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    Posted 2 years ago in Form 4

    Thermionic Emission

    Explain the mechanism of cathode Ray tube

      4       0

    Comments  

    Posted 2 years ago in Form 1

    Archimedes

    an instrunment used test the precense of alcohol is called

      1       2

    Comments  

    John Kasele   Posted on 2 years ago

    a breatherlyzer or breatherlyser . all together are answers

    Zainab Ghasia   Posted on 2 years ago

    breathalyzer

    Posted 2 years ago in Form 1

    Pressure

    what is thrust ?

      0       5

    Comments  

    Irene Kessy   Posted on 12 months ago

    is FORCE exerted

    Beatrice Laizer   Posted on 2 years ago

    Ooh, is an upward force exerted by an object

    Renatus Philimon   Posted on 2 years ago

    more explanation pleaz nothing I got{beatrice}

    Beatrice Laizer   Posted on 2 years ago

    An upward force

    Posted 2 years ago in Form 2

    Forces In Equilibrium

    What is the difference between center of gravity and center mass

      0       2

    Comments  

    Johnson Masalamado   Posted on 5 months ago

    Center of gravity is a point where force of gravity is concentrated WHILE center of mass is a point where system of particles appears to be concentrated

    Beatrice Laizer   Posted on 2 years ago

    Center of gravity is the place where weight of a body is concentrated
    Center of mass is the point where mass of a body is concentrated

    Posted 2 years ago in Form 2

    Static Electricity

    What is the fundamental law of static electricity

      0       4

    Comments  

    Laurentmnanka Masero   Posted on 1 year ago

    fundamental law of static electricity states that
    "LIke charge repel Unlike charge attract."

    John Kasele   Posted on 2 years ago

    "like charges repel while unlike poles attract"

    Beatrice Laizer   Posted on 2 years ago

    Like charge repel unlike charge attract

    Cindy Modimo   Posted on 2 years ago

    is the accumulation of electric charge in a region as a result of friction

    Posted 2 years ago in Form 1

    Measurement

    what is volume

      0       6

    Comments  

    Sherylne Mutua   Posted on 1 year ago

    Amount of space occupied by an object

    Beatrice Laizer   Posted on 2 years ago

    Quantity of space an object occupies

    Renatus Philimon   Posted on 2 years ago

    amount of space occupied by an object

    Cindy Modimo   Posted on 2 years ago

    is the quantity of space occupied by an object

    Posted 2 years ago in Form 1

    Measurement

    hi guys can i join

      0       5

    Comments  

    John Kasele   Posted on 2 years ago

    you are welcome

    Beatrice Laizer   Posted on 2 years ago

    Well

    Esther Alfa   Posted on 2 years ago

    Welcome my friend

    GRACE SILA   Posted on 2 years ago

    Sure

    Posted 2 years ago in Form 3

    Thermal Expansion

    what changes takes place on mass,volume and density of water when cooled from four degrees of centigrade to zero degrees of centigrade?

      0       0

    Comments  

    Posted 2 years ago in Form 3

    Thermal Expansion

    define anomalous expansion of water

      0       2

    Comments  

    Beatrice Laizer   Posted on 2 years ago

    Is abnormal expansion of water when it's cool from 4-0°c

    Henry Macharia   Posted on 2 years ago

    When the water behaves unusually in that it contracts when it's temperature raises from0°c to 4°c

    Posted 2 years ago in Form 4

    Waves

    Why is the sound louder in the night than in the day?

      1       2

    Comments  

    Beatrice Laizer   Posted on 2 years ago

    Because during the night the amount of temperature is low

    Fankie Peace   Posted on 2 years ago

    During the day, the sound bends away from the ground; during the night, it bends towards the ground. ... So to summarise, sound is louder at night due to the change in the direction of sound refraction, which is caused by the reversal of the temperature gradient from day to night.

    Posted 2 years ago in Form 4

    Waves

    How does the wind affect the speed of sound in gases?

      2       2

    Comments  

    Goodlucky Mtei   Posted on 2 years ago

    due to the force of the wind

     

    that increases velocity of sound in air

     

    Henry Macharia   Posted on 2 years ago

    Wind blowing in the same direction as sound increases the velocity of the latter

    Posted 2 years ago in Form 4

    Waves

    wave

      0       1

    Comments  

    Happiness Silayo   Posted on 2 years ago

    calculation

    Posted 2 years ago in Form 3

    Measurement Of Thermal Energy

    What is a relationship btn heat capacity and specific heat capacity

      1       1

    Comments  

    Grace Kazungu   Posted on 2 years ago

    Heat capacity of a substance is the amount of heat required to raise the temperature of a given mass of a substance by 1kelvin(K) while specific heat capacity of substance is the quantity of heat required to raise the temperature of 1Kg of the substance by 1C or1K

    Posted 2 years ago in Form 3

    Applications of Vectors

    what is resolulion and meaning of component

      1       2

    Comments  

    Elias Gebron   Posted on 2 years ago

    you are great you girl

    Beatrice Laizer   Posted on 2 years ago

    Is a process of breaking down a vector into two components which are perpendicular to each other

    Posted 2 years ago in Form 2

    Forces In Equilibrium

    what is the definition of forces of equilibrium

      4       2

    Comments  

    Beatrice Laizer   Posted on 2 years ago

    Is a force which cause state of balance of a body

    Fankie Peace   Posted on 2 years ago


    Posted 2 years ago in Form 1

    Archimedes

    hey who can explain to me law of floatation

      0       2

    Comments  

    Beatrice Laizer   Posted on 2 years ago

    A floating body displace it's own weight of the fluid in which it's float

    Zainab Ghasia   Posted on 2 years ago

    states that "a floating body displace its own weight in liquid in which it float"

    Posted 2 years ago in Form 2

    Static Electricity

    what are the factors affecting capacitance.

      0       4

    Comments  

    MARTIN GUNENA   Posted on 7 months ago

    Material of the wire

    Laurentmnanka Masero   Posted on 1 year ago

    1: Areas between the plates.
    2: Dielectric.

    Beatrice Laizer   Posted on 2 years ago

    Area btn the plates
    Dielectric

    Zainab Ghasia   Posted on 2 years ago

    dielectric,distance between plates,

    Posted 2 years ago in Form 1

    Measurement

    Why a piece of solid steel sinks while a steel sphere floats on water?

      0       2

    Comments  

    Beatrice Laizer   Posted on 2 years ago

    Because it's weight is greater than the upthrust

    Juin DEZINAVEL   Posted on 2 years ago

    due to its shape

    Posted 2 years ago in Form 3

    Thermal Expansion

    thermal expansion

      0       1

    Comments  

    VENANCE PAULO   Posted on 2 years ago

    Please can you add any equation about this topic?

    Posted 2 years ago in Form 4

    Waves

    Mention four differences btn mechanical and electromagnetic waves.

      1       0

    Comments  

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