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    Posted 3 weeks ago in Form 4

    Electromagnetism

    explain how a non magnet can become a magnet by means of magnetic shielding

      0       0

    Comments  


    Posted 4 weeks ago in Form 1

    Archimedes

    Why a big ship (Oasis of the sea) float on ocean while 100 tsh. coin sinks?

      1       2

    Comments  


    Emmy Anderson   Posted on 1 week ago

    Because ship is large and hallow,,, also weight of the body is less than weight of the water,,,,upthrust is greater than body

    Fankie Peace   Posted on 4 weeks ago

    https://en.wikipedia.org/wiki/Archimedes'_principle

    Posted 4 weeks ago in Form 1

    Measurement

    differenties between mass and weight

      2       5

    Comments  


    Radhia Mwiru   Posted on 4 weeks ago

    Mass is the amount of matter in an object but weight is the force by which the earth pull a body to its centre

    Radhia Mwiru   Posted on 4 weeks ago

    Mass is constant but weight varies with position

    John Marisa   Posted on 4 weeks ago

    Mass is measured by a beam balance while weight is measured by spring balance

    John Marisa   Posted on 4 weeks ago

    Mass is a scalar quantity but weight is a vector quantity

    Posted 1 month ago in Form 4

    Electromagnetism

    Electromagnetism is actually an electro-magnetic concept in which involves the production of magnetic fields by allowing current to flow through a conductor for a certain time. With concepts such as right hand grip rule involved in the explanation process of how magnetic result from the electric field. 

      1       2

    Comments  


    John Marisa   Posted on 4 weeks ago

    When electricity pass to magnetic field it may demagnetize the magnet and this is how it results

    Fankie Peace   Posted on 1 month ago

    gud

    Posted 2 months ago in Form 1

    Pressure

    Why is a tractor designed to have large wheels

      0       5

    Comments  


    Makwaya Nassoro   Posted on 3 weeks ago

    • Because

    John Marisa   Posted on 4 weeks ago

    In order to apply large pressure in pulling objects on the surface

    Radhia Mwiru   Posted on 4 weeks ago

    To avoid sinking due to large pressure exerted with its weight.

    Sylvia Edward   Posted on 2 months ago

    So that it can exert large pressure on the surface

    Posted 2 months ago in Form 1

    Light

    what is the phenomenon of light?

      0       2

    Comments  


    Zaidat Massawe   Posted on 1 month ago

    It can travel on a straight line..

    Sylvia Edward   Posted on 2 months ago

    It can be reflected

    Posted 2 months ago in Form 2

    Simple Machines

    why a screw jack normally have an efficiency less than 50%

      1       2

    Comments  


    John Marisa   Posted on 4 weeks ago

    Friction reduces the efficiency of a machine

    Sylvia Edward   Posted on 2 months ago

    Becouse of friction force

    Posted 2 months ago in Form 2

    Magnetism

    What is magnetic domain theory?

      0       0

    Comments  


    Posted 2 months ago in Form 2

    Current Electricity

    what is electricity?

     

      1       2

    Comments  


    Emanuel Richard   Posted on 2 months ago

    what is instaneous velocity

    Ezekiel Shayo   Posted on 2 months ago

    Is the rate of flow of electric charge

    Posted 2 months ago in Form 2

    Newton

    why does a soldier experience a jerking back as the bullet leaves the gun?

      0       1

    Comments  


    Ezekiel Shayo   Posted on 2 months ago

    I think it's according to third Newton law of motion "in every action of force there is equal and opposite reaction"

    Posted 2 months ago in Form 2

    Temperature

    why hot vapour burns more than hot water?

      0       1

    Comments  


    Emanuel Richard   Posted on 2 months ago

    because water has high specific latent heat of vapourization

    Posted 2 months ago in Form 2

    Temperature

    1. define heat
    2. define temperature

      0       1

    Comments  


    Radhia Mwiru   Posted on 4 weeks ago

    Temperature is the degree of hot ness or coldness of an object,thing or a place

    Posted 2 months ago in Form 3

    0

    How does refrigerator work

      0       0

    Comments  


    Posted 3 months ago in Form 3

    Light

    why Tanzanians are advised to practice birth control and child spacing 

      2       6

    Comments  


    Noah Lazier   Posted on 3 weeks ago

    i think it enable people to have children of whom they can take care of and thus reduce street children

    Radhia Mwiru   Posted on 4 weeks ago

    It helps a country to have a population that it can support

    JOHANESS SIGORY   Posted on 2 months ago

    Think twice

    GRACE MALLEY   Posted on 2 months ago

    in order 4 a country to have development,au sio?

    Posted 4 months ago in Form 3

    Optical Instruments

    what is camera

      0       1

    Comments  


    Fankie Peace   Posted on 4 months ago

    A series of lens to capture light 

    https://s04.flagcounter.com/mini/rzN/bg_FFFFFF/txt_DDDDDD/border_FFFFFF/flags_0/.png

    Posted 4 months ago in Form 3

    Optical Instruments

    what is optical instument

      1       0

    Comments  


    Posted 5 months ago in Form 4

    Electromagnetism

    state laws (1)lenz's law.                                                         (2)faraday's law

     

      2       1

    Comments  


    JOHANESS SIGORY   Posted on 1 month ago

    Lenz's law states that "The induced emf acts to circulate a current in a direction which oposes the change in flux which caused the induced emf"

    Posted 5 months ago in Form 4

    Waves

    Why a duck experiences vertical displacement while in water?

      0       1

    Comments  


    Fankie Peace   Posted on 5 months ago

    interesting question 

    https://s04.flagcounter.com/mini/rzN/bg_FFFFFF/txt_DDDDDD/border_FFFFFF/flags_0/.png

    Posted 5 months ago in Form 1

    Introduction To Physics

    https://www.shuledirect.co.tz/makini

      1       2

    Comments  


    Imamu Kanka   Posted on 2 weeks ago

    Physics is the study of matter in relation to energy

    Radhia Mwiru   Posted on 4 weeks ago

    Physics is the study of the relationship between matter and energy

    Posted 5 months ago in Form 3

    Applications of Vectors

    state the parallelogram law of motion

      2       2

    Comments  


    Imamu Kanka   Posted on 2 weeks ago

    Parallelogram law states that if two vectors represented by two adjacent side of parallelogram in sequences then the diagonol of parallelogram through the common point represent the sum of two vector in both magnitude and direction

    Daniel Mbega   Posted on 4 months ago

    these are physical quantities which have magnitude and direction

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