# Feedback Blog

Each day readers send in questions and feedback concerning the various lessons in the School for Champions website. A total of 16095 letters have been answered. They are listed according to date.

## List of most recent 15 letters

### Country

Speed of sound inside aircraft Sound USA

Calculating simple pendulum Physics Motion Nigeria

Lazy eye History USA

Question Flash USA

Suggested resource Health UK

Suggested Resource from Students Education UK

Unit of force Force USA

Examples of pulse waves Waves Nigeria

Wants to pass a tough class Grades USA

Sound of sea is louder at night Physics Pakistan

Affect of force Force India

Hope you get an "A" Grades USA

Doctors could identify typhoid fever Health USA

Charge a rod through electrostatic induction Static Electricity Nigeria

Next 15 letters

## Speed of sound inside aircraft

#### Sound

November 21, 2019

### Question

Disabled veteran with PTSD, my brain turned on at 5 a.m. today with the idiot question of what is the speed of sound inside an aircraft flying faster than sound. Wide awake now, I assume that the speed is relative to the enclosing vessel, and that the speed of the aircraft is essentially irrelevant. Except possibly at lightspeed ...

Karen - USA (29274)

That is a good question, and you are correct that the speed of sound inside an enclosed aircraft is independent of the aircraft's external speed.

## Calculating simple pendulum

#### Physics

November 20, 2019

### Question

what is the method of calculating simple pendulum

MAUAN - Nigeria (29272)

You can measure the frequency that a pendulum swings with a stopwatch.

To calculate the frequency, you must measure the length of the rod or wire and use the equation: f = [SQRT(g/L)]/2PI.

(See Equations for a Simple Pendulum.

## Lazy eye

#### History

November 14, 2019

### Question

Did you also know both Lincoln and Kennedy had a lazy eye? Just look at the pictures.

Linda - USA (29263)

Thanks for the interesting information.

## Question

November 7, 2019

### Question

Learning builder options/settings. Recapture administrative role.

Jason - USA (29258)

I'm not sure what you are trying to do.

Unfortunately, Adobe Flash is not supported in many browsers. Thus, alternative applications are being used to create animations.

## Suggested resource

November 6, 2019

### Question

Hi,

I love your website! You have great information for people battling addiction. I especially like your Health Resources.

I am writing to you because I work for Abbeycare Foundation. We take pride in offering the most up-to-date and helpful information about addiction. In fact, all of our articles are reviewed by a medical team so that we can make sure we're providing the best information to people looking for addiction help. Would you be interested in linking to some of our most helpful articles and resource pages?

Abbeycare Foundation - https://www.abbeycarefoundation.com

Thank you for your time and I look forward to hearing from you!

Vanessa - UK (29255)

Best wishes for success in your work.

## Suggested Resource from Students

November 6, 2019

### Question

I am Judy from MyAfterSchoolEducation in Brighton, UK. This summer, August was devoted to astronomy and stargazing. Firstly, all students had to do their own research on the solar system to “Make their own solar system” and later to identify and mark as many visible constellations on a printed star map (provided by me).

Among the many resources the kids found online, they really liked your page https://www.school-for-champions.com/education/resources.htm and as a thank you for the time you put to create it, they asked me to share with you the following very useful guide. “Parents guide to our Solar System”, https://www.homeadviceguide.com/parents-guide-to-solar-system/.”

Would you mind adding it on your web site? My students will be thrilled to know that you liked their suggestion.

Judy - UK (29259)

Best wishes to all of them in getting top grades in their studies.

## Unit of force

November 3, 2019

### Question

What is name of unit used to measure force

paul - USA (29252)

The unit of force is the Newton, which equals 1 kg-m/s^2. For small objects, the Dyne can be used. 1 dyne = 1 g-cm/s^2.

I hope that helps.

## Examples of pulse waves

October 22, 2019

### Question

Examples of pulse wave

Ibitoye - Nigeria (29231)

Some examples of pulse waves include thunder, explosions, and a flash of light. However, realize that all pulse waves can consist of smaller wavelets.

## Mass and movement

October 22, 2019

### Question

Why is mass not dependent on how object move

Friction is usually greater when the mass or weight of an object in greater.

See the section on Friction for more explanations.

## Wants to pass a tough class

October 21, 2019

### Question

I need help! I am 68-years-old and for some unknown reason decide to go back to the university and a Post-Master’s degree in Geriatrics and one of the courses is Advance Practice Pharmacotherapeutics. I am struggling - there is so much material and very difficult. I need an 80 yo pass the course and at te moment I have a 75.2 average. How can I better study and retain the material? Please help!

Marlene - USA (29229)

Congratulations on going back to school and seeking an advanced degree, especially in something like Advance Practice Pharmacotherapeutics. It can be tough for young students as well as those who are older like yourself.

It is good that you are looking around for some help in getting through the class.

Certainly, you need to take notes in class and to organize your work and time. Setting aside a certain amount of time to study with no interruptions can help.

Also not that teachers of give hints about what is important and will be in the tests.

If you can, try to get some pointers from your professor about things you are having trouble understanding. Perhaps seek a mentor or some assistance.

Showing that you really want to do well in the class can help.

Best wishes for success in learning the material and in getting a passing grade in this class.

## Sound of sea is louder at night

October 8, 2019

### Question

Why sound of sea is louder at night than day time???

Nahida - Pakistan (29214)

The loudness or amplitude of sound increases with a reduction in temperature. The air above the sea is cooler at night and thus seems louder.

See Sound Seems Amplified Over Water for an explanation.

## Affect of force

October 5, 2019

### Question

If we force the object it will change its shape,size or motion

Zuhair - India (29209)

If you apply a force on an object, you can accelerate the object. But it is also possible for the force to change the shape of an object, such as when you push on a soft object. A force applied in all direction on an object can compress it and change its size.

## Hope you get an "A"

October 4, 2019

### Question

WOw, I hope this throws my teacher off. I'm using this as an essay subject.

Najai - USA (29208)

I hope you get an "A" in your essay.

## Doctors could identify typhoid fever

October 3, 2019

### Question

I've read that doctors could identify typhoid fever by a patient odor strongly resembling that of fresh-baked bread. Typhus victims, on the other hand, have breath with a "peculiar musty odor," according to an old encyclopedia I have.

Paula - USA (29206)

Thanks for the information. It is a shame that the old ways of diagnosis have gone by the wayside.

## Charge a rod through electrostatic induction

#### Static Electricity

September 14, 2019

### Question

How would you charge a rod through electrostatic induction?

Ugochukwu - Nigeria (29177)

If you placed a nonconducting object such as a plastic rod or sphere that has charges on its surface near a metal or conducting object--such as a metal rod--your can induce electrical charges in the rod. Often this effect lasts for a short time, since the charges may be drained off.

## Misc

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