Physics: Questions and Answers

Do you have a physics question that starts with What, How, Where or Why? Here you will find 34 questions and short but precise answers from different disciplines of physics.

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

How is Torque Defined?

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

What is the Speed of Light?

What is the Difference Between Orbital and Angular Velocity?

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

How Does a Barometer Work?

What are Equipotential Lines or Equipotential Surfaces?

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

What is the Difference Between Gravitational and Inertial Mass?

What is the Gravitational Constant?

Why are Field Lines ALWAYS Perpendicular to Conducting Surfaces?

What is the energy of one mole of photons?

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

What is the Difference Between Electric and Magnetic Fields?

What is the Difference Between Partial and Total Derivative?

What is the Elementary Charge?

What is the Magnetization of a Material?

What is Wavelength?

What is Boltzmann Constant?

What is the Vacuum Permeability (Magnetic Constant)?

What is the Vacuum Permittivity (Electric Constant)?

What is Temperature?

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

What is the Refractive Index?

How do You Determine the Focal Length of a Lens?

What is the Planck's Constant?

Why Can't Electric Field Lines Cross?

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

What is a Hooke's spring?