PHYS 100

Causality

Cause must always precede the effect

Element

A substance made of atoms, all of which contain the same number of protons

Position Symmetry

The laws of the universe are not different at different locations.

Authority

An accepted source of expert information or advice

Gravity

The force that arises from the interaction of anything with mass

Law

A well-tested theory, so firm as to be unquestioned by science

Existence

The assertion that a world separate and distinct from our minds that actually exists

Force

Any of the four fundamental ways in which elementary particles and bodies can influence each other

Hypothesis

A tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation

Reason

The capacity for logical, rational, and analytic thought; intelligence

Model

A schematic description of a system, theory, or phenomenon that accounts for its known or inferred properties and may be used for further study of its characteristics

Strong nuclear interaction

The interaction between nucleons that holds them together

Time Symmetry

The laws of the universe do not change with time.

Sensory Data

Knowledge obtained through seeing, hearing, touching, tasting, and smelling

electromagnetic interaction

The influence and interactions between positives and negatives (+)(-), applies from the size of atoms to the size of continents

Noncontradiction

two opposing conclusions about nature cannot be right; at least one or both must be wrong