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How does gravity affect motion?

When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity and velocity, in ...

How do light waves interact with matter?

When a light wave encounters an object, it is transmitted, reflected, absorbed, refracted, polarized, diffracted, or...

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 do electric and magnetic fields interact with each other?

A moving electric charge generates a magnetic field. A magnetic field induces the movement of electric charge, producing...

How do electric and magnetic fields interact with light?

A magnet can also change the direction of an electrical current, a current of electrons. But if you point a magnet at the ...

What is physics in simple words?

Physics is the scientific study of physical phenomena such as the movement of matter, energy and force. It helps us to...