Each day readers send in questions and feedback concerning the various lessons in the School for Champions website. A total of 15727 letters have been answered. They are listed according to date.
You can read them to further your understanding of the subjects.
|Why are letters used in equations?||Algebra||Nigeria|
|Why were Clinton years not good for honesty?||Education||Congo|
|Materials for levers||Machines||India|
|Real clean web site||Thanks||USA|
|Equation different in textbook||Physics||Waves||India|
|Thank you for this website||Thanks||Physics||Germany|
|Formula without constant and variable||Algebra||UAE|
|When should I write my biography?||Biographies||Congo|
|Registering for online speaking training||Speaking||Nigeria|
|Dog bitten by Pit Bulls||Animal Health||USA|
|Using static electricity to charge phone||Physics||Static Electricity||Egypt|
|Link offered from student||Aging||USA|
|Uses for friction||Physics||Friction||Nigeria|
|Thank you for your website||Thanks||Physics||USA|
Why are letters used in equations?
March 11, 2017
why did they choose to use letter of alphabets or other symbols as a subject of the formular when numbers can still serve and is even easier to be used in rounding up calculation?
Chidi - Nigeria (27935)
Numbers are used in specific cases. The letters of the alphabet are considered variables, such that the equation or formula can be used with any numbers.
See Variables and Constants in Algebra for an explanation.
Why were Clinton years not good for honesty?
March 9, 2017
Why does William Bennett say that the Clinton years were not good years for impressing the virtue of honesty on our kids ?
Lucy - Congo (27934)
Although former President Clinton showed dishonesty during the Clinton-Lewinsky affair, I don't think that Mr. Clinton or people in his administration were basically dishonest.
Mr. Bennett's view of the Clinton years is somewhat biased by his political views, since he is a Conservative Republican and Clinton is a Democrat.
I hope that helps in your understanding. Best wishes for success in your studies.
Materials for levers
March 8, 2017
With what material mechanical lvers are made up of?
And what are the operation of mechanical levers?
Thank you :)
Chinmoy - India (27933)
A lever can be made of any material that is solid and strong enough to withstand a force. This includes some board used to lift an object on a pair of pliers. Look at the examples on the lever pages.
Real clean web site
March 4, 2017
Real clean web site, appreciate it for this post.
TS - USA (27926)
Thanks for your comments. I'm glad the website met your approval.
Equation different in textbook
March 2, 2017
In textbook eq. is given in terms of v, but in your lesson its given in terms of lambda.
Rajendra prasad - India (27919)
The velocity of a waveform--especially for light or sound--is often designated as "c" instead of "v". Lambda represents the wavelength.
You can also rearrange the equation to be wavelength = velocity/frequency.
Also see Doppler Effect Equations for Sound.
Thank you for this website
March 1, 2017
Hi, I only want to say thank you for this website and for keeping it up. It is nice to read some physics that is in the way your website describes the subject.
Shanon - Germany (27916)
I'm glad the material has been useful to you. Best wishes for success in your learning about Physics, as well as other topics.
Formula without constant and variable
March 1, 2017
Using formula without constant and Variable is right or wrong.(4-9/2)square 2 please clear it.thanks
Jamil - UAE (27918)
Just having numbers in the expression is simply an arithmetic exercise. What you have written is (4 - 9/2)^2, which would be (-1/2)^2 = 1/4.
When should I write my biography?
February 27, 2017
Good Day! My name is Gabriel, I am 24 years old and I want to know at what age am I supposed to write my biography?
Gabriel Clef - Congo (27910)
A biography is usually about some other person. An autobiography is what you write about yourself.
Some people keep a journal to write down interesting events in their lives. You can start writing about yourself and activities at any age.
When seeking a job, they often want to know what you have achieved related to the type of work. It is often good to have that written down beforehand.
Registering for online speaking training
February 25, 2017
Greetings! Please how can I register for this free online public speech traning?
Sylvanus - Nigeria (27907)
You do not have to register to use our Public Speaking lessons.
Although you can read about giving a speech, the best way to perfect your skills is by actually practicing speaking in front of a group. A good place to do that is through the Toastmasters Club. See Lighthouse Toastmasters in Lagos, Nigeria for information, as well as the location of other clubs in your area.
I highly recommend Toastmasters as a way to gain speaking skills and to get over any fears you have.
Best wishes on becoming a top-notch speaker.
Dog bitten by Pit Bulls
February 25, 2017
My Pitt got attacked by two other pit bulls. We were sitting down on steps. He has puncture wounds on his chest throat behind his right ear and one on the top of his head and some scratch marks around his mouth. He is laying still and sleeping a lot and would not eat which is one of his favorite things. My question is should he be seen by a vet?
Sue - USA (27908)
You definitely should bring your dog to see a vet as soon as possible. You need to make sure the wounds are not serious and to protect against infection from the bites.
I hope your dog is OK. Best wishes for his complete recovery.
Using static electricity to charge phone
February 24, 2017
if i somehow generated this static electricity, how would i use it for turning on something ?
and how much electricity needed to make a phone charger work for example ?
nada - Egypt (27904)
Static electricity is static and does not move like DC or AC electricity.
Most phone chargers use alternating current (AC) electricity to charge the batteries. However, there are some new chargers that use the wireless electricity signals to charge the batteries.
Static electricity can be used to generate sparks. That might be able to turn something on. But also, the sparks can cause damage to electrical devices.
Link offered from student
February 24, 2017
My name is Bella Melton, and I tutor middle school and high school students. I am helping a student of mine with a project about the growing problem of substance abuse among the elderly.
Anyway, thank you so much for posting information for seniors on your website. For example, this article (http://www.newbeginningsdrugrehab.org/guide-to-addiction-prevention-for-seniors) that my student Anna found valuable. Anna will surely use it for her project!
She also found this page and thought it would be an excellent addition to your website:
https://addictionresource.com/addiction/substance-abuse-among-seniors/ It’s an article on Addiction Resource that explains the reasons behind the problem of drug abuse among senior citizens.
If you do decide to add that link to your page, please let me know! I would be excited to show Anna that we’re able to give something back!
Bella - USA (27905)
Thanks to you and Anna for the link on substance abuse among seniors. I added the link on Healthy Aging Resources.
Best wishes for success in your class, as well as success for Anna in her project.
February 24, 2017
I was just reading your website on Knowledge Resources. Thanks for sharing that, I learned a lot.
Also, if you're open to suggestions, I think the article below would be a great addition to your list of learning.
How To Study Effectively - Study Tips & Study Skills.
Yes, I wrote it myself. As a teacher, I devote myself to researching study skills. I wish to help every learner all over the world.
Thank you very much for taking the time to read this. Waiting for your review.
Tommy - USA (27903)
Uses for friction
February 23, 2017
List 12 uses of friction and disadvantages of friction
ade - Nigeria (27902)
Thank you for your website
February 22, 2017
I just want to thank you for your website. I'm 68 years old and have mild cognitive impairment. I've always loved science but because of the way my life went, I couldn't get to study it.
However, I have kept up with memorizing subjects throughout my life. Therefore, that part of my mind still works!
I fell in love with particle physics while take astronomy and cosmology in a free library class.
I plan to stick with it until I die!
Thank you again.<
Deborah - USA (27899)
I am glad the material was useful and interesting to you.
It is good to have something you love and want to learn more about it. That also helps your mind to avoid symptoms of aging.
Best wishes to keep learning for a long, long time.
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