WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics Questions and Answers 2022 for May/June 2022 is now. WAEC Physics Theory and Objective Answers (100% sure) Physics 2 Essay verified Free (Expo) for West African Examinations Council.
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WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics questions and answers 100% Verified
WAEC Physics Questions For you to have good WAEC result in Physics as well as repeated questions for free in this post. You will also understand how WAEC Physics questions are set and how to answer them. The West African Examinations Council is an examination board established by law to determine the examinations required in the public interest in the English-speaking West African countries, to conduct the examinations and to award certificates comparable to those of equivalent examining authorities internationally For those that would like to see the question paper, you can click on the link below:.
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Physics+Obj!
ReplyDelete1ACCCDDCCA
11CCBCBDBDBD
21BBCDBDDBDD
31BCBBDBACCA
41DCCDDDDBDD
Use this obj
Thank you and bye
[6/15, 10:56 AM] Naijahero: (8ai)
ReplyDeleteThe law of inertia states that a body will continue in its present state of rest or if it is in motion, will continue to move with uniform speed in a straight line unless it is acted upon by a force.
(8aii)
When the brakes of the moving vehicle are suddenly applied, or the passengers jerks forward as thet tend to continue in a straight line. The seat belt helps to provide a backward force and reduces injuries.
(8bi)
The moment of a force about a fixed point is the product of the force and the perpendicular distance at the point to the line of action of the force.
(8bii)
(I) Draw the Diagram
[img]https://i.ibb.co/WVpD5FX/IMG-20220615-WA0247.jpg[/img]
(II) clock wise moment = Anticlock wise moment
T x 1.5 = 54 x 0.5
T = 54x0.5/1.5
T = 18N
(III) F + T = w
F = w - T
F = 54 - 8
F = 36N
(8c)
[TABULATE]
=STATIC FRICTION=
(i) Acts whete the surfacrs are at rest
(ii) It had ahighet coefficient value
(iii) Increases linearly wuth the applied force untill it reaches a maximum value.
=DYNAMIC FRICTION=
(i) Acts where the surfaces have relative motion
(ii) Has a lower coefficient value
(iii) Remains constant regardless of the force applied.
(8d)
By increasing the number of pulleys.
[6/15, 11:24 AM] Naijahero: *NUMBER EIGHT*
(8c)
-SOLID FRICTION-
(i) Independent of surface area in contact
(ii) Depends on normal reaction (of one solid surface on the other)
(iii) occurs between solids surface in contact
(iv) Independent of relative velocity (between solid surface in contact)
-VISCOSITY-
(i) Depends on surface area in contact
(ii) Independent of Nomal reaction
(iii) Occurs between fluid layers / solid and fluid in contact in fluids
(iv) Depends on relative velocity (between fluid layers)
[6/15, 11:35 AM] Naijahero: 11a) i Temperature
ii surface area
11b
Latent heat (also known as latent energy or heat of transformation) is energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process — usually a first-order phase transition.
Latent heat can be understood as energy in hidden form which is supplied or extracted to change the state of a substance without changing its temperature. Examples are latent heat of fusion and latent heat of vaporization involved in phase changes, i.e. a substance condensing or vaporizing at a specified temperature and pressure
NUMBER (7)
ReplyDeleteMAGNETIC MATERIAL
1. Magnetic materials are materials that a magnet will attract to itself when placed near a magnet (or when placed in its field).
NON MAGNETIC MATERIAL
1. Non-magnetic materials that will not experience any magnetic force when placed near a magnet, in other words, it will not be attracted to the magnet.
MAGNETIC MATERIAL
2. The magnetic state of magnetic materials are aligned either parallel or antiparallel arrangements hence they can respond to a magnetic field when they are under the influence of an external magnetic field.
NON MAGNETIC MATERIAL
2. The magnetic state of non-magnetic materials are arranged in a random manner in such a way that the magnetic movements of these domains are cancelled out. Hence, they do not respond to a magnetic field.
MAGNET MATERIAL
3. Magnetic materials are used to make permanent magnets, as it can be magnetised by a magnet.
NON MAGNET MATERIAL
3. Non-magnetic materials can never be magnetised by a magnet therefore, it can never become a magnetised material.
[6/15, 10:32 AM] Naijahero: (1)
Range /PQ/ = u²sin2θ/g
u = 250ms-¹
θ =42°
= [250² x sin(2x42°)]/10
= (62,500 x sin84°)/10
= 6250 x 0.9945
= 6215.63m
===========================
(2)
(i) They are pure semiconductors with impurities less than 1 and have teravalent crystals
(ii) Presence of mobile charge carriers is intrinsic property of material
(iii) No doping or addition of impurities required.
===========================
(4)
F = 50N
k = 100Nm-¹
F = ke
50 = 100e
e = 50/100 = 0.5m
Work done = (1/2)ke²
= 1/2 x 100 x 0.5²
= 25/2
= 12.5joules
===========================
(5a)
A geostationary satellite is an earth orbiting satellite placed at an altitude of approximately 35,800km directly over the equator that revolves in the same direction which the earth rotates.
(5b)
(i) Gas lasers
(ii) Solid-state lasers
===========================
[6/15, 10:32 AM] Naijahero: (7)
(i) Magnetic materials are materials having a magnetic domain and are attracted to an external magnetic field WHILE Non-magnetic materials are materials that are not attracted to an external magnetic field.
(ii) The magnetic domains of magnetic materials are aligned either parallel or antiparallel arrangements thus they can respond to a magnetic field when they are under the influence of an external magnetic field WHILE The magnetic domains of non-magnetic materials are arranged in a random manner in such a way that the magnetic moments of these domains are cancelled out. Thus, they do not respond to a magnetic field.
(iii) Magnetic materials are used to make permanent magnets are the parts of operating systems where magnetic properties are required WHILE Non-magnetic materials are used to make parts of some operating systems where no magnetic effect are expected and other things such as cases of compasses.