PHYSICS 265 Exam 1 with Questions and
Correct Answers 2025
What ,is ,the ,Physics ,Primer?
a. ,A ,tutorial ,of ,the ,most ,important ,physics ,concepts ,covered ,in ,introductory ,physics
,courses.
b. ,A ,detailed ,explanation ,of ,all ,of ,the ,mathematics ,you ,will ,use ,in ,your ,introductory
,physics ,course.
c. ,A ,list ,of ,the ,most ,important ,formulas ,used ,in ,introductory ,physics ,courses.
d. ,A ,set ,of ,mathematics ,topics ,that ,are ,relevant ,to ,introductory ,physics ,courses. ,-
,CORRECT ,ANSWER-d. ,A ,set ,of ,mathematics ,topics ,that ,are ,relevant ,to ,introductory
,physics ,courses.
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,mass ,of ,the ,Earth ,is ,written ,in
,scientific ,notation: ,5,970,000,000,000,000,000,000,000 ,kg ,- ,CORRECT ,ANSWER-m,
,n ,= ,5.97, ,24
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,average ,distance ,from ,the ,Sun
,to ,the ,Earth ,is ,written ,in ,scientific ,notation: ,150,000,000,000 ,mm. ,- ,CORRECT
,ANSWER-m,n ,= ,1.5, ,11
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,charge ,of ,a ,proton ,is ,written ,in
,scientific ,notation: ,0.000000000000000000160 ,C. ,- ,CORRECT ,ANSWER-m,n ,= ,1.60,
,-19
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,average ,magnetic ,field ,strength
,of ,the ,Earth ,is ,written ,in ,scientific ,notation: ,0.0000451 ,T ,- ,CORRECT ,ANSWER-m, ,n
,= ,4.51, ,-5
The ,mass ,of ,a ,high ,speed ,train ,is ,4.5×105 ,kg, ,and ,it ,is ,traveling ,forward ,at ,a ,velocity
,of ,8.3×101 ,m/s. ,Given ,that ,momentum ,equals ,mass ,times ,velocity, ,determine ,the
,values ,of ,mm ,and ,n ,when ,the ,momentum ,of ,the ,train ,(in ,kg⋅m/s) ,is ,written ,in
,scientific ,notation. ,- ,CORRECT ,ANSWER-m,n ,= ,3.7,7
Given ,that ,average ,speed ,is ,distance ,traveled ,divided ,by ,time, ,determine ,the ,values
,of ,m ,and ,n ,when ,the ,time ,it ,takes ,a ,beam ,of ,light ,to ,get ,from ,the ,Sun ,to ,the ,Earth
, ,(in ,s) ,is ,written ,in ,scientific ,notation. ,Note: ,the ,speed ,of ,light ,is ,approximately
,3.0×108 ,m/s. ,- ,CORRECT ,ANSWER-m,n ,= ,5.0, ,2
In ,an ,experiment ,you ,are ,performing, ,your ,lab ,partner ,has ,measured ,the ,distance ,a
,cart ,has ,traveled: ,28.4inch. ,You ,need ,the ,distance ,in ,units ,of ,centimeter ,and ,you
,know ,the ,unit ,equality ,1inch=2.54centimeter. ,By ,which ,conversion ,factor ,will ,you
,multiply ,28.4inch ,in ,order ,to ,perform ,the ,unit ,conversion?
a. ,2.54 ,centimeter/ ,1 ,inch
b. ,2.54 ,inch ,/ ,1 ,centimeter
c. ,1 ,inch ,/ ,2.54 ,centimeter ,
d. ,1 ,centimeter/ ,2.54 ,inch ,- ,CORRECT ,ANSWER-a. ,2.54 ,centimeter/ ,1 ,inch
You ,would ,like ,to ,know ,whether ,silicon ,will ,float ,in ,mercury ,and ,you ,know ,that ,can
,determine ,this ,based ,on ,their ,densities. ,Unfortunately, ,you ,have ,the ,density ,of
,mercury ,in ,units ,of ,kilogram/meter^3 ,and ,the ,density ,of ,silicon ,in ,other ,units: ,2.33
,gram/ ,centimeter^3. ,You ,decide ,to ,convert ,the ,density ,of ,silicon ,into ,units ,of
,kilogram/ ,meter^3 ,to ,perform ,the ,comparison. ,By ,which ,combination ,of ,conversion
,factors ,will ,you ,multiply ,2.33 ,gram/ ,centimeter^3 ,to ,perform ,the ,unit ,conversion? ,-
,CORRECT ,ANSWER-1 ,kilogram/ ,10^3 ,gram ,× ,1 ,centimeter/ ,10^−2meter ,× ,1
,centimeter/ ,10^−2 ,meter ,× ,1 ,centimeter ,10^−2 ,meter
You ,have ,negotiated ,with ,the ,Omicronians ,for ,a ,base ,on ,the ,planet ,Omicron ,Persei
,7. ,The ,architects ,working ,with ,you ,to ,plan ,the ,base ,need ,to ,know ,the ,acceleration ,of
,a ,freely ,falling ,object ,at ,the ,surface ,of ,the ,planet ,in ,order ,to ,adequately ,design ,the
,structures. ,The ,Omicronians ,have ,told ,you ,that ,the ,value ,is ,gOP7=7.29gOP7=7.29
,flurg ,grom^2, ,but ,your ,architects ,use ,the ,units ,meter ,second^2, ,and ,from ,your
,previous ,experience ,you ,know ,that ,both ,the ,Omicronians ,and ,your ,architects ,are
,terrible ,at ,unit ,conversion. ,Thus, ,it's ,up ,to ,you ,to ,do ,the ,unit ,conversion. ,Fortunately,
,you ,know ,the ,unit ,equality ,relationships: ,5.24 ,flurg ,= ,1 ,meter ,and ,1 ,grom ,= ,0.493
,second. ,What ,is ,the ,value ,of ,gOP7 ,in ,the ,units ,your ,architects ,will ,use, ,in
,meter/second^2? ,- ,CORRECT ,ANSWER-gOP7 ,= ,5.72
meter/ ,second^2
A ,student ,solving ,for ,the ,acceleration ,of ,an ,object ,has ,applied ,appropriate ,physics
,principles ,and ,obtained ,the ,expression ,a ,= ,a1 ,+ ,F/m ,where ,a1=3.00 ,meter/second2,
,F=12.0 ,kilogram⋅meter/second2 ,and ,m=7.00 ,kilogram. ,First, ,which ,of ,the ,following ,is
,the ,correct ,step ,for ,obtaining ,a ,common ,denominator ,for ,the ,two ,fractions ,in ,the
,expression ,in ,solving ,for ,a? ,- ,CORRECT ,ANSWER-a= ,(m/m⋅a1/1)+(1/1⋅F/m)
Next, ,based ,on ,the ,correct ,answer ,from ,Part ,A, ,which ,of ,the ,following ,is ,the ,correct
,symbolic ,expression ,for ,a? ,- ,CORRECT ,ANSWER-a= ,ma1+F/m
Finally, ,what ,is ,the ,numerical ,value ,of ,aa? ,- ,CORRECT ,ANSWER-a ,= ,4.71 ,meter/
,second^2
Correct Answers 2025
What ,is ,the ,Physics ,Primer?
a. ,A ,tutorial ,of ,the ,most ,important ,physics ,concepts ,covered ,in ,introductory ,physics
,courses.
b. ,A ,detailed ,explanation ,of ,all ,of ,the ,mathematics ,you ,will ,use ,in ,your ,introductory
,physics ,course.
c. ,A ,list ,of ,the ,most ,important ,formulas ,used ,in ,introductory ,physics ,courses.
d. ,A ,set ,of ,mathematics ,topics ,that ,are ,relevant ,to ,introductory ,physics ,courses. ,-
,CORRECT ,ANSWER-d. ,A ,set ,of ,mathematics ,topics ,that ,are ,relevant ,to ,introductory
,physics ,courses.
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,mass ,of ,the ,Earth ,is ,written ,in
,scientific ,notation: ,5,970,000,000,000,000,000,000,000 ,kg ,- ,CORRECT ,ANSWER-m,
,n ,= ,5.97, ,24
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,average ,distance ,from ,the ,Sun
,to ,the ,Earth ,is ,written ,in ,scientific ,notation: ,150,000,000,000 ,mm. ,- ,CORRECT
,ANSWER-m,n ,= ,1.5, ,11
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,charge ,of ,a ,proton ,is ,written ,in
,scientific ,notation: ,0.000000000000000000160 ,C. ,- ,CORRECT ,ANSWER-m,n ,= ,1.60,
,-19
Determine ,the ,values ,of ,m ,and ,n ,when ,the ,following ,average ,magnetic ,field ,strength
,of ,the ,Earth ,is ,written ,in ,scientific ,notation: ,0.0000451 ,T ,- ,CORRECT ,ANSWER-m, ,n
,= ,4.51, ,-5
The ,mass ,of ,a ,high ,speed ,train ,is ,4.5×105 ,kg, ,and ,it ,is ,traveling ,forward ,at ,a ,velocity
,of ,8.3×101 ,m/s. ,Given ,that ,momentum ,equals ,mass ,times ,velocity, ,determine ,the
,values ,of ,mm ,and ,n ,when ,the ,momentum ,of ,the ,train ,(in ,kg⋅m/s) ,is ,written ,in
,scientific ,notation. ,- ,CORRECT ,ANSWER-m,n ,= ,3.7,7
Given ,that ,average ,speed ,is ,distance ,traveled ,divided ,by ,time, ,determine ,the ,values
,of ,m ,and ,n ,when ,the ,time ,it ,takes ,a ,beam ,of ,light ,to ,get ,from ,the ,Sun ,to ,the ,Earth
, ,(in ,s) ,is ,written ,in ,scientific ,notation. ,Note: ,the ,speed ,of ,light ,is ,approximately
,3.0×108 ,m/s. ,- ,CORRECT ,ANSWER-m,n ,= ,5.0, ,2
In ,an ,experiment ,you ,are ,performing, ,your ,lab ,partner ,has ,measured ,the ,distance ,a
,cart ,has ,traveled: ,28.4inch. ,You ,need ,the ,distance ,in ,units ,of ,centimeter ,and ,you
,know ,the ,unit ,equality ,1inch=2.54centimeter. ,By ,which ,conversion ,factor ,will ,you
,multiply ,28.4inch ,in ,order ,to ,perform ,the ,unit ,conversion?
a. ,2.54 ,centimeter/ ,1 ,inch
b. ,2.54 ,inch ,/ ,1 ,centimeter
c. ,1 ,inch ,/ ,2.54 ,centimeter ,
d. ,1 ,centimeter/ ,2.54 ,inch ,- ,CORRECT ,ANSWER-a. ,2.54 ,centimeter/ ,1 ,inch
You ,would ,like ,to ,know ,whether ,silicon ,will ,float ,in ,mercury ,and ,you ,know ,that ,can
,determine ,this ,based ,on ,their ,densities. ,Unfortunately, ,you ,have ,the ,density ,of
,mercury ,in ,units ,of ,kilogram/meter^3 ,and ,the ,density ,of ,silicon ,in ,other ,units: ,2.33
,gram/ ,centimeter^3. ,You ,decide ,to ,convert ,the ,density ,of ,silicon ,into ,units ,of
,kilogram/ ,meter^3 ,to ,perform ,the ,comparison. ,By ,which ,combination ,of ,conversion
,factors ,will ,you ,multiply ,2.33 ,gram/ ,centimeter^3 ,to ,perform ,the ,unit ,conversion? ,-
,CORRECT ,ANSWER-1 ,kilogram/ ,10^3 ,gram ,× ,1 ,centimeter/ ,10^−2meter ,× ,1
,centimeter/ ,10^−2 ,meter ,× ,1 ,centimeter ,10^−2 ,meter
You ,have ,negotiated ,with ,the ,Omicronians ,for ,a ,base ,on ,the ,planet ,Omicron ,Persei
,7. ,The ,architects ,working ,with ,you ,to ,plan ,the ,base ,need ,to ,know ,the ,acceleration ,of
,a ,freely ,falling ,object ,at ,the ,surface ,of ,the ,planet ,in ,order ,to ,adequately ,design ,the
,structures. ,The ,Omicronians ,have ,told ,you ,that ,the ,value ,is ,gOP7=7.29gOP7=7.29
,flurg ,grom^2, ,but ,your ,architects ,use ,the ,units ,meter ,second^2, ,and ,from ,your
,previous ,experience ,you ,know ,that ,both ,the ,Omicronians ,and ,your ,architects ,are
,terrible ,at ,unit ,conversion. ,Thus, ,it's ,up ,to ,you ,to ,do ,the ,unit ,conversion. ,Fortunately,
,you ,know ,the ,unit ,equality ,relationships: ,5.24 ,flurg ,= ,1 ,meter ,and ,1 ,grom ,= ,0.493
,second. ,What ,is ,the ,value ,of ,gOP7 ,in ,the ,units ,your ,architects ,will ,use, ,in
,meter/second^2? ,- ,CORRECT ,ANSWER-gOP7 ,= ,5.72
meter/ ,second^2
A ,student ,solving ,for ,the ,acceleration ,of ,an ,object ,has ,applied ,appropriate ,physics
,principles ,and ,obtained ,the ,expression ,a ,= ,a1 ,+ ,F/m ,where ,a1=3.00 ,meter/second2,
,F=12.0 ,kilogram⋅meter/second2 ,and ,m=7.00 ,kilogram. ,First, ,which ,of ,the ,following ,is
,the ,correct ,step ,for ,obtaining ,a ,common ,denominator ,for ,the ,two ,fractions ,in ,the
,expression ,in ,solving ,for ,a? ,- ,CORRECT ,ANSWER-a= ,(m/m⋅a1/1)+(1/1⋅F/m)
Next, ,based ,on ,the ,correct ,answer ,from ,Part ,A, ,which ,of ,the ,following ,is ,the ,correct
,symbolic ,expression ,for ,a? ,- ,CORRECT ,ANSWER-a= ,ma1+F/m
Finally, ,what ,is ,the ,numerical ,value ,of ,aa? ,- ,CORRECT ,ANSWER-a ,= ,4.71 ,meter/
,second^2
