Forces and motion
Linear equations
Math or science
October Sky
Miscellaneous
100
This law states that an object in motion will still in motion unless acted upon by an external force.
The first law
100
In the equation y=mx + b, the b stands for this.
The y-intercept
100
The chemical formula for baking soda, NaCHO3, contains three of this element.
Oxygen
100
This is the main character's name in the movie.
Homer Hickam
100
If a pitcher starts their pitching motion but stops in order to deceive runners, they have committed this illegal maneuver.
A balk
200
If an object is accelerating, the direction of its force points in this direction.
The direction of acceleration.
200
This term describes the slope of all vertical lines.
Undefined
200
This is the slope of the line through the points (9, 9) and (100, 9)
0
200
This actor plays the main character.
Jake Gyllenhaal
200
Before it was Veterans' Day, November 11 was called Armistice Day in remembrance of the end of this war.
World War I
300
If someone is talking about Force equaling mass times acceleration, they are talking about this law of Newton's.
The second law
300
In our standard equation, we represent slope with this letter.
m
300
This tool allows you to measure the angle between the ground and the top of an object.
Clinometer
300
October Sky takes place in a town built around one of these types of mines.
Coal
300
The character shown here is from which children's show? 
Veggie Tales
400
This force is always perpendicular to a surface on which an object is applying a force.
The normal force
400
To find slope, we find the change in this over the change in x.
y
400
Evaluate y = (1/2)x - 1 for x = 2.
0
400
The boys needed to weld the bottom of their rocket to make one of these - a thing used to funnel the escaping material and boost the rocket.
A nozzle
400
This water-dwelling engineering animal's scientific name is castor canadensis.
Beaver
500
The normal force is a natural consequence of Newton's third law, which states that for any force applied, there is one of these.
An equal and opposite force.
500
We can think of a line as an infinite collection of these.
Points
500
Using one of these household objects will allow gas to build up and then escape from our bottle rockets during the baking soda vinegar reaction.
A cork
500
This rocket scientist was one of Homer's inspirations.
Wernher von Braun
500
According to Einstein's time dilation equation, traveling at the speed of light makes time stretch this amount.
An infinite amount.