EWriter Forum

Chemistry

Posted by Thembelihle Dlamini

How do I find matric practicals on organic chemistry (esters)
  • Hello
    Click on Physical Science syllabus.
    Scroll down to Paper 2
    Click General Paper 2
    Answered by V. Gokal


Physics

Posted by Advaan Gobind

How do I find the practicals for momentum?
  • Click Physical Science Grade 12 Syllabus.
    Click General Paper 1
    Answered by V. Gokal


Afrikaans

Posted by Kasi Grey

What is the meaning of "uitvat vir sy stappie" In context: "n mens sou nie se dat ek elke dag skool toe gaan en elke middag Hugo uitvat vir sy stappie nie."
  • Answered by Pending

    If you are unsure about the answer, please allow another user to reply.

Life Sciences

Posted by Kasi Grey

Hello, looking for Life Sciences grade 12 notes/summaries
  • The Mind the Gap series, which is a department of education publication, is quite useful

    The Life Sciences Mind the Gap Study Guide can be downloaded here:
    https://www.education.gov.za/LinkClick.aspx?fileticket=uxQWvGa-ZA0%3d&tabid=670&portalid=0&mid=2498&forcedownload=true

    Other notes can be found here:
    https://archive.org/details/LifeSciencesGrade12Textbooks
    (copy paste link into search bar)


    https://www.education.gov.za/LinkClick.aspx?fileticket=uxQWvGa-ZA0%3d&tabid=670&portalid=0&mid=2498&forcedownload=true
    Please be aware of malicious links that may be posted, the full adress name is pasted here for you to see.
    Answered by saajid amra


Physics

Posted by M.Bradley

How to convert 6600 m/min to m/s ?
  • 60 seconds in a minute
    So divide by 60
    Answered by V. Gokal


Physics

Posted by M.Bradley

How to convert 6600 m/min to m/s ?

  • Please contact us for any inappropriate content.
    Answered by Pending

    If you are unsure about the answer, please allow another user to reply.

Life Sciences

Posted by M.Bradley

How does progesterone and oestrogen play a role in the period of ovulation and menstrual cycle and lutenising hormone,fsh ?

Life Sciences

Posted by Kwazi

whats the difference between the control and the experiment?
  • In an experiment, the control group is the unchanged group and has normal conditions
    whereas the experimental group has one variable changed so we can see the result.
    The experimental group is compared to the normal/ control group

    formal definition: A control group in a scientific experiment is a group separated from the rest of the experiment where the independent variable being tested cannot influence the results
    Answered by saajid amra


Chemistry

Posted by Kwazi

where can i get grade 11 chemistry notes and some examples just like the physichs
  • From the homepage, click on DualView.
    Then choose Physical Science Grade 11.
    Past papers.
    Answered by V. Gokal


Physics

Posted by Kwazi

what exactly guides you when describing the deffraction pattern?
  • All diffraction patterns have the same description. If you use red light light, then red and dark. Blue light, then blue and dark. But with red, the bands are wider since red has a larger wavelength.
    Answered by V. Gokal


Physics

Posted by Kwazi

How can one describe a pattern observed on a Monochromatic light of wavelength 650nm passing through a single slit?
  • A broad central band of bright light is observed, flanked by alternate light and dark bands, getting progressively dimmer.
    Answered by V. Gokal


Technology

Posted by MARIC FLAWS

How does today's technology influence the technology of tomorrow
  • Answered by Pending

    If you are unsure about the answer, please allow another user to reply.

Physics

Posted by Kuzwayo

I would like to know how are black holes created and can they be destroyed.
  • Answered by Pending

    If you are unsure about the answer, please allow another user to reply.

Physics

Posted by M.Bradley

How to master physics questions based on Newton's and work energy .is there any difference between the two ?
  • Yes, a major difference indeed!
    Please click on the Physical Science link from the homepage, and go to those specific topics. You can contact me directly by direct message from the My Messages section. Look for my name.
    Answered by V. Gokal


Social Science

Posted by BAHATI

discus are the roles of mass media in kenya today?
  • Answered by Pending

    If you are unsure about the answer, please allow another user to reply.

Mathematics

Posted by M.Bradley

Help me factorise this equation 2cos^2+4sinxcosx+1=0
  • Hi

    This is answered by a colleague, Mr. S. Deonarain.

    Please contact us for any inappropriate content.
    Answered by V. Gokal


Physics

Posted by Abigail

Does vapour pressure affect dynamic equilibrium.Explain fully
  • yes,according to the Le chatelier's principles,the equilibrium will move(change the position)in order to withstand/reduce the pressure in the system.example,in this case of having more molecules on the right hand side than on the left side,increasing pressure will cause the equestion to move to the left side to balance the pressure molecule and vice-versa
    Answered by enock apwoka


Life Sciences

Posted by M.Bradley

What is the influence of isolating mechanisms?
  • Isolating mechanism is a form of sympatric speciation. (Formation of a new species due to a mechanism of reproductive isolation). This does not allow for the reproduction bet diff species to take place due to: Temporal isolation, courtship behaviour, Adaptations to different Pollinating Agents, prevention of fertilisation because of diff copulatory organs and hybrid infertility.

    PS: will email you more info on it, if I have your email address???

    Answered by Madam Eve


Mathematics

Posted by NOEL

What are some of the basics to approach a hyperbola and parabola function given the graphs drawn in the same axes?
  • Answered by Pending

    If you are unsure about the answer, please allow another user to reply.

Physics

Posted by Mohamed Abbas

Hi Mr gokal.....what's your WhatsApp number
  • Hi
    Cannot put it here.
    Email me.
    Address is at bottom of your worksheets.
    :-)

    Please contact us for any inappropriate content.
    Answered by V. Gokal