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Nature of Science
Motion and Cosmos
Newton's Laws
Energy
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100
It is the process of using experiment, observation, and logical thinking to build theories of the natural world.
What is science?
100
It's what should be included with any answer to a computation in scientific calculations (hint -- following the number).
What is a unit (or "unit of measure")?
100
It is the law that relates to objects with no acceleration.
What is Newton's First Law?
100
This is the kind of energy that is released in large quantities as heat and light when a substance is burned.
What is chemical potential energy?
100
It's the kind of motion that describes the appearance of Mars backing up.
What is retrograde motion?
200
They are a way of modeling nature, enabling us to explain why things happen in the natural world from a scientific point of view.
What is a theory?
200
It's how many significant digits this number has: 0.000400 km/ns.
What is three?
200
It is the variable we use to specify a quantity of matter.
What is mass?
200
It is one of the forces present any time one object or material comes in contact with another object or material; and its effect is to oppose any relative motion between the two objects in contact.
What is friction?
200
It is the kind of energy that keeps a grandfather clock ticking.
What is gravitational potential energy?
300
They are an informed prediction about what will happen in certain circumstances; and they are based upon a particular theory.
What is a hypothesis?
300
It can be caused by a number of different factors, including human mistakes, malfunctioning equipment, incorrectly calibrated instruments, or unknown factors that are influencing a measurement without the knowledge of the experimenter.
What is error?
300
It is the unit one gets after dividing Newtons by mass (in MKS units).
What is meters per second squared?
300
It is the unit when Joules is divided by distance.
What is a Newton?
300
It's the form energy is in when there's steam in a boiler.
What is thermal energy?
400
They are the variable deliberately manipulated by the researchers.
What are the explanatory variables?
400
It's about how long Ptolemy's geocentric model was adopted by nearly everyone in the West, including the Christian Church?
What is one thousand years (1000-1400)?
400
It was published when Newton was 44 years old, and it is widely considered one of the greatest works in the history of science.
What is Principia Mathematica ("Mathematical Principles of Natural Philosophy")?
400
It is the equation for calculating kinetic energy.
What is half mass times velocity squared (1/2mv^2)?
400
It was the object in Ptolemy's fourth sphere (in his geocentric model).
What is the sun?
500
It is an experiment where neither the researchers nor the research subjects know which test group (control or experimental) the subjects are in.
What is a double-blind experiment?
500
He figured out some of the major principles of gravity later synthesized by Newton.
Who is Johannes Kepler?
500
It says that everything in the universe pulls on everything else; and it says that gravitational force is proportional to the distance between objects squared.
What is Newton's Law of Universal Gravitation?
500
It is the ratio of the usable energy coming out of a process to the energy that went into the process.
What is efficiency?
500
It is how many cubic centimeters per microsecond are in 27 cubic meters per second.
What is 27?