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Feedback Comments on Force

by Ron Kurtus

A total of 162 comments and questions have been sent in. They are listed according to date.

You can read them to further your understanding of the subject.

List of next 10 letters

Country

Forces Why a bicycle keeps rolling? PAKISTAN

Forces and Torque Is a machine that runs on gravity possible? Pakistan

Forces What is the moment of force? Nigeria

Forces and Torque Conversion Factor for Foot-Pounds to Newton-Meters Canada

Forces Amount of force it takes to move an object? USA

Forces Force that slows objects in air England

Forces WHAT A GREAT PLACE TO LEARN USA

Forces This site is amazing TURKEY

Forces Are the units correct? Ireland

Forces What is another name for scale? Canada

Next 10

First 10 letters

Why a bicycle keeps rolling?

Topic: Forces

Question

March 21, 2006

SIR WHEN ANY PERSON DRIVE A BICYCLE.AND WHEN HE STOPS PENDLING THEN BI CYCLE MOVES ITS SELF IS IT MORE OUT PUT THEN IN PUT WHAT U SAY. THANKS

GHULAM - PAKISTAN

10526

Newton's Law of Inertia states that when an object is moving, it will keep moving unless acted upon by a force. The bicycle will keep moving, but it is soon slowed down by the force of friction.

Is a machine that runs on gravity possible?

Topic: Forces and Torque

Question

March 17, 2006

sir my name is mujtaba.in my countary a railway enginner invent a force of gravity engine in 1994. which runs on weight is it possible

ghulam - Pakistan

10483

That is known as a "perpetual motion machine" because it will run forever on no outside power. Unfortunately, no matter how clever such a machine is, it will soon stop because of friction. If such a machine really worked, many countries would now be using it.

What is the moment of force?

Topic: Forces

Question

March 6, 2006

What is the moment of force?

chinedu - Nigeria

10356

Moment of force is the force measured on a lever or wheel. It is the force in Newtons times the distance to the pivot point.

Conversion Factor for Foot-Pounds to Newton-Meters

Topic: Forces and Torque

Question

February 23, 2006

What is the Conversion Factor for Foot-Pounds to Newton-Meters ?
Or Vise Versa ?

10203

To convert from newton-meters to foot-pounds, multiply by 0.7380

Amount of force it takes to move an object?

Topic: Forces

Question

February 13, 2006

How do you solve for the amount of force it takes to move an object?

James - USA

10073

The amount of force needed to move and object depends on what is preventing it to move. If you are moving against gravity, you need a force greater than the weight of the object. If you are moving against the force of friction, you need a force greater than the friction.

Force that slows objects in air

Topic: Forces

Question

January 26, 2006

whats name of the force that slows objects moving through the air?
if 2 forces are equal we say they are?

josh - England

9817

Air resistance is the resistive force that slows down objects in air.
If two forces are equal, they are in equilibrium.

WHAT A GREAT PLACE TO LEARN

Topic: Forces

Question

December 13, 2005

WHAT A GREAT PLACE TO LEARN ON THE INTERNET!

Kayla - USA

9364

I'm glad our site was helping in your leanring process.

This site is amazing

Topic: Forces

Question

December 12, 2005

hi. i really like this site. it is amazing.

it helped me get more information about the forces. and where can i find some practices or problems to solve and then check the answers. THANK YOU.

OZLEM - TURKEY

9354

I am glad that the site has helped you. Best wishes in your studies.

Are the units correct?

Topic: Forces

Question

November 25, 2005

Hi, i have the following question to answer;
I have to calculate the magnitude of acceleration;
Mass is 1.4x10^3kg, and an unbalanced force of 3.6x10^N.

I applied the formula F=mxa.
My answer is 2.6N

Did I have to convert any of the numbers above?
Is my answer correct both mathematically and scientifically.

Thanks.
Bev.

Bev - Ireland

9089

F = m*a or a = F/m
Acceleration is in m/s/s or m/s^2 (meters per second squared)
Assuming you meant F = 3.6x10^3N, a = 2.6 m/s^2

What is another name for scale?

Topic: Forces

Question

November 23, 2005

I would be happier if you could answer a bit quicker, because I have a lab due tomorrow, but I understand if you can't. Is there a proper name for the "scales" that measure force? The word scale seems a bit general.

Thanks.

9076

Force sensor, balance, and force gauge are some other names you can use.

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