Past 2017 top best forum
Today's Date
Nigeria free 2018 Gallery
9ja NOTICE: You are currently viewing this website as a Guest and are restricted from viewing some vital information. For more permissions on Earlyface.com.ng? Like posting Comments, Topics and Uploading contents without Verification And Moderator's approval. Fast loading and quick accessibility. Registration is required. Please Login or Register now to gain full access. It is fast and free!!

CLICK HERE NOW TO BECOME EARLYFACE MEMBER...


Author Topic: Real NABTEB GCE Physics Objective (OBJ) And Essay Question And Answers  (Read 3294 times)

0 Members and 1 Guest are viewing this topic.

Offline MusaMuhammed

  • VIP MEMBER
  • Golden Member
  • *
  • Posts: 652
  • Vote for me: +28/-8
  • Location: Lokoja
Real physics OBJ
1-10)aabdaaddcb
11-20)adabdcdcbd
21-30)adbbaabbdb
31-40)bddaabdbcd
41-50)accabdbdbb


Theory ANSWERS:
(No 1a)
i)machine can be defined as a tools used to fasten work.for example,a heavy roller or barrel can best be raised up a step by rolling it up an inclined plank of wood with one end resting on the step. With this help of d tools its make work faster,therefore a machine is any tools that aid work

ii)a=lever,b=pulleys

iii)when machines are used,d smal effort p moves through a large distance nd d large resistance or load moves through a smal distance in d same time.
Velocity Ratio=distance moved by effort/distance moved by load=5
that is what d statement mean

1b)efficiency of a machine can be defined as d work obtained divided by d work supplied multiply by 100%
mathematically,efficiency=work obtained/work supplied x 100/1,further more
efficiency=M.A/V.R X 100%

1bii)machine can not be 100% efficient bcus along d way there wil be energy loss

1c)data
efficient=25%,screw of pitch=0.4cm,radius=40.0cm
1)d velocity ratio of d machine=distance moved by effort/distance moved by load
V.R=2 par R/p
R=radius =40.0cm,conversion to meter=40/100=0.4meter
screw of pitch=)0.4cm,conversion to meter=0.4/100=0.04meter
Velocity Ratio=2 par R/p
par=3.142,R=0.4,p=0.04,therefore
V.R=2X3.142X0.4/0.04
V.R=2.5136/0.04=6.284
ii)M.A = V.R=6.284
iii)load=1000N,Effort=?
Mechanical advantage=load/effort
6.284=1000/E,Cross multiply=6.284E=1000
E=1000/6.284,E=159.13

(No3a)principal focus is dat point on d principal axis to which incident rays parallel and close to the principal axis coverage or frm which they appear to diverge after reflection

3aii)pole-pole (p) is d centre of d reflecting surface of d curved mirror

3aiii)radius of curvature (r) is d distance or it is d radius of d shape of which d mirror forms a part

3b)advantages=convex mirror always make image real nd very clear
disadvantage=convex mirror makes image closer more than d object

no.3 I/v+I/U=I/F
M=V/U
The distance of the object frm d lens is 0.025cm
(
power of d lens=magnification
m=v/u
m=-1.0/30
m=0.033

(no. 4a)electrolyte is d liquid on molten substance which conducts a current nd is decomposed by heat
ii). Electroplating- is d process of coating a metallic object with another metal in order to improve its appearance or to safeguard it against corrosion
examples,copper nd silver used 2 electroplate other metalic object.
iii) if d electrochemical equivalent of copper is 3.0x10 rais to power -4 g it means dat d mass of copper deposited in d electrolyte can takem a certain time nd current to dissolve it
4c)faraday's first law of electrolysis states dat d mass of element deposited by electrolysis in a given voltmeter is directly proportional to d current nd d time
m proportional to It
m=zit

No. 5
emission line spectrum is a spectrum dat consist of a numba of wel defined lines each having a particular frequency or wavelength.
In a line spectrum only certain wavelength of light are emmited.

5bi) x rays are waves bcus it has lower penetrating power and wavelength.
X rays are diffracted by crystals.
X rays are not deflected by electric or magnetic field

5bii)uses of x rays
i. They are used in airport to detect metals nd contraband in a baggage
ii. X rays are used in industries to detect cracks nd flaws in metal castings nd welded joints

MORE THEORY ANSWERS LOADING.......


Don't forget to click the SHARE and LIKE below this post, to share this information with your friends on Facebook because they too would enjoy reading it also.
   
To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
 
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline sare

    • Young Earlyfacian
    • Posts: 6
    • Vote for me: +0/-0
    • Location: ogun
    may GOD bless u please what about today paper pls.

    Offline sare

    • Young Earlyfacian
    • Posts: 6
    • Vote for me: +0/-0
    • Location: ogun
    may GOD bless u please what about today paper pls.

    Offline bombo

    • Young Earlyfacian
    • Posts: 1
    • Vote for me: +0/-0
    • Location: oyo state
    Ok boss we ar watin 4 u

    Offline Timpam

    • Young Earlyfacian
    • Posts: 9
    • Vote for me: +0/-0
    • Location: Jos
    We thank God for u guys. Thanks for d help

    Offline henryade

    • Young Earlyfacian
    • Posts: 6
    • Vote for me: +0/-0
    • Location: bauchi
    Up Xbrain!!!!

    Offline wondaboy

    • SweetPlus Member
    • Posts: 56
    • Vote for me: +1/-0
    • Location: Abuja
    tanks man!
    my mother say she love u
    Stay Updated: Like Earlyface on Facebook Or Follow Up On Twitter.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    Ok all, 2mao is the showday. Just make sure u r online. BCus Physics OBJ ND ESSAY answers wil be posted live here. Up xbrain.  Pple wif xtra brain
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    Ok all, 2mao is the showday. Just make sure u r online. BCus Physics OBJ ND ESSAY answers wil be posted live here. Up xbrain.  Pple wif xtra brain
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline wondaboy

    • SweetPlus Member
    • Posts: 56
    • Vote for me: +1/-0
    • Location: Abuja
    yes sir.
    tanks very vry much
    Stay Updated: Like Earlyface on Facebook Or Follow Up On Twitter.

    Offline henryade

    • Young Earlyfacian
    • Posts: 6
    • Vote for me: +0/-0
    • Location: bauchi
    xbrain pls we ar expectin NABTEB Physics

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    Real Physics OBJ
    1-10)aabdaaddcb
    11-20)adabdcdcbd
    21-30)adbbaabbdb
    31-40)bddaabdbcd
    41-50)accabdbdbb
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    Essay no.3
    I/v+I/U=I/F
    M=V/U
    The distance of the object frm d lens is 0.025cm
    (
    power of d lens=magnification
    m=v/u
    m=-1.0/30
    m=0.033

    (no. 4a)electrolyte is d liquid on molten substance which conducts a current nd is decomposed by heat
    ii). Electroplating- is d process of coating a metallic object with another metal in order to improve its appearance or to safeguard it against corrosion
    examples,copper nd silver used 2 electroplate other metalic object.
    iii) if d electrochemical equivalent of copper is 3.0x10 rais to power -4 g it means dat d mass of copper deposited in d electrolyte can takem a certain time nd current to dissolve it
    4c)faraday's first law of electrolysis states dat d mass of element deposited by electrolysis in a given voltmeter is directly proportional to d current nd d time
    m proportional to It
    m=zit
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    No. 5
    emission line spectrum is a spectrum dat consist of a numba of wel defined lines each having a particular frequency or wavelength.
    In a line spectrum only certain wavelength of light are emmited.

    5bi) x rays are waves bcus it has lower penetrating power and wavelength.
    X rays are diffracted by crystals.
    X rays are not deflected by electric or magnetic field

    5bii)uses of x rays
    i. They are used in airport to detect metals nd contraband in a baggage
    ii. X rays are used in industries to detect cracks nd flaws in metal castings nd welded joints
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    (No3a)principal focus is dat point on d principal axis to which incident rays parallel and close to the principal axis coverage or frm which they appear to diverge after reflection

    3aii)pole-pole (p) is d centre of d reflecting surface of d curved mirror

    3aiii)radius of curvature (r) is d distance or it is d radius of d shape of which d mirror forms a part

    3b)advantages=convex mirror always make image real nd very clear
    disadvantage=convex mirror makes image closer more than d object
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    (No 1a)
    i)machine can be defined as a tools used to fasten work.for example,a heavy roller or barrel can best be raised up a step by rolling it up an inclined plank of wood with one end resting on the step. With this help of d tools its make work faster,therefore a machine is any tools that aid work

    ii)a=lever,b=pulleys

    iii)when machines are used,d smal effort p moves through a large distance nd d large resistance or load moves through a smal distance in d same time.
    Velocity Ratio=distance moved by effort/distance moved by load=5
    that is what d statement mean

    1b)efficiency of a machine can be defined as d work obtained divided by d work supplied multiply by 100%
    mathematically,efficiency=work obtained/work supplied x 100/1,further more
    efficiency=M.A/V.R X 100%

    1bii)machine can not be 100% efficient bcus along d way there wil be energy loss
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    1c)data
    efficient=25%,screw of pitch=0.4cm,radius=40.0cm
    1)d velocity ratio of d machine=distance moved by effort/distance moved by load
    V.R=2 par R/p
    R=radius =40.0cm,conversion to meter=40/100=0.4meter
    screw of pitch=)0.4cm,conversion to meter=0.4/100=0.04meter
    Velocity Ratio=2 par R/p
    par=3.142,R=0.4,p=0.04,therefore
    V.R=2X3.142X0.4/0.04
    V.R=2.5136/0.04=6.284
    ii)M.A = V.R=6.284
    iii)load=1000N,Effort=?
    Mechanical advantage=load/effort
    6.284=1000/E,Cross multiply=6.284E=1000
    E=1000/6.284,E=159.13
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

    Offline MusaMuhammed

    • VIP MEMBER
    • Golden Member
    • *
    • Posts: 652
    • Vote for me: +28/-8
    • Location: Lokoja
    1c)data
    efficient=25%,screw of pitch=0.4cm,radius=40.0cm
    1)d velocity ratio of d machine=distance moved by effort/distance moved by load
    V.R=2 par R/p
    R=radius =40.0cm,conversion to meter=40/100=0.4meter
    screw of pitch=)0.4cm,conversion to meter=0.4/100=0.04meter
    Velocity Ratio=2 par R/p
    par=3.142,R=0.4,p=0.04,therefore
    V.R=2X3.142X0.4/0.04
    V.R=2.5136/0.04=6.284
    ii)M.A = V.R=6.284
    iii)load=1000N,Effort=?
    Mechanical advantage=load/effort
    6.284=1000/E,Cross multiply=6.284E=1000
    E=1000/6.284,E=159.13
       
    To be getting all EarlyFace confirmed Updates (latest news in town, free browsing cheats, hottest FREEBIES, post-UTME tips, school matter and Exam stuff) for free through your Facebook and Twitter profile;
     
  • CLICK HERE to Like EARLYFACE on Facebook
  •  
  • CLICK HERE to Follow EARLYFACE on Twitter

  •    
    How To Create A Topic On Earlyface
     
    How To Create A Topic or Post On Earlyface as a Novice.

     

    Related Topics


    Updated Topics

    NetContacts Membership Invitation by wedco893
    March 26, 2024, 06:42:58 pm

    NetContacts Membership Invitation by wedco893
    March 26, 2024, 06:26:58 pm

    CORRECT: 2024/2025 JAMB RUNS SUBSCRIPTION( REFORMED PACKAGES) by MANDINHO
    March 24, 2024, 09:11:15 pm

    UK FOOTBALL POOLS COUPON | 30TH MARCH 2024 | WEEK 39: X-02-X by wedco893
    March 24, 2024, 07:40:25 pm

    UK FOOTBALL POOLS COUPON | 23RD MARCH 2024 | WEEK 38: X-05-X by wedco893
    March 18, 2024, 06:52:10 pm

    Solve you've been logout for using unofficial Whatsapp app Gb Whatsapp problem by Wiz.gee
    March 16, 2024, 02:18:51 am

    Girls: Female's Education Ends In Kitchen by Babatunde aliyat
    March 12, 2024, 06:12:54 am


    FBLike US on Facebook.. TWFollow US on Twitter..

    Portal
    Forum
    RSS Feeds
    FAQ
    Members Intro
    Announcements
    Privacy Policy
    Terms Of Use
    Partners
    About Us

    Problem Solutions
    Global News
    Sports
    Celebs
    Politics
    Gists In Town
    General
    Song Lyrics
    Dating
    Religion

    Examination
    Post-UTME/Admission
    School News
    Online Reading
    Scholarship
    Education
    Entertainment
    Download Links
    Stories
    Fashion

    MTN NG
    9Mobile NG
    Airtel NG
    Glo NG
    World Networks
    Pc Tweaks
    Mobile Phone
    Computer Tips
    WebMaster
    Programming

    Browsing Cheats
    Net Tricks
    Health n Welfare
    Latest Jobs
    EarlyFace Group Of Nigeria © 2022