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    Posted 7 years ago in Form 4

    Magnetism

    what is that?,,

      1       1

    Comments  

    Fazil Mewa   Posted on 4 years ago

    is the ability to attract thing that have presence of metal or magnetic material

    Posted 7 years ago in Form 2

    Concideration Of Linear Momentum

    First I Wanna Know How 2 Find Total Collision,after Collision

      0       2

    Comments  

    Allen Pantaleo   Posted on 7 years ago

    Total Momentum Before Collision=total Momentum After Collision
    M1 V1+m2+v2=m1 V1+m2 V2

    Allen Pantaleo   Posted on 7 years ago

    The Sum Of 2 Momentum = 0

    Posted 7 years ago in Form 3

    Vector

    What are the Typse of vector?

      0       1

    Comments  

    Ticha Kidevu   Posted on 7 years ago

    There are two types of vector
    1. Scalar quantities
    2. Vector quantities

    Scalar is the measurement of a medium strictly in magnitude.

    Vector is a measurement that refers to both the magnitude of the medium as well as the direction of the movement the medium has taken.

    Posted 7 years ago in Form 4

    Global warming

    what are impacts brought by global warming?

      0       1

    Comments  

    Erick Matovu   Posted on 7 years ago

    This are;
    >Pollution fact of the air
    >Wasted disposal
    >Greenhouse which coz the Climatic change

    Posted 7 years ago in Form 4

    Wave

    what are the things affect velocity of wave in air?

      1       0

    Comments  

    Posted 7 years ago in Form 4

    Velocty

    Difinition of velocty and fomulure

      0       6

    Comments  

    Dickson Grishon   Posted on 10 months ago

    Velocity is the rate of change of displacement.

    Suleimani Athumani   Posted on 6 years ago

    Velocity:is the rate of displasment and time
    Formular:displasment/time taken

    Suleimani Athumani   Posted on 6 years ago

    Velocity:is the rate of displasment and time
    Formular:displasment/time taken

    Swabrah Ikram   Posted on 7 years ago

    velocity is the ratio of displacement to the time taken. formula: velocity=displacement/ time,

    its s.i unit is m/s

    Posted 7 years ago in Form 4

    Electronics

    Electronics

      1       2

    Comments  

    SYLVESTER MPENDA   Posted on 7 years ago

    Electronics is the science of how to control electric energy, energy in which the electrons have a fundamental role. Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive electrical components and interconnection technologies. Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements; such a circuit is described as an electronic circuit.

    Careen Edward   Posted on 7 years ago

    Electronics is the study and utilization of electrons/current conduction through semiconductors, vacuum or gas.

    Posted 7 years ago in Form 4

    Resistance!

    Resistance is the anything/material which do not permit electrons/electricity to path freely!

      1       5

    Comments  

    Jair Hansel   Posted on 7 years ago

    that is not true

    Careen Edward   Posted on 7 years ago

    @hashcarter "...anything/material which do not permit electrons/electricity to path freely.." This is known as a RESISTOR.

    RESISTANCE:- Is the opposition to the flow electric current and its unit is Ohms (?)

    Hassan Mustapha   Posted on 7 years ago

    Thanks for shown the definition of resistance by mathematically!

    Mponela Massawa   Posted on 7 years ago

    Sometime it can be: Resistance = Voltage/Current.

    Posted 7 years ago in Form 4

    Electricity

    What is magnetic flux?

      1       2

    Comments  

    Zizzou Mocky   Posted on 4 years ago

    Magnetic flux is the surface integral of the normal component of the magnetic field passing through a surface

    Almasi Magorwa   Posted on 6 years ago

    is the magnetic field density

    Posted 7 years ago in Form 4

    CALCULATION OF DENSITY

    Acrown made of an alloy of gold and silver has avolume of 70 centmetre cubic and amass of 1.05kg.find the mass of gold contained in the crown.the density of gold is 18.5 and the density of silver is 12.5

      1       0

    Comments  

    Posted 8 years ago in Form 2

    FORCES

    Why does water wett the glass and mercury doesn`t wet it?

     

      1       6

    Comments  

    Rhyner Diego   Posted on 5 years ago

    cohesion and adhesion

    Suleimani Athumani   Posted on 6 years ago

    Because properties or molecules of water doesnot packed together also molecule or properties of water based in adhesion force while properties or molecule of mercury packed together also molecule or properties of mercury based in cohesion force

    Suleimani Athumani   Posted on 6 years ago

    Because properties or molecules of water doesnot packed together also molecule or properties of water based in adhesion force while properties or molecule of mercury packed together also molecule or properties of mercury based in cohesion force

    Suleimani Athumani   Posted on 6 years ago

    Because properties or molecules of water doesnot packed together also molecule or properties of water based in adhesion force while properties or molecule of mercury packed together also molecule or properties of mercury based in cohesion force

    Posted 8 years ago in Form 2

    Heat

    If you left the refrigerator door open, what would happen to the room temperature and why?

      0       3

    Comments  

    Rose Yusuph   Posted on 7 years ago

    the temperature will dcrease and therefore the air will penetrate to de room and the room will have low temperature

    Jumaa Frenk   Posted on 8 years ago

    The room would get warmer! Think of a refrigerator as a device that transfers heat from inside a box to its surroundings. The room around a refrigerator is warmed as it receives the heat removed from inside the box.

    If you leave the door open, heat is merely recycled from the room into the refrigerator, then back into the room. A net room temperature increase would result from the heat of the motor that would be constantly running to move energy around in a circle. It would be like hooking up a water pump to remove water from your basement and routing the discharge tube back to the basement.

    Milka Digha   Posted on 8 years ago

    the temperature will fall slowly because of the coldness of refrigerator. the cold air from refrigerator will be transferring to the hot air in the room and cool the room temperature.

    Posted 8 years ago in Form 2

    Gravitational Force

    Why does a man bend forward while climbing up the hill and backward while climbing down ?

      0       4

    Comments  

    Lin Kasimbo   Posted on 4 years ago

    It is due to the normal reaction force that always perpendicular to the suface

    Rose Yusuph   Posted on 7 years ago

    it is due to the forc eof gravity he so,for hi to maintain balance

    Jumaa Frenk   Posted on 8 years ago

    So as to maintain balance. That has to do with the centre of gravity of the body, and that shifts somewhat when negotiating a slope.

    Phina James   Posted on 8 years ago

    Its because of gravitation balance

    Posted 8 years ago in Form 4

    Eddy curent?

    what is eddy current

      0       1

    Comments  

    Innocent Simba   Posted on 8 years ago

    Eddy current these are small circular electric current induced in a conductor due to changing in magnetic field. When you place a block of metal within magnetic fields  small circular current are created which are eddy currents,and the magnetic fields created by eddy currents are moving to oppose the magnetic field to created it according to Lenz's law.

    Posted 8 years ago in Form 3

    Vapour & humidity

    ni ni ni shidaaaaaaaaaaaaa,,, popopoooooooooooooo!!!!!!!!!!!!!!

      0       1

    Comments  

    Lengashe Laizer   Posted on 8 years ago

    TUONGEZE BIDII

    Posted 8 years ago in Form 1

    Archimedes\' principle

    explain the concerpt of Archimedes' principle

      0       10

    Comments  

    Esther Alfa   Posted on 2 years ago

    State that ,any object partially or completely immersed in a fluid experience an upthrust

    Robert Minzani   Posted on 3 years ago

    when a body is totally / patially submmerged/ immersed in a fluid expirience an upthrust is equal to weight of fluid displaced

    Robert Minzani   Posted on 3 years ago

    when a body is totally / patially submmerged/ immersed in a fluid expirience an upthrust is equal to weight of fluid displaced

    Robert Minzani   Posted on 3 years ago

    when a body is totally / patially submmerged/ immersed in a fluid expirience an upthrust is equal to weight of fluid displaced

    Posted 8 years ago in Form 4

    Eletromagnetism

    Electromagnetism, or the electromagnetic force is one of the four fundamental interactions in nature, the other three being the strong interaction, the weak interaction, and gravitation. This force is described by electromagnetic fields, and has innumerable physical instances including the interaction of electrically charged particles and the interaction of uncharged magnetic force fields with electrical conductors.

      0       3

    Comments  

    SYLVESTER MPENDA   Posted on 7 years ago

    Electromagnetism is a phenomena of induced Electromotive force in a crossed circuit  

    Gerald Mark   Posted on 8 years ago

    electromagnetic induction is the production of electricit from magnetic

    Benjamin Kanyika   Posted on 8 years ago

    Electromagnetism is the effect produced by the interaction of magnetic field and electric field

    Posted 8 years ago in Form 2

    Equilibrium

    Forces in equilibrium

      0       1

    Comments  

    Daudi Kapungu   Posted on 6 years ago

    What kind of discussion my buddy

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