofwsthewsfollowingwsdoeswsnotwsrepresentwsawschemicalwschange?
A) awsfreshlywscutwsapplewsturnswsbrown
B) milkwsturnswssourwsonwsstandingwsatwsroomwstemperature
C) whenwscooledwstows0 C,wsliquidwswaterwsbecomeswsice
D) fryingwsanwsegg
E) fermentationwsofwssugarwstowsalcoholw
sAns:w s C Category:w s Easy
Section:w s 1.4
15. ThewsSIwsprefixeswsnanowsandwsdeciwsrepresent,wsrespectively:
A) 10–ws9wsandws10– D) 109wsandws10–
6 6
ws . ws .
– 3
6
B) 10 wsandws10 ws . E) 10–ws9wsandws10–
1
ws .
C) 103wsandws10–ws3.
16. Ans:w s E Category: Easy Section:w s 1.7
ThewsSIwsprefixeswsmilliwsandwsmegawsrepresent,wsrespectively:
A) 106wsandws10–ws6. D) 10–
3 9
ws wsandws10 .
– 3
B) 10 ws wsandws10 .6
E) 10 ws wsandws10–
– 6
3
ws .
17. C) 103wsandws10–ws6.
Ans:w s B Category: Easy Section:w s 1.7
ThewsSIwsprefixeswskilowsandwscentiwsrepresent,wsrespectively:
A) 103wsandws10–ws2. D) 10–
6 2
ws wsandws10 .
–
18. A 6
B)wsnanometer 1
10– ws2andwswscorresponds
10 ws . wsto: E) 10– ws9andws10–
2
3
A) 10 ws wsmeters. D)
ws . 10 ws wsmeters.
– 33
B)
C) 10 wwss wswsmeters.
andws10 –
E) 10–ws12wsmeters.
10–ws6wsmeters.
2
ws .
C)
Ans:ww ss D
A Category:w Easy s Easy Section: w 1.7
s 1.7
19. Awsmicroliterwscorrespondswsto:
A) 10–ws2wsliters. B)w s 10–ws3wsliters. C)w s 10–ws6wsliters.
– 9 – 12
D)w s 10 ws wsliters. E)w s 10 ws wsliters.wsAns:w s C
Category:w s Easy Section:w s 1.7
Pagews3
ws ws
1. Awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentationwsiswsreferredwstowsas
A) awshypothesis. B)w s awslaw. C)w s awstheory.
D)w s nonewsofwsthewsabove.wsAns:w s A Category:w s Easy
Section:w s 1.2
2. Awsconcisewsverbalwsorwsmathematicalwsstatementwsofwsawsrelationshipwsbetweenwsphenomen
awsthatwsiswsalwayswsthewssamewsunderwsthewssamewsconditionswsiswsreferredwstowsas
A) awshypothesis. B)w s awslaw. C)w s awstheory.
D)w s nonewsofwsthewsabove.wsAns:w s B Category:w s Easy
Section:w s 1.2
3. Awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelationswsiswsreferredwstowsas
A) awshypothesis. B)w s awslaw. C)w s awstheory.
D)w s nonewsofwsthewsabove.wsAns:w s C Category:w s Easy
Section:w s 1.2
4. Completewsthewsfollowingwssentence.w s Awshypothesiswsis
A) awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentation.
B) awsstatementwsdescribingwsawsrelationshipwsbetweenwsphenomenawsthatwsiswsalwayswsth
ewssamewsunderwsthewssamewsconditions.
C) awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelations.
D) awsmodelwsusedwstowsvisualizewsthewsinvisi
ble.wsAns:w s A
Category:w s Easy Section:w s 1.2
5. Completewsthewsfollowingwssentence.w s Awsscientificwslawwsis
A) awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentation.
B) awsstatementwsdescribingwsawsrelationshipwsbetweenwsphenomenawsthatwsiswsalwayswsth
ewssamewsunderwsthewssamewsconditions.
C) awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelations.
D) awsmodelwsusedwstowsvisualizewsthewsinvisi
ble.wsAns:w s B
Category:w s Easy Section:w s 1.2
6. Completewsthewsfollowingwssentence.w s Awstheorywsis
A) awstentativewsexplanationwsforwsawssetwsofwsobservationswsthatwscanwsbewstestedwsb
ywsfurtherwsexperimentation.
B) awsstatementwsdescribingwsawsrelationshipwsbetweenwsphenomenawsthatwsiswsalwayswsth
ewssamewsunderwsthewssamewsconditions.
C) awsunifyingwsprinciplewsthatwsexplainswsawsbodywsofwsfactswsandwsrelations.
D) awsmodelwsusedwstowsvisualizewsthewsinvisi
ble.wsAns:w s C
Category:w s Easy Section:w s 1.2
Pagews1
, Chapterws01:wsIntroducti
on
7. Choosewsthewsresponsewsthatwsincludeswsallwsthewsitemswslistedwsbelowwsthatwsarewspurewssubstances.
i.wsorangewsjuice ii.wssteam iii.wsoceanwswater iv.wsoxygen v.wsvegetablewssoup
A)w s i,wsiii,wsv B)w s ii,wsiv C)w s i,wsiii,wsiv
D)w s ivwsonly E)w s allwsofwsthemwsarewspurewsAns:w s B
Category:w s Easy Section:w s 1.2
8. Whichwsofwsthewsfollowingwsiswsanwsexamplewsofwsawsphysicalwsproperty?
A) corrosivenesswsofwssulfuricwsacid
B) toxicitywsofwscyanide
C) flammabilitywsofwsgasoline
D) neutralizationwsofwsstomachwsacidwswithwsanwsantacid
E) leadwsbecomeswsawsliquidwswhenwsheatedwstows60
1 CwsAns:w s E Category:w s Easy
Section:w s 1.4
9. Whichwsonewsofwsthewsfollowingwsiswsanwsexamplewsofwsawsphysicalwsproperty?
A) dynamitewsexplodes D) icewsfloatswsonwstopwsofwsliquidwswater
B) meatwsrotswsifwsitwsiswsnotwsrefrigerated E) awssilverwsplatterwstarnishes
C) gasolinewsburns
Ans:w s D Category:w s Easy Section:w s 1.4
10. Whichwsonewsofwsthewsfollowingwsrepresentswsawsphysicalwschange?
A) water,wswhenwsheatedwstows100 C,wsformswssteam
B) bleachwsturnswshairwsyellow
C) sugar,wswhenwsheated,wsbecomeswsbrown
D) milkwsturnswssour
E) apples,wswhenwsexposedwstowsair,wsturnwsbr
ownwsAns:w s A
Category:w s Easy Section:w s 1.4
11. Allwsofwsthewsfollowingwsarewspropertieswsofwssodium.w s Whichwsonewsiswsawsphysicalwsp
ropertywsofwssodium?
A) Itwsiswsawssurfacewsturnswsblackwswhenwsfirstwsexposedwstowsair.
B) Itwsiswsawssolidwsatws25 Cwsandwschangeswstowsawsliquidwswhenwsheatedwstows98 C.
C) Whenwsplacedwsinwswaterwsitwssizzleswsandwsawsgaswsiswsformed.
D) Whenwsplacedwsinwscontactwswithwschlorinewsitwsformswsawscompoundwsthatwsmeltswsatws801 C.
E) Sodiumwsiswsneverwsfoundwsaswsthewspurewsmetalwsinws
nature.wsAns:w s B Category:w s Easy
Section:w s 1.4
12. Allwsofwsthewsfollowingwsarewspropertieswsofwstin.w s Whichwsonewsiswsawschemicalwspropertywsofwstin?
A) Tinwscanwsbewshammeredwsintowsawsthinwssheet.
B) Atws–40 Cwsawssheetwsofwstinwscrumbleswstowsawsgraywspowder.
C) Tinwsmeltswsatws231.9 C.
D) Whenwsawsbarwsofwstinwsiswsbent,wsitwsemitswsanwsaudiblews―cry‖.
E) Tinwserodeswswhenwsaddedwstowshydrochloricwsacid,wsandwsawsclearwsgas
wsforms.wsAns:w s E Category:w s Medium
Section:w s 1.4
Pagews2
, Chapterws01:wsIntroducti
on
13. Whichwsonewsofwsthewsfollowingwsrepresentswsawschemicalwschange?
A) boilingwswaterwstowsformwssteam
B) burningwsawspiecewsofwscoal
C) heatingwsleadwsuntilwsitwsmelts
D) mixingwsironwsfilingswsandwssandwsatwsroomwstemperature
E) breakingwsglass
Ans:w s B Category:w s Medium Section:w s 1.4
14. Whichwsofwsthewsfollowingwsdoeswsnotwsrepresentwsawschemicalwschange?
A) awsfreshlywscutwsapplewsturnswsbrown
B) milkwsturnswssourwsonwsstandingwsatwsroomwstemperature
C) whenwscooledwstows0 C,wsliquidwswaterwsbecomeswsice
D) fryingwsanwsegg
E) fermentationwsofwssugarwstowsalcoholw
sAns:w s C Category:w s Easy
Section:w s 1.4
15. ThewsSIwsprefixeswsnanowsandwsdeciwsrepresent,wsrespectively:
A) 10–ws9wsandws10– D) 109wsandws10–
6 6
ws . ws .
– 3
6
B) 10 wsandws10 ws . E) 10–ws9wsandws10–
1
ws .
C) 103wsandws10–ws3.
16. Ans:w s E Category: Easy Section:w s 1.7
ThewsSIwsprefixeswsmilliwsandwsmegawsrepresent,wsrespectively:
A) 106wsandws10–ws6. D) 10–
3 9
ws wsandws10 .
– 3
B) 10 ws wsandws10 .6
E) 10 ws wsandws10–
– 6
3
ws .
17. C) 103wsandws10–ws6.
Ans:w s B Category: Easy Section:w s 1.7
ThewsSIwsprefixeswskilowsandwscentiwsrepresent,wsrespectively:
A) 103wsandws10–ws2. D) 10–
6 2
ws wsandws10 .
–
18. A 6
B)wsnanometer 1
10– ws2andwswscorresponds
10 ws . wsto: E) 10– ws9andws10–
2
3
A) 10 ws wsmeters. D)
ws . 10 ws wsmeters.
– 33
B)
C) 10 wwss wswsmeters.
andws10 –
E) 10–ws12wsmeters.
10–ws6wsmeters.
2
ws .
C)
Ans:ww ss D
A Category:w Easy s Easy Section: w 1.7
s 1.7
19. Awsmicroliterwscorrespondswsto:
A) 10–ws2wsliters. B)w s 10–ws3wsliters. C)w s 10–ws6wsliters.
– 9 – 12
D)w s 10 ws wsliters. E)w s 10 ws wsliters.wsAns:w s C
Category:w s Easy Section:w s 1.7
Pagews3
