# Physics

Welcome to the portal about Physics.## New Topics

What is falling faster in a vacuum: A ball or a feather?

Assuming, we have a ball and a feather and drop them next to each other in a vacuum, what would fall faster? The ball or the...

Question | 1 Answer

Assuming, we have a ball and a feather and drop them next to each other in a vacuum, what would fall faster? The ball or the...

Question | 1 Answer

Centripetal Force and Centrifugal Force: What is the Difference?

I have a small problem in my physics lessons. Repeatedly, I confuse the two forces "centripetal force" and "centrifugal force"....

Open Question | 2 Answers

I have a small problem in my physics lessons. Repeatedly, I confuse the two forces "centripetal force" and "centrifugal force"....

Open Question | 2 Answers

Difference between Volt, Watt and Ampere

Can anyone explain the difference between watt, voltage and...

Question | 1 Answer

Can anyone explain the difference between watt, voltage and...

Question | 1 Answer

Local Gravity on the Moon

Everybody knows since the sixth grade that the mean local gravity (gravitational acceleration) on earth is 9.81 m/s² (...

Question | 1 Answer

Everybody knows since the sixth grade that the mean local gravity (gravitational acceleration) on earth is 9.81 m/s² (...

Question | 1 Answer

Local Gravity for different Places and Planets

In this article I would like to contrast the location factor, the local mass difference, the gravitational acceleration or...

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In this article I would like to contrast the location factor, the local mass difference, the gravitational acceleration or...

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Why is the local gravity at the poles greater than at the equator?

The local gravity or the gravitational acceleration is not identical at different places on earth. The biggest difference seems...

Question | 1 Answer

The local gravity or the gravitational acceleration is not identical at different places on earth. The biggest difference seems...

Question | 1 Answer

## New Answers and Comments

**Chemox:**A ball and a feather are falling at exactly the same speed in a vacuum. Normally, you would be right with your assumption that...

Question | What is falling faster in a vacuum: A ball or a feather?

**Square:**The centrifugal force comes from the Latin words centrum = middle and fugere = flee. So, it's fleeing from the...

Question | Centripetal Force and Centrifugal Force: What is the Difference?

**Chemox:**All three terms are related to electricity. Depending on what you want to measure you take one or them. Each are units in which a certain...

Question | Difference between Volt, Watt and Ampere

**Chemox:**Let's say you're in a carousel that's spinning in circles. This is also the place where you as a human being can feel the...

Question | Centripetal Force and Centrifugal Force: What is the Difference?

**Science5000:**The local gravity respectively location factor on the surface of the moon is 1.62 m/s². This makes the same object about six times lighter...

Question | Local Gravity on the Moon

**Science5000:**There are two main reasons for that: The centrifugal force and the equatorial bulge. As we all know, our earth rotates around...

Question | Why is the local gravity at the poles greater than at the equator?

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