Physics: Questions and Answers

Question 1

How to Determine the Temperature of the Sun without Touching it?

Question 2

Why Do Field Lines NEVER Cross?

Question 3

Why are Field Lines ALWAYS Perpendicular to Conducting Surfaces?

Question 4

How is Torque Defined?

Question 5

How Does an Electric Dipole Move in the (In)Homogeneous E-Field?

Question 6

What is the Difference Between Orbital and Angular Velocity?

Question 7

What is the Difference Between Differential and Integral Form of Maxwell's Equations?

Question 8

How Does a Barometer Work?

Question 9

What is the Difference Between an Ideal and Practical Voltage Source?

Question 10

What is the Difference Between Gravitational and Inertial Mass?

Question 11

What is the energy of one mole of photons?

Question 12

What is the Difference between a Series and Parallel Connection of Resistors?

Question 13

What is the Difference Between Electric and Magnetic Fields?

Question 14

What is Temperature?

Question 15

How to Calculate the Moment of Inertia of a Rigid Body?

Question 16

How to Calculate Moment of Inertia when the Axis of Rotation does not Pass Through the Center of Mass?

Question 17

What is a Hooke's spring?

Question 18

What is the Difference Between an Ohmic and Non-Ohmic Conductor?

Question 19

Why are lattice vibrations called optical and acoustic?