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Physics
A Level

Convection, conduction and radiation in space

On Earth we notice convection through breathing, conduction through heat and radiation through sunlight. But do we notice these in space? And if not, then why? Let’s make a...

DS
Answered by Daniel S. Physics tutor
12988 Views

What is the standard model?

The standard model is a 'catalogue' of subatomic particles (the smallest building blocks of everything in the universe). It categorises these subatomic particles based on their properties and has pred...

SL
Answered by Scott L. Physics tutor
3381 Views

What is the Centripetal force, and how does it keep objects in circular motion?

The Centripetal Force is not a new force which begins to act on an object as it moves in a circle. It is in fact the result of an imbalance of the forces acting on an object i.e the net f...

SB
Answered by Shaurya B. Physics tutor
11441 Views

Uranium -238 has a half life of 4.5 billion years. How long will it take a 2g sample of U-238 to contain just 0.4g of U-238?

 

RE
13206 Views

What is escape velocity?

This is the minimum initial velocity required to move from a point to infinity in a gravitational field.

Infinity is defined to have...

AP
Answered by Ashkan P. Physics tutor
7288 Views

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