,Chapter01:Introduction
s s
1. A sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation ssis ssreferred ssto ssas
A) a sshypothesis. B) a sslaw. C) a sstheory.
D) none ssof ssthe ssabove.Ans: A Category: Easy
ssSection: ss1.2
2. A ssconcise ssverbal ssor ssmathematical ssstatement ssof ssa ssrelationship ssbetween ssphenomena
ssthat ssisalways ssthe sssame ssunder ssthe sssame ssconditions ssis ssreferred ssto ssas
A) a sshypothesis. B) a sslaw. C) a sstheory.
D) none ssof ssthe ssabove.Ans: B Category: Easy
ssSection: ss1.2
3. A ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations ssis ssreferred ssto ssas
A) a sshypothesis. B) a sslaw. C) a sstheory.
D) none ssof ssthe ssabove.Ans: C Category: Easy
ssSection: ss1.2
4. Complete ssthe ssfollowing sssentence. A sshypothesis ssis
A) a sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation.
B) a ssstatement ssdescribing ssa ssrelationship ssbetween ssphenomena ssthat ssis ssalways
ssthe sssameunder ssthe sssame ssconditions.
C) a ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations.
D) a ssmodel ssused ssto ssvisualize ssthe
ssinvisible.Ans: A Category:
Easy Section: 1.2
5. Complete ssthe ssfollowing sssentence. A ssscientific sslaw ssis
A) a sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation.
B) a ssstatement ssdescribing ssa ssrelationship ssbetween ssphenomena ssthat ssis ssalways
ssthe sssameunder ssthe sssame ssconditions.
C) a ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations.
D) a ssmodel ssused ssto ssvisualize ssthe
ssinvisible.Ans: B Category:
Easy Section: 1.2
6. Complete ssthe ssfollowing sssentence. A sstheory ssis
A) a sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation.
B) a ssstatement ssdescribing ssa ssrelationship ssbetween ssphenomena ssthat ssis ssalways
ssthe sssameunder ssthe sssame ssconditions.
C) a ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations.
D) a ssmodel ssused ssto ssvisualize ssthe
ssinvisible.Ans: C Category:
ssEasy Section: 1.2
Page ss1
, Chapter ss01:
Introduction
7. Choose ssthe ssresponse ssthat ssincludes ssall ssthe ssitems sslisted ssbelow ssthat ssare sspure sssubstances.
i. ssorange ssjuice ii. sssteam iii. ssocean sswater iv. ssoxygen v. ssvegetable sssoup
A) i, ssiii, ssv B) ii, ssiv C) i, ssiii, ssiv ssD) iv ssonly E) ssall
ssof ssthem ssare sspureAns: B Category: sEasy Section: ss1.2
8. Which ssof ssthe ssfollowing ssis ssan ssexample ssof ssa ssphysical ssproperty?
A) corrosiveness ssof sssulfuric ssacid
B) toxicity ssof sscyanide
C) flammability ssof ssgasoline
D) neutralization ssof ssstomach ssacid sswith ssan ssantacid
E) lead ssbecomes ssa ssliquid sswhen ssheated ssto ss601
C ssAns: E ssCategory: Easy
s s Section: ss1.4
9. Which ssone ssof ssthe ssfollowing ssis ssan ssexample ssof ssa ssphysical ssproperty?
A) dynamite ssexplodes D) ice ssfloats sson sstop ssof ssliquid sswater
B) meat ssrots ssif ssit ssis ssnot ssrefrigerated E) asssilver ssplatter sstarnishes
C) gasoline ssburns
Ans: D s s Category: Easy s s Section: 1.4
10. Which ssone ssof ssthe ssfollowing ssrepresents ssa ssphysical sschange?
A) water, sswhen ssheated ssto ss100 C, ssforms sssteam
B) bleach ssturns sshair ssyellow
C) sugar, sswhen ssheated, ssbecomes ssbrown
D) milk ssturns sssour
E) apples, sswhen ssexposed ssto ssair,
ssturn ssbrownAns: A
Category:
Easy Section: 1.4
11. All ssof ssthe ssfollowing ssare ssproperties ssof sssodium. ssWhich ssone ssis ssa ssphysical
ssproperty ssofsodium?
A) It ssis ssa sssurface ssturns ssblack sswhen ssfirst ssexposed ssto ssair.
B) It ssis ssa sssolid ssat ss25 C ssand sschanges ssto ssa ssliquid sswhen ssheated ssto ss98 C.
C) When ssplaced ssin sswater ssit sssizzles ssand ssa ssgas ssis ssformed.
D) When ssplaced ssin sscontact sswith sschlorine s s it ssforms ssa sscompound ssthat ssmelts ssat ss801 C.
E) Sodium ssis ssnever ssfound ssas ssthe sspure ssmetal
ssin ssnature.Ans: B
Category: Easy
Section: ss1.4
12. All ssof ssthe ssfollowing ssare ssproperties ssof sstin. Which ssone ssis ssa sschemical ssproperty ssof sstin?
A) Tin sscan ssbe sshammered ssinto ssa ssthin sssheet.
B) At ss–40 C ssa sssheet ssof sstin sscrumbles ssto ssa ssgray sspowder.
C) Tin ssmelts ssat ss231.9 C.
D) When ssa ssbar ssof sstin ssis ssbent, ssit ssemits ssan ssaudible ss―cry‖.
E) Tin sserodes sswhen ssadded ssto sshydrochloric ssacid, ssand ssa ssclear ssgas
ssforms.Ans: E Category: Medium Section: ss1.4
Page ss2
, Chapter ss01:
Introduction
13. Which ssone ssof ssthe ssfollowing ssrepresents ssa sschemical sschange?
A) boiling sswater ssto ssform sssteam
B) burning ssa sspiece ssof sscoal
C) heating sslead ssuntil ssit ssmelts
D) mixing ssiron ssfilings ssand sssand ssat ssroom sstemperature
E) breaking ssglass
Ans: B s s Category: Medium s s Section: ss1.4
14. Which ssof ssthe ssfollowing ssdoes ssnot ssrepresent ssa sschemical sschange?
A) a ssfreshly sscut ssapple ssturns ssbrown
B) milk ssturns sssour sson ssstanding ssat ssroom sstemperature
C) when sscooled ssto ss0 C, ssliquid sswater ssbecomes ssice
D) frying ssan ssegg
E) fermentation ssof sssugar ssto
ssalcohol ssAns: C
ssCategory: Easy
s s Section:
1.4
15. 1T5 .h e ssSI ssprefixes ssnano ssand ssdeci ssrepresent, ssrespectively:
A) 10–9 ssand ss10–6. D) 109 s s and s s 10–6.
B) 106 s s and s s 10–3. E) 10–9 ssand ss10–1.
3 –3
C) 10 s s and s s 10 .
Ans: E s s Category: s s Easy Section:
1.7
16. 16.
The ssSI ssprefixes ssmilli ssand ssmega ssrepresent, ssrespectively:
A) 106 s s and s s 10–6. D) 10–3 s s and s s 109.
–3
B) 10 s s and s s 10 . 6
E) 10–6 ssand ss10–3.
C) 103 s s and s s 10–6.
17. The ssSI ssprefixes sskilo ssand sscenti ssrepresent, ssrespectively:
A) 103 ssand s s 10–2. D) 10–6 s s and s s 102.
–1
6
B) 10 ssand s s 10 . E) 102 s s and s s 10–3.
C) 10–3 ssand ss10–2.
Ans: A s s Category: Easy s s Section: 1.7
18. A ssnanometer sscorresponds ssto:
A) 10–2 s s meters. D) 10–9 s s meters.
B) 10–3 s s meters. E) 10–12 ssmeters.
–6
C) 10 s s meters.
Ans: D s s Category: Easy s s Section: 1.7
19. A ssmicroliter sscorresponds ssto:
A) 10–2 s s liters. B) 10–3 s s liters.ssC) 10–6 s s liters. ssD) 10–9 s s liters. ssE) ss10– ss12
liters.Ans: C s s s s Category: Easy Section: ss1.7
Page ss3
s s
1. A sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation ssis ssreferred ssto ssas
A) a sshypothesis. B) a sslaw. C) a sstheory.
D) none ssof ssthe ssabove.Ans: A Category: Easy
ssSection: ss1.2
2. A ssconcise ssverbal ssor ssmathematical ssstatement ssof ssa ssrelationship ssbetween ssphenomena
ssthat ssisalways ssthe sssame ssunder ssthe sssame ssconditions ssis ssreferred ssto ssas
A) a sshypothesis. B) a sslaw. C) a sstheory.
D) none ssof ssthe ssabove.Ans: B Category: Easy
ssSection: ss1.2
3. A ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations ssis ssreferred ssto ssas
A) a sshypothesis. B) a sslaw. C) a sstheory.
D) none ssof ssthe ssabove.Ans: C Category: Easy
ssSection: ss1.2
4. Complete ssthe ssfollowing sssentence. A sshypothesis ssis
A) a sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation.
B) a ssstatement ssdescribing ssa ssrelationship ssbetween ssphenomena ssthat ssis ssalways
ssthe sssameunder ssthe sssame ssconditions.
C) a ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations.
D) a ssmodel ssused ssto ssvisualize ssthe
ssinvisible.Ans: A Category:
Easy Section: 1.2
5. Complete ssthe ssfollowing sssentence. A ssscientific sslaw ssis
A) a sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation.
B) a ssstatement ssdescribing ssa ssrelationship ssbetween ssphenomena ssthat ssis ssalways
ssthe sssameunder ssthe sssame ssconditions.
C) a ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations.
D) a ssmodel ssused ssto ssvisualize ssthe
ssinvisible.Ans: B Category:
Easy Section: 1.2
6. Complete ssthe ssfollowing sssentence. A sstheory ssis
A) a sstentative ssexplanation ssfor ssa ssset ssof ssobservations ssthat sscan ssbe sstested
ssby ssfurtherexperimentation.
B) a ssstatement ssdescribing ssa ssrelationship ssbetween ssphenomena ssthat ssis ssalways
ssthe sssameunder ssthe sssame ssconditions.
C) a ssunifying ssprinciple ssthat ssexplains ssa ssbody ssof ssfacts ssand ssrelations.
D) a ssmodel ssused ssto ssvisualize ssthe
ssinvisible.Ans: C Category:
ssEasy Section: 1.2
Page ss1
, Chapter ss01:
Introduction
7. Choose ssthe ssresponse ssthat ssincludes ssall ssthe ssitems sslisted ssbelow ssthat ssare sspure sssubstances.
i. ssorange ssjuice ii. sssteam iii. ssocean sswater iv. ssoxygen v. ssvegetable sssoup
A) i, ssiii, ssv B) ii, ssiv C) i, ssiii, ssiv ssD) iv ssonly E) ssall
ssof ssthem ssare sspureAns: B Category: sEasy Section: ss1.2
8. Which ssof ssthe ssfollowing ssis ssan ssexample ssof ssa ssphysical ssproperty?
A) corrosiveness ssof sssulfuric ssacid
B) toxicity ssof sscyanide
C) flammability ssof ssgasoline
D) neutralization ssof ssstomach ssacid sswith ssan ssantacid
E) lead ssbecomes ssa ssliquid sswhen ssheated ssto ss601
C ssAns: E ssCategory: Easy
s s Section: ss1.4
9. Which ssone ssof ssthe ssfollowing ssis ssan ssexample ssof ssa ssphysical ssproperty?
A) dynamite ssexplodes D) ice ssfloats sson sstop ssof ssliquid sswater
B) meat ssrots ssif ssit ssis ssnot ssrefrigerated E) asssilver ssplatter sstarnishes
C) gasoline ssburns
Ans: D s s Category: Easy s s Section: 1.4
10. Which ssone ssof ssthe ssfollowing ssrepresents ssa ssphysical sschange?
A) water, sswhen ssheated ssto ss100 C, ssforms sssteam
B) bleach ssturns sshair ssyellow
C) sugar, sswhen ssheated, ssbecomes ssbrown
D) milk ssturns sssour
E) apples, sswhen ssexposed ssto ssair,
ssturn ssbrownAns: A
Category:
Easy Section: 1.4
11. All ssof ssthe ssfollowing ssare ssproperties ssof sssodium. ssWhich ssone ssis ssa ssphysical
ssproperty ssofsodium?
A) It ssis ssa sssurface ssturns ssblack sswhen ssfirst ssexposed ssto ssair.
B) It ssis ssa sssolid ssat ss25 C ssand sschanges ssto ssa ssliquid sswhen ssheated ssto ss98 C.
C) When ssplaced ssin sswater ssit sssizzles ssand ssa ssgas ssis ssformed.
D) When ssplaced ssin sscontact sswith sschlorine s s it ssforms ssa sscompound ssthat ssmelts ssat ss801 C.
E) Sodium ssis ssnever ssfound ssas ssthe sspure ssmetal
ssin ssnature.Ans: B
Category: Easy
Section: ss1.4
12. All ssof ssthe ssfollowing ssare ssproperties ssof sstin. Which ssone ssis ssa sschemical ssproperty ssof sstin?
A) Tin sscan ssbe sshammered ssinto ssa ssthin sssheet.
B) At ss–40 C ssa sssheet ssof sstin sscrumbles ssto ssa ssgray sspowder.
C) Tin ssmelts ssat ss231.9 C.
D) When ssa ssbar ssof sstin ssis ssbent, ssit ssemits ssan ssaudible ss―cry‖.
E) Tin sserodes sswhen ssadded ssto sshydrochloric ssacid, ssand ssa ssclear ssgas
ssforms.Ans: E Category: Medium Section: ss1.4
Page ss2
, Chapter ss01:
Introduction
13. Which ssone ssof ssthe ssfollowing ssrepresents ssa sschemical sschange?
A) boiling sswater ssto ssform sssteam
B) burning ssa sspiece ssof sscoal
C) heating sslead ssuntil ssit ssmelts
D) mixing ssiron ssfilings ssand sssand ssat ssroom sstemperature
E) breaking ssglass
Ans: B s s Category: Medium s s Section: ss1.4
14. Which ssof ssthe ssfollowing ssdoes ssnot ssrepresent ssa sschemical sschange?
A) a ssfreshly sscut ssapple ssturns ssbrown
B) milk ssturns sssour sson ssstanding ssat ssroom sstemperature
C) when sscooled ssto ss0 C, ssliquid sswater ssbecomes ssice
D) frying ssan ssegg
E) fermentation ssof sssugar ssto
ssalcohol ssAns: C
ssCategory: Easy
s s Section:
1.4
15. 1T5 .h e ssSI ssprefixes ssnano ssand ssdeci ssrepresent, ssrespectively:
A) 10–9 ssand ss10–6. D) 109 s s and s s 10–6.
B) 106 s s and s s 10–3. E) 10–9 ssand ss10–1.
3 –3
C) 10 s s and s s 10 .
Ans: E s s Category: s s Easy Section:
1.7
16. 16.
The ssSI ssprefixes ssmilli ssand ssmega ssrepresent, ssrespectively:
A) 106 s s and s s 10–6. D) 10–3 s s and s s 109.
–3
B) 10 s s and s s 10 . 6
E) 10–6 ssand ss10–3.
C) 103 s s and s s 10–6.
17. The ssSI ssprefixes sskilo ssand sscenti ssrepresent, ssrespectively:
A) 103 ssand s s 10–2. D) 10–6 s s and s s 102.
–1
6
B) 10 ssand s s 10 . E) 102 s s and s s 10–3.
C) 10–3 ssand ss10–2.
Ans: A s s Category: Easy s s Section: 1.7
18. A ssnanometer sscorresponds ssto:
A) 10–2 s s meters. D) 10–9 s s meters.
B) 10–3 s s meters. E) 10–12 ssmeters.
–6
C) 10 s s meters.
Ans: D s s Category: Easy s s Section: 1.7
19. A ssmicroliter sscorresponds ssto:
A) 10–2 s s liters. B) 10–3 s s liters.ssC) 10–6 s s liters. ssD) 10–9 s s liters. ssE) ss10– ss12
liters.Ans: C s s s s Category: Easy Section: ss1.7
Page ss3
