12 Questions
What is the change in potential energy defined as?
The work done in going from point a to point b
In what scenario can the potential U at a point be defined?
If the force is conservative
What kind of force is the electrostatic force, and how can it be represented?
Conservative, represented by potential energy
What is the work done in bringing a unit charge from infinity to a distance R from a fixed charge q?
$-qE$
What is the phenomenon called that allows light to travel along a bent fibre optic cable?
Total internal reflection
At what temperature does an object emit red hot light?
Around 800°C
What does the critical angle (θc) obey in the phenomenon of total internal reflection?
$n_1 \sin θ_c = n_2 \sin 90°$
In which way does matter interact with light when it releases energy as light?
Emission
At what temperature does water turn to steam?
373K
What is the unit of work in the International System of Units (SI)?
Joule
What is the mechanical equivalent of 1 calorie in Joules?
4.186 Joule
What is the lowest temperature that has ever been achieved?
10-7 K
Explore the application of Gauss's Law from Coulomb's Law for each little cube, and sum up the results. This quiz delves into the details of electromagnetism and electric potential energy.
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