Feedback Blog
Each day readers send in questions and feedback concerning the various lessons in the School for Champions website. A total of 16014 letters have been answered. They are listed according to date.
You can read them to further your understanding of the subjects.
List of most recent 15 letters
Title |
Subject |
Section |
Country |
| Permission for research | Grades | Philippines | |
| Offer to post | School for Champions | USA | |
| Convert heat to work | Physics | India | |
| Sources of DC | Electricity | Liberia | |
| I was confused | Senses | USA | |
| Astronomy jobs | Astronomy | South Africa | |
| How can oxygen mix in water? | Chemistry | India | |
| Relationship between magnetic force and electricity | Physics | Magnetism | Nigeria |
| Food box insulation | Physics | USA | |
| Instantaneous velocity and acceleration | Physics | Motion | India |
| Difference between vaporization and sublimation | Physics | Matter | Kenya |
| Magnetic alignment | Physics | Magnetism | Ghana |
| Property in lever classes | Machines | Tanzania | |
| Reducing permanent magnetism | Physics | Magnetism | New Zealand |
| Suggested correction | Religion | USA | |
Permission for research
Grades
November 10, 2018
Question
Good morning;
I will ask permission to the author for my research as my RRL
Who is the author of this?
I hope this message, will be reply
faisal - Philippines (28784)
Answer
You have permission to cite this material provided you include a link to the page.
The author is Ron Kurtus.
Best wishes for success in your research project.
Offer to post
School for Champions
November 1, 2018
Question
Hello,
My name is Bobbi. I would like to submit a post for your website. If there are any special wishes concerning my proposal, I am ready to hear them all. Are you interested in a guest post? Thank you in advance!
Kind regards,
Bobbi
Bobbi - USA (28776)
Answer
Thanks for the offer, but we are not taking submissions at this time. I know that there are a number of blog sites that take submissions, but I don't have a listing of them right now.
Best wishes in getting your material posted. And keep writing every day.
Convert heat to work
Physics
October 31, 2018
Question
Sir please comment my answer "conversion of heat energy into work".from the lesson thermodynamics.
Anjali - India (28775)
Answer
A common way to convert heat energy into work is in an engine. The gas inside the cylinder is heated and expands, thus moving the piston and creating work.
Sources of DC
Electricity
October 29, 2018
Question
Can you help me with five or more examples of the sources of DC?
Mamudu M. - Liberia (28771)
Answer
The primary sources of DC electricity would be a generator or a storage device, such as a battery or a capacitor. There may be variations or different types of batteries or other storage devices.
I was confused
Senses
October 27, 2018
Question
I was very confused and found it not intresting.
matt - USA (28767)
Answer
What the lesson is supposed to point out is that there are more senses than the commonly stated five senses. I'm sorry it was confusing to you.
Astronomy jobs
Astronomy
October 27, 2018
Question
In astronomy how long does it take to get that job and how many years in college
Lindiwe - South Africa (28768)
Answer
You can get some good information from the Astronomical Society of Southern Africa - Astronomy as a Career.
Also see Astronomer Job Descriptions.
Sometimes student internships are available. That is a good was to start.
Best wishes for success in your astronomy career.
How can oxygen mix in water?
Chemistry
October 26, 2018
Question
Water is a polar molecule and oxygen is a non polar molecule ..For aquatic animals they have to get oxygen from water with gills ..Then we can say oxygen mixes with water to from a solution ..How does a non polar solvant mixes with a polar solvation? ??
Uday - India (28766)
Answer
Oxygen molecules can actually slip between the network of water molecules into “pockets” that exist in-between H2O molecules. For a complex explanation see: Predicting oxygen solubility in water.
Relationship between magnetic force and electricity
Physics
October 23, 2018
Question
my question is, what is the relationship between magnetic force and electricity?
Abdulrahman - Nigeria (28756)
Answer
See Moving Electrical Charges Create Magnetic Field. It shows that when electrical charges move, they create a magnetic force field. Likewise, a magnetic force can create electricity. See Basics of Electromagnetism.
Food box insulation
Physics
October 16, 2018
Question
My question is about insulation for the firebox on a food cart I'm building. I want to prevent the outsides of the fire box from getting to hot. I want to enclose the insulation , not sure if that is the best way. I am working with food so I cant have particulates floating. I was going to use a ceramics insulater. Also should I paint the inside of the firebox first ? Flat paint or ? Thank you for your consideration.
Bill - USA (28752)
Answer
I'd like to help you, but for the life of me, I haven't been able to find good information on that. Perhaps checking with other fireboxes might give you some insight.
Best wishes on building your firebox.
Instantaneous velocity and acceleration
Physics
October 15, 2018
Question
what is the difference between instantaneous acceleration and instantaneous velocity?
sona mariam - India (28749)
Answer
Instantaneous velocity is the velocity of an object in motion at a specific point in time, as opposed to the average velocity.
Average acceleration is the change in velocity over a period of time. Instantaneous acceleration is the acceleration of an object in motion at a specific point in time.
Difference between vaporization and sublimation
Physics
October 11, 2018
Question
Differentiate between vaporization and sublimation
Kevin - Kenya (28745)
Answer
Vaporization is the process that occurs when a chemical or element is converted from a liquid or a solid to a gas.
When a liquid is converted to a gas, the process is called evaporation or boiling.
When a solid is converted to a gas, the process is called sublimation. This is what happens with dry ice (frozen carbon monoxide gas).
Magnetic alignment
Physics
October 8, 2018
Question
what is in the iron that makes magnetic substance attracted by it
obed - Ghana (28741)
Answer
It is the alignment of the electrons. See: Factors Determining Magnetic Properties.
Property in lever classes
Machines
October 7, 2018
Question
What is the peculiar property does the effort has in all class levers
Hamis - Tanzania (28740)
Answer
It is the distance from the fulcrum.
Reducing permanent magnetism
Physics
October 6, 2018
Question
If you have a weak permanent magnet and wind a multi turn coil around it and then pass an electrical current through the coil, can you negate the magnet strength of the magnet?
Will a specific current be required to reduce the magnet strength to exactly zero?
Charlie - New Zealand (28738)
Answer
You can demagnetize a permanent magnet by hitting it with a hammer or heating it to a sufficient temperature. Both cases disrupt the alignment of the atoms.
The problem with using a coil is that the atoms can be realigned into a different direction, thus still maintaining the magnetism. The only way to reduce the strength of the magnet is to get some or all of the atoms in random orientation.
Suggested correction
Religion
October 2, 2018
Question
please correct the phrase "The First Truth is that all life is suffering, pain, and misery."
you go on to correctly state "suffering exists" which is more accurate. please correct your initial sentence to be "The First Truth is that suffering, pain, and misery exist." all of life is not suffering. i think it's safe to say that unless a person is tortured from birth, almost every human has moments of joy and happiness. your incorrect sentence is the first search result that pops up in google when using search term "causes of suffering in buddhism" so please be responsible and state the teachings accurately
Edward - USA (28732)
Answer
Thank you for pointing that out. I corrected the phrase and tried to get the right wording in the Four Noble Truths article.
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