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How do atoms and molecules interact with each other?

The atoms in most molecules are held together by strong forces of attraction called chemical bonds. These bonds are...

How does friction affect motion?

Friction can slow things down and prevent stationary things from moving. In a frictionless world, more objects would...

What is the difference between mass and weight?

Mass is a fundamental measure of the amount of matter contained in an object. Weight is a measure of the gravitational...

Does quantum physics disprove classical physics?

Quantum rules allow connections prohibited by classical physics. They showed that two particles, in this case, electrons, ...

How do sound waves interact with matter?

Interactions can occur when waves pass from one medium to another, bounce back like an echo, bend or extend around or...

What are the fundamental laws of physics?

Ohm's law, Newton's laws of motion, Archimedes' principle, Doppler effect, Kirchhoff's law, law of reflection, Ampere's...