Science Basics
An observation that has been repeatedly confirmed and for all practical purposes is accepted as "true."
What is a Scientific Fact?
What is a Kilogram?
The study of matter and energy and how it changes.
What is Physics?
This 17th century physicist formulated three laws that describe the way that objects move and interact with forces.
An optical instrument that is used for observing distant objects.
What is a Telescope?
A tentative statement about the natural world leading to deductions that can be tested.
What is a Scientific Hypothesis?
What is the Arithmetic Mean?
This scientist discovered that objects of different mass fall with the same acceleration.
Who is Galileo?
The flow of thermal energy between physical systems due to a temperature difference.
What is Heat?
A physical system of stars, interstellar gas and dust, stellar remnants, and dark matter.
What is a Galaxy?
A descriptive generalization about how some aspect of the natural world behaves under stated circumstances.
What is a Scientific Law?
Variations due to noise or technological limitations that affect the precision of real data.
What is Random Error?
The change in position over the change in time.
What is Average Velocity?
What are waves?
This star is actually a binary system and is the brightest in the night sky.
What is Sirius?
A well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses.
What is a Scientific Theory?
A measuring device that provides a discrete numerical output.
What is a Digital Device?
The tendency for matter to resist changes to its state of motion.
What is Inertia?
This physical theory describes light as discrete packets of energy.
What is Quantum Mechanics?
The minimum velocity required for a rocket to leave the Earth's surface and never return.
What is Escape Velocity?
In an experiment, this is the variable that is manipulated by the experimenter.
What is an Independent Variable?
This fundamental universal constant, along with the definition of a second, is used to define the meter.
What is the speed of light?
The capacity to do work.
The weakest fundamental force.
What is Gravity?
This kind of star is the ultra dense remnant of the core of a massive star that exploded in a supernova. They are typically more massive than the sun but are only a few miles in diameter.
What is a Neutron Star?