History of Science
Module 1
Module 1
All matter is composed of these tiny little units
Atoms
an educated guess
hypothesis
Experiments in which neither the participants nor the people analyzing the results know who is in the control group
Double-blind studies
In using a lever, the weight you are trying to lift is known as this
Resistance
What is the scientific method?
purpose, hypothesis, materials, procedure, results, conclusion
The idea that living organisms can be spontaneously formed from non-living substances
What is Spontaneous generation
What one thing can destroy a scientific law?
Counter-example
Term describing how tightly atoms are packed in a substance
Density
A see-saw is this type of simple machine (be specific)
1st class lever
the length of a straight line that passes down through the center of a circle
What is the diameter
Who discovered the laws of motion?
Newton
Science CANNOT do this...
Prove anything
Definition of a control variable
The variable in an experiment to which all others are compared.
A screw is created from this type of simple machine
Inclined plane
What do we call it when we calculate how atoms are packed together in a substance
Ptolemy's system stating that the earth is at the center of the universe
Geocentric system
Scientist must conform to this
the scientific method
This must be eliminated for objects to fall at the same rate, regardless of their weight or shape
Air resistance
Does a single or double wedge have more MA and why?
Single because a double wedge has twice the height (the more height, the smaller the MA)
A lever where the effort is in the middle
3rd class lever
Who is the father of the Scientific Method?
Robert Grosseteste
What is missing here? ? "All objects regardless of weight or shape fall at the same rate of speed."
"in the absence of air"
Data that depend to some extent on a person's opinion.
Subjective.
Explain the two different MAs for a wheel and axle
Turning the wheel magnifies force
Turning the axle magnifies speed
A device that multiplies or redirects force
a simple machine