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2023 NECO PHYSICS ANSWERS

Posted by Expocoded
January 4, 2023   |   0 Comments
NECO
2023 NECO PHYSICS ANSWERS

2022 NECO PHYSICS ANSWERS


OBJ:

PHYSICS+Obj!

1BCBBACACBD

11DEADBCDAEE

21DAACAADEAC

31BADEDCAEAB

41EBDDDDAEEB

51BBEAABBCBC

 

Completed!


THEORY ANSWERS!!

 

(1)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/4Escfn0.jpg[/img]


 

(2)

-TABULATE-

SCALAR QUANTITIES

(i) They have magnitude but no direction.

(ii) Scalars are added by ordinary algebraic methods.

 

VECTOR QUANTITIES

(i) They have both magnitude and Direction.

(ii) Vectors are added by Geometrical methods.

 

(2b)

R²=3²+4²

=9+16

=25

 

R=✓25

R=5N


 

(3i)

The floatation principle states that when an object floats in a liquid, the buoyant force acting on the object is equal to the object’s weight.

 

(3ii)

{PICK ANY TWO}

(i) The density of the fluid.

(ii) The volume of the fluid displaced.

(iii) The local acceleration due to gravity.


 

(5a)

{PICK ANY DEFINITION}

(i) Positive charge: This type of charge can be produced by rubbing a glass rod with silk.

 

OR

 

(ii) Negative charge: It can be obtained on an ebonite rod by rubbing it with fur.

 

(5b)

V1= 500cm³

T1 = 23° + 273= 296k

P1 = 600mmHg

V2 = ?

T2= 37° + 273 = 310K

P2 = 720mmHg

 

V1P1 / T1 = V2P2 / T2

500 x 600 / 296 = V2 x 720 / 310

V2 = 500 x 600 x 310 / 720 x 296

V2 = 436.37 cm³


(6a)

Transverse waves particles of waves move perpendicular in the direction of the wave while in longitudinal waves particles move horizontally in the direction of the wave.

 

(6b)

(i) Water waves

(ii) Sound waves


 

(7i)

{PICK ANY ONE}

(i) The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal.

(ii) The incident ray, the normal and the reflected ray are all in the same plane.

(iii) The incident ray and the reflected ray are on different sides of the normal

 

(7ii)

{PICK ANY TWO}

(i) Colorimeter

(ii) spectrophotometer

(iii) Periscope

(iv) kaleidoscope


 

(8)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/ZMdwmMu.jpg[/img]


 

(9)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/PJ7VFar.jpg[/img]


 

(10)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/D7ISf5Z.jpg[/img]


(12)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/Wa7S2Bq.jpg[/img]

[img]https://i.imgur.com/a3CIM0v.jpg[/img]

[img]https://i.imgur.com/mTOulr9.jpg[/img]


 

(13)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/SfnXTls.jpg[/img]

[img]https://i.imgur.com/mO5PBtl.jpg[/img]


 

(15)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/dr03KaI.jpg[/img]


 

(16)

{VIEW IMAGE BELOW}

[img]https://i.imgur.com/0Ta9AzB.jpg[/img]


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