This age saw the first human uses of fire & simple hunting tools.
What is the Stone Age?
100
This form of pollution refers to clouds of exhaust, generally hovering in and over cities.
What is smog?
100
This force, against which concrete is strong, involves pressure against materials, compacting them.
What is compression?
100
In the equation V = I x R, V stands for this.
What is voltage?
100
A variable type used to represent numbers with no decimal portion
What is an integer?
200
This age featured use of a copper-based metal, as well as writing.
What is the Bronze Age?
200
Purchasing expensive filters in order to produce less pollution, despite the lower profits, is an example of this kind of choice, in which one must give up one thing to get another.
What is a trade-off?
200
The basic underlying building blocks of society, this category includes power lines, sewers, roads and subways.
What is infrastructure?
200
In the equation V = I x R, I stands for this.
What is current?
200
This is the result of the calculation "double x = 10.0/4.0;"
What is 2.5?
300
This age, in which towns and cities grew large, stretches all the way from early plows to gunpowder
What is the Iron Age?
300
A legal protection against others using a device which you have invented.
What is a patent?
300
This term describes any means of travel which includes more than one form of transportation.
What is intermodal transportation?
300
This form of energy refers to motion.
What is kinetic energy?
300
This is the result of the calculation "int y = 10/4;"
What is 2?
400
From the French for "re-birth", this age led to scientific developments, including the telescope.
What is the Renaissance?
400
The modification of a species' DNA in order to produce some desired result.
What is genetic engineering?
400
A communications device, such as a radio or television, which takes in a signal and converts it to a form we can perceive.
What is a receiver?
400
It states that the total energy in a system can not increase or decrease. Energy can only change forms.
What is the Law of Conservation of Energy?
400
This symbol changes true to false and false to true
What is ! ?
500
This age, ending less than a hundred years ago, includes the World Wars, steam engines, airplanes, TV & radio
What is the Industrial Age?
500
This term refers to the use of the outputs or results of a system as information to change or regulate the system in the future.
What is feedback?
500
A device in a communications system which takes in some form of information from the world and converts into a transmittable signal.
What is an encoder?
500
This form of energy is converted into heat and light when a wood fire burns.
What is chemical energy?
500
This data structure allows for more than one piece of information to be stored under a single variable name.