IB Physics Glossary
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is the frequency at which an object will vibrate if disturbed. (d)
is the closest point to the eye on which the eye can focus.
Newton's first law of motion
an object remains stationary or remains at a constant velocity if there is no resultant force acting on the object. (s)
Newton's Law of Gravitation
Newton's second law of motion
Newton's third law of motion
when two bodies A and B interact, the force that A exerts on B is equal and opposite to the force that B exerts on A. (s)
a region of zero wave displacement.
A simple nuclear model of the atom consists of a tiny central nucleus containing all the mass and all the positive charge. The nucleus is made up of protons and neutrons. Negative electrons are kept in orbit around the nucleus as a result of the electrostatic attraction between the electrons and the nucleus. Although this simple model helps explain many atomic properties there are reasons why things cannot be this simple.