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Feedback Blog

Each day readers send in questions and feedback concerning the various lessons in the School for Champions website. A total of 15021 letters have been answered.



List of most recent 15 letters

Title

Subject

Section

Country

Can sound waves travel through objects? Physics Sound USA
 
Fields of study for elecrto-optical engineering ElectroOptics Ethiopia
 
Where is Alfred Deakin High School? List Canada
 
Any barriers for becoming a technical writer? Technical Writing USA
 
Send me notes and questions Chemistry Malawi
 
Force of the earth on a girl Physics Gravitation Australia
 
Types of electromagnetics Physics Magnetism India
 
Generating electricity with magnets Physics India
 
Wants good grades like twin sister Grades UK
 
Need to understand Physical Science Physics Kenya
 
Validating the acceleration due to gravity Physics Gravity USA
 
Need basic Physics help Physics South Africa
 
Suggested speaking resource Speaking UK
 
Temperature and organic molecules Chemistry South Africa
 
What if I shoot an attacker? Security Kenya
 

Next 15 letters


Can sound waves travel through objects?

Physics

May 27, 2015

Question

Can sound waves travel through objects

lilly - USA (26032)

Answer

Yes, besides traveling through air, sound travels through materials and objects. For example, you can hear sound from another room as it passes through the wall. Also, you can hear sound underwater.

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Fields of study for elecrto-optical engineering

ElectroOptics

May 26, 2015

Question

Hey sirs, madams good day to you.
I wana to know more of about what specific fields of study are there under elector-optical engineering
and pleas give me explanations about each sub-fields.
Thank U

Assamen - Ethiopia (26031)

Answer

Electro-optical engineering requires knowledge of General Physics, Optics, Mathematics, and various Engineering topics.

In Electro-optical engineering, you may work with optical devices, electrical sources of various types of radiation, and detectors of that radiation. For example, you may need to create infrared radiation and have IR lenses to focus the light, and then be able to detect it.

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Where is Alfred Deakin High School?

List

May 25, 2015

Question

Where is Alfred Deakin High School on the high school list

jay - Canada (26030)

Answer

I added your school to the List of Champion High Schools.

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Any barriers for becoming a technical writer?

Technical Writing

May 24, 2015

Question

I have no engineering degree but have been a maintenance professional, a machinist and designed and built many special purpose machines large and small over a 35 year career. Are there any barriers to me becoming a technical writer? Any certification requirements? Is it possible to do this free lance?

Thanks in advance for any advice!

Larry - USA (26028)

Answer

Consider the companies you've for in the past. Did they have documentation for the various devices or machines, such as repair manuals, user manuals, etc?

If not, perhaps they could use such documentation or someone knowledgeable to work on their documentation. This is a good area for freelance or contract work.

A few large companies may require certification or a degree in writing, but it usually is not a roadblock.

A good place to start and to get information about the business is through the Society for Technical Communication. Find a chapter in your location and check out a meeting. You can also find out about jobs in your area.

Best wishes for success in your new career.

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Send me notes and questions

Chemistry

May 23, 2015

Question

i want u guyz to send me note and questions so that i can answer them all

Alfred - Malawi (26024)

Answer

The best thing to do is to go through the Chemistry lessons and try to answer the Mini-Quiz questions.

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Force of the earth on a girl

Physics

May 23, 2015

Question

The force of the earth on the girl is mg = 9.8 x 50 = 490N

David - Australia (26026)

Answer

Although you can calculate the gravitational force between a person and the Earth, it is easier to use the equation F = mg, which actually gives the weight of the person on Earth.

See: Mass, Weight and Gravity for more information.

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Types of electromagnetics

Physics

May 22, 2015

Question

how many types of electromagnet are?
Can we divide electromagnetism/electromagnet/electromagnetics?
Please send the answer..

Ibrahim - India (26020)

Answer

An electromagnet is a device that creates a magnetic field (or electromagnetic field) from current passing through a wire coil wrapped around an iron core. There are many possible shapes and configurations of electromagnets.

Electromagnetism is the study of the electromagnetic force. Electromagnetics is usually the study of electromagnetic equations.

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Generating electricity with magnets

Physics

May 22, 2015

Question

On what principle does passing a wire through magnetic field works
Sir I am in class 9th and got an assignment to make a project on "Generating electricity with magnets"
Under the following headings
Apparatus used
Principle
Working
Application

Sir can you please help me out.

Thanks

taha - India (26021)

Answer

The Lorentz Force on an electric charge occurs when the charge moves through a magnetic field.

See Magnetism and the Lorentz Force and Moving Electrical Charges Create Magnetic Field to help answer your questions.

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Wants good grades like twin sister

Grades

May 21, 2015

Question

Hi!I recently I got an E in physics, biology and chemistry and I do many past papers. I have a twin and she gets A's and B's in her tests and she hardly revises. Every time I cry my self to sleep as my parents are always nagging me into trying harder as my sister is doing well in school. I really need some advise to how I could ppssibly get good grades. I am starting to give up on life and school and I am starting to stop revising altogether. I just need ur help as I want to become a vet and in order to do thia I need A's in science and I am getting E's. I am in year 9 and we start our GCSE's in year 9

Nihal - UK (26017)

Answer

Sometimes twins have different capabilities and talents. The worst thing to do is to try to compete with your twin. Instead, seek to do the best you can do.

Also, consider what areas in school where you really excel. Your talents may be in other areas than your twin's talents.

Consider the reasons you do not do well in the science classes. Do you understand the material? Do you have trouble with tests? Do you have good study habits? These may be areas in which you can improve.

The fact that you have to study harder than your sister can make you stronger in the long run, especially if you don't give up.

Tell your teachers you would like better grades, and ask them for pointers on how you can improve. In fact, you might even ask your sister if she can give suggestions on how you can get better grades. Any type of advice can only help you.

Don't get discouraged. Even Einstein didn't do well in school. Also, make sure you are aiming in areas where you have the most talent.

I am sure you will be able to excel and reach your dreams as a champion.

I hope these ideas help.

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Need to understand Physical Science

Physics

May 21, 2015

Question

would like to understand physicl science from basics

samuel - Kenya (26018)

Answer

Physical Science consists of the studies of Astronomy, Chemistry, Physics and Earth Science.

See our lessons on Succeed in Understanding Physical Science. They will give the basics in the various science areas.

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Validating the acceleration due to gravity

Physics

May 21, 2015

Question

I am still struggling with gravity.
Has the 9.8 m/s ever been validated with real data?
When you leap out of an aircraft you go from nothing to something as Newton observed with the apple.
But after a very brief period of acceleration you slow the rate of acceleration as you get closer to the Earth.
Drag is real. How did scientists ever validate the 9.8 meter thing?
Bear with me. My last physics class was in 1959 and I only got a C.

Allen - USA (26019)

Answer

The acceleration due to gravity on the Earth is set at about 9.8 m/s^2. This number is an average value, since the force varies in different locations. It has been measured by numerous experiments and compared with the theoretical value.

When an object is dropped, starting at zero velocity, it increases its speed at the rate of 9.8 m/s^2. However, air resistance can slow down the object as it falls. The resistance is a function of the speed of the object.

See Work Done by Gravity Against Inertia and Air Resistance for more information.

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Need basic Physics help

Physics

May 20, 2015

Question

i need physics basics learn it from the scratch i need help im really stressed

letlhogonolo - South Africa (26014)

Answer

See our lessons in Succeed in Understanding Physics. They will give the basics in the various Physics areas.

I hope that helps, and best wishes for success in your studies.

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Suggested speaking resource

Speaking

May 20, 2015

Question

Hi there,

My name is Paige and I work with Celebrity Speaker Associates (CSA), a global provider of motivational speakers.

Having just stumbled across your resources page (http://www.school-for-champions.com/speaking/resources.htm) which includes a section for speakers bureaus I wondered whether you might also consider adding us to your page?

You can learn about what we offer at:

http://www.speakers.co.uk/

Many thanks for your time, and I look forward to hearing from you.

Warm regards,
Paige

Paige - UK (26015)

Answer

Thanks for the suggestion. I added your resource to Speaking Resources, as well as updated other resources.

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Temperature and organic molecules

Chemistry

May 20, 2015

Question

What is the relationship between temperature and the properties of organic molecules?

Banele - South Africa (26016)

Answer

Temperature can determine whether organic molecules are as a gas, liquid, or solid. Also, at certain temperatures, the chemical reactions may occur with other materials. For example, wood will burn or oxidize when the temperature is high enough.

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What if I shoot an attacker?

Security

May 19, 2015

Question

what if i shoot an attacker and dies on spot,what action should i take immediately?

mandela - Kenya (26009)

Answer

If your life was being threatened--or that of your loved ones--it may be necessary to shoot the attacker. If it is simply a case of someone breaking into your house to steal and there is no real threat, it is better to show your weapon and try hold him until the police arrive.

If you kill an attacker, should call the authorities. However, sometimes you would have to prove you were being attacked.

It would be a good idea to check with your police or authorities to find out the proper procedures.

Best wishes. I hope you never get into this situation.

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