Lecture room for physics. Take your pen and book now!
TUTOR
LogoDwhiz

Microflux:
Lecture room for physics. Take your pen and book now!
TUTOR
LogoDwhiz

Okay boss!

I'm available.
Just a mention away!

LogoDWhiz:


Okay boss!

I'm available.
Just a mention away!

Pls Sir.
A body of 100g moving with a velocity of 10m/s colides with a wall, if after the collision it moves with a velocity of 2m/s in the opposite direction, calculate the change in momentum.
Answers pls

Not again.

Modified!!!

Official JAMB Syllabus for Physics CBT 2015 (SHARE THIS)
Importance of JAMB Syllabus for Physics CBT 2015
1. MEASUREMENTS AND UNITS
(a) Length area and volume:

Metre rule, Venier calipers Micrometer Screw-guage

(b) Mass
(i) unit of mass

(ii) use of simple beam balance

(c) Time
(i) unit of time

(ii) time-measuring devices

(d) Fundamental physical quantities
(e) Derived physical quantities and their units

(i) Combinations of fundamental quantities and determination of their units

(f) Dimensions
(i) definition of dimensions

(ii) simple examples

Candidates should be able to:i. identify the units of length area and volume;
ii. use different measuring instruments;

iii. determine the lengths, surface areas and volume of regular and irregular bodies;

iv. identify the unit of mass;

v. use simple beam balance, e.g Buchart’s balance and chemical balance;

vi. identify the unit of time;

vii. use different time-measuring devices;

viii. relate the fundamental physical quantities to their units;

ix. deduce the units of derived physical quantities;

x. Determine the dimensions of physical quantities;

xi. use the dimensions to determine the units

(g) Limitations of experimental measurements
(i) accuracy of measuring instruments

(ii) simple estimation of errors.

(iii) significant figures.

(iv) standard form.

2. Scalars and Vectors
(i) definition of scalar and vector quantities

(ii) examples of scalar and vector quantities

(iii) relative velocity

(iv) resolution of vectors into two perpendicular directions including graphical methods of

solution.

3. Motion
(a) Types of motion:

translational, oscillatory, rotational, spin and

random

(b) linear motion
(i) speed, velocity and acceleration

(ii) equations of uniformly accelerated motion

(iii) motion under gravity

(iv) distance-time graph and velocity time graph

(v) instantaneous velocity and acceleration.

(c) Projectiles:
(i) calculation of range, maximum height and

time of fight

(ii) applications of projectile motion

(d) Newton’s laws of motion:
(i) inertia, mass and force

(ii) relationship between mass and acceleration

(iii) impulse and momentum

(iv) conservation of linear momentum (Coefficient of restitution not

of physical quantities;xii. test the homogeneity of an equation;
xiii. determine the accuracy of measuring instruments;

xiv. estimate simple errors;

xv. express measurements in standard form.

Candidates should be able to:

i. distinguish between scalar and vector quantities;

ii. give examples of scalar and vector quantities;

iii. determine the resultant of two or more vectors;

iv. determine relative velocity;

v. resolve vectors into two perpendicular components;

vi. use graphical methods to solve vector problems;

Candidates should be able to :

i. identify different types of motion ;

ii. differentiate between speed, velocity and acceleration;

iii. deduce equations of uniformly accelerated motion;

iv. solve problems of motion under gravity;

v. interpret distance-time graph and velocity-time graph;

vi. compute instantaneous velocity and acceleration

vii. establish expressions for the range, maximum height and time of flight of projectiles;

viii. solve problems involving projectile motion;

ix. interpret Newton’s laws of motion;

x. compare inertia, mass and force;

xi. deduce the relationship between mass and acceleration;

xii. solve numerical problems involving impulse and momentum;

necessary)
(e) Motion in a circle:
(i) angular velocity and angular acceleration

(ii) centripetal and centrifugal forces.

(iii) applications

(f) Simple Harmonic Motion (S.H.M):
(i) definition and explanation of simple harmonic motion

(ii) examples of systems that execute S.H.M

(iii) period frequency and amplitude of S.H.M

(iv) velocity and acceleration of S.H.M

(v) energy change in S.H.M

4 Gravitational field

(i) Newton’s law of universal gravitation

(ii) gravitational potential

(iii) conservative and non-conservative fields

(iv) acceleration due to gravity

g = GM

R

(iv) variation of g on the earth’s surface

(v) distinction between mass and weight

(vi) escape velocity

(vii) parking orbit and weightlessness

5. Equilibrium of Forces
(a) equilibrium of a particles:

(i) equilibrium of coplanar forces

(ii) triangles and polygon of forces

(iii) Lami’s theorem

(b) principles of moments

(i) moment of a force

(ii) simple treatment and moment of a couple (torgue)

(iii) applications

(c) conditions for equilibrium of rigid bodies under the action of parallel and non-parallel forces
(i) resolution and composition of forces in two perpendicular directions,

xiii. interpret the law of conservation of linear momentum;xiv. establish expression for angular velocity, angular acceleration and centripetal force;
xv. solve numerical problems involving motion in a circle;

xvi. establish the relationship between period and frequency;

xvii. analyse the energy changes occurring during S.H.M

Candidates should be able to:

i. identify the expression for gravitational force between two bodies;

ii. apply Newton’s law of universal gravitation;

iii. give examples of conservative and non- conservation fields;

iv. deduce the expression for gravitational field potentials;

v. identify the causes of variation of g on the earth’s surface;

vi. differentiate between mass and weight;

vii. determine escape velocity

Candidates should be able to:

i. apply the conditions for the equilibrium of coplanar force to solve problems;

ii. use triangle and polygon laws of forces to solve equilibrium problems;

iii. use Lami’s theorem to solve problems;

iv. analyse the principle of moment of a force;

v. determine moment of a force and couple;

vi. describe some applications of moment of a force and couple;

vii. apply the conditions for the equilibrium of rigid bodies to solve problems;


viii. resolve forces into two perpendicular directions;i
x. determine the resultant and equilibrant of forces;

x. differentiate between stable, unstable and neutral equilibrate.

(ii) resultant and equilibrant(d) centre of gravity and stability
(i) stable, unstable and neutral equilibra

6. Work Energy and Power
(i) definition of work, energy and power

(ii) forms of energy

(iii) conservation of energy

(iv) qualitative treatment between different forms of energy

(v) interpretation of area under the force- distance curve

7. Friction
(i) static and dynamic friction

(ii) coefficient of limiting friction and its determination.

(iii) advantages and disadvantages of friction

(iv) reduction of friction

(v) qualitative treatment of viscosity and terminal viscosity.

(vi) stoke’s law.

8. Simple Machines
(i) definition of machine

(ii) types of machines

(iii) mechanical advantage, velocity ratio and efficiency of machines

9. Elasticity
(i) elastic limit, yield point, breaking point,

Hooke’s law and Young’s modulus

(ii) the spring balance as a device for measuring force

(iii) work done in springs and elastic strings

10. Pressure
(a) Atmospheric Pressure

(i) definition of atmospheric pressure

(ii) units of pressure (S.I) units

(iii) measurement of pressure

(iv) simple mercury barometer,

aneroid barometer and manometer.

(v) variation of pressure with height

(vi) the use of barometer as an altimeter.

(b) Pressure in liquids

(i) the relationship between pressure, depth and density (P = rgh)

viii. resolve forces into two perpendicular directions;ix. determine the resultant and equilibrant of forces;
x. differentiate between stable, unstable and neutral equilibrate.

Candidates should be able to:

i. differentiate between work, energy and power;

ii. compare different forms of energy, giving examples;

iii. apply the principle of conservation of energy;

iv. examine the transformation between different forms of energy;

v. interpret the area under the force –distance curve.

Candidates should be able to:

i. differentiate between static and dynamic friction

ii. determine the coefficient of limiting friction;

iii. compare the advantages and disadvantage of friction;

iv. suggest ways by which friction can be reduced;

v. analyse factors that affect viscosity and terminal velocity;

vi. apply stoke’s law.

Candidates should be able to:

i. identify different types of machines;

ii. solve problems involving simple machines.

Candidates should be able to:

i. interpret force-extension curves;

ii. interpret Hooke’s law and Young’s modulus of a material;

iii use spring balance to measure force;

iv. determine the work done in spring and elastic strings

Candidates should be able to:

i. recognize the S.I units of pressure;

ii. identify pressure measuring instruments;

iii. relate the variation of pressure to height;

iv. use a barometer as an altimeter.

v. determine the relationship between pressure, depth and density;

11. Liquids At Rest
(i) determination of density of solid and liquids

(ii) definition of relative density

(iii) upthrust on a body immersed in a liquid

(iv) Archimede’s principle and law of floatation and applications, e.g. ships and hydrometers.

Candidates should be able to:

i. distinguish between density and relative density of substances;

ii. determine the upthrust on a body immersed in a liquid;

iii. apply Archimedes’ principle and law of floatation to solve problems.

12. Temperature and Its Measurement
(i) concept of temperature

(ii) thermometric properties

(iii) calibration of thermometers

(iv) temperature scales –Celsius and Kelvin.

(v) types of thermometers

(vi) conversion from one scale of temperature to another

Candidates should be able to:

i. identify thermometric properties of materials that are used for different thermometers;

ii. calibrate thermometers;

iii. differentiate between temperature scales e.g Clesius and Kelvin.

iv. compare the types of thermometers;

vi. convert from one scale of temperature to another.

13. Thermal Expansion
(a) Solids

(i) definition and determination of linear, volume and area expansivities

(ii) effects and applications, e.g. expansion in building strips and railway lines

(iv) relationship between different expansivities

(b) Liquids

(i) volume expansivity

(ii) real and apparent expansivities

(iii) determination of volume expansivity

(iv) anomalous expansion of water

Candidates should be able to:

i. determine linear and volume expansivities;

ii. assess the effects and applications of thermal expansivities;

iii. determine the relationship between different expansivities;

iv. determine volume, apparent, and real expansivities of liquids;

v. analyse the anomalous expansion of water.

Candidates should be able to:

i. interpret the gas laws;

ii. use expression of these laws to solve numerical problems.

This thing is much, can't copy it all.

Lemme just post the link here.

http://.com/official-jamb-syllabus-physics-cbt-2015-share/#sthash.jeQDtPNS.dpbs

Early preparation is the key.
Saves u the time and stress of rushing to comprehend all the topics and doing catch up.

You can relax and do revision.
It helps and it frees up your brain to remember things.

Get past questions and get acquainted to it.

guente02:

Pls Sir.
A body of 100g moving with a velocity of 10m/s colides with a wall, if after the collision it moves with a velocity of 2m/s in the opposite direction, calculate the change in momentum.
Answers pls

100g= 0.1kg
Change in momentum = mu-mv
where m= mass, u=initial velocity, v=final velocity.
Since it moves in the opposite direction, the final velocity will carry the minus sign. which is now:
mu-(-mv)= mu+mv.
0.1×10 + 0.1×2 = 1.2kgm/s.

learninq never ends.
Physics my boo.
I love dis vewi well though am a jambite. Anywere i can chip in on.

Logodwiz you helpinq, leggo.
I get pen and jotter o incase

agafiya:

100g= 0.1kg
Change in momentum = mu-mv
where m= mass, u=initial velocity, v=final velocity.
Since it moves in the opposite direction, the final velocity will carry the minus sign. which is now:
mu-(-mv)= mu+mv.
0.1×10 + 0.1×2 = 1.2kgm/s.

Nice.
Seems i'm rusty.

stuff46:
learninq never ends.
Physics my boo.
I love dis vewi well though am a jambite. Anywere i can chip in on.

Logodwiz you helpinq, leggo.
I get pen and jotter o incase

Thanks bro.

Feel free to join in please.
This is all for everyone to learn.

Last time i attempted a physics question was 3 years ago.
But it is my 2nd favourite subject.

Following

Ride on sirs

Keep the thread rolling man graduated from physics dept

I love this, I studied biology and graduated 6 years ago but mehn my passion for physics can never die, keep the questions coming

I'm in 200level nw. . Bt i so mch luv physiks cus its full of suprises esp wen u tink u knw,n a question is solved ull b lyk God. . .hw did dis pple came up wit dis.lol

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LogoDWhiz:


Nice.
Seems i'm rusty.

Then its better to delete your previous solution or modify it

fhunn:


Then its better to delete your previous solution or modify it

Okay.

That might send a wrong signal.
But I'll do so

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somebody give us question,

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During the same time interval,it is observed that a train travels the same distance as does a lorry.the two vehicles there4 have the same?

When taking a penalty kick a footballer applies a force of 30N for a period of 0.05s.
if the mass of the ball is 0.075kg.calculate the speed with which the ball moves.

pls help me out.

jossayo:
During the same time interval,it is observed that a train travels the same distance as does a lorry.the two vehicles there4 have the same?

speed

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