Math Mania
The coefficient in the term '8x'.
What is 8?
An angle equal to 90 degrees.
What is a right angle?
One of four spheres of Earth, which consists of all gases that surround Earth.
What is the atmosphere?
Rules of attraction for magnets state that like poles ____ and opposite poles _____.
What is repel and attract?
The speed of a larger gear is _____ than the speed of a smaller gear.
What is slower?
An acronym used to remember the order of operations.
What is BEDMAS/PEMDAS/PEDMAS?
A triangle's 3 angles will always add up to this.
What is 180 degrees?
Pieces of freshwater glaciers from land that have broken off and now float in the ocean.
What are icebergs?
For combustion to occur, three conditions must be met. There must be an oxidizing agent, a high ignition temperature and _____.
What is fuel?
The component that starts or initiates motion in the system.
What is the driver?
The equation of a line.
What is "y=mx+b"?
A triangle in which 2 sides are the same length and 2 angles are the same.
What is an isoceles triangle?
A way to collect solar energy, these are placed in the sunlight and are used to convert sunlight into electricity.
What are solar panels (photovoltaic cells)?
A chemical reaction performed by plants that uses solar energy, water, and carbon dioxide to produce glucose and oxygen.
What is photosynthesis?
Cutting or tearing a paper is an example of this kind of constraint.
What is shearing?
d=√((x2 – x1)² + (y2 – y1)²)
What is the distance between two points formula?
In a right triangle (a triangle with 1 right angle), this is the side opposite to the right angle. It is also the longest side of a triangle.
What is the hypotenuse?
An area of land in which all lakes and rivers empty into the same body of water.
What is a watershed/catchment area?
Materials that allow electricity to flow through them (like metals).
What are conductors?
A link holds two or more parts of the same technical object together. Every link has 4 basic characteristics. A link either is or is not rigid, removable, complete, and _____.
What is direct?
If Line A has a slope of (1/2) and Line B is perpendicular to Line A, this is the slope of Line B.
What is -2?
The _____ of a data point tells you what percentage of the data falls below that data point.
What is the percentile rank?
Permanently frozen ground that has a temperature of 0 degrees Celsius for at least 2 years.
What is permafrost?
A list that ranks materials according to their tendency to gain or lose electrons due to friction.
What is the triboelectric series?
In this reversible motion transmission system, rotational motion is transmitted from one gear to the other. The gears must be touching for the motion to be transmitted. A potential downside of this system is that the wheels can slip, which can interrupt the transmission of motion. This system is used in record players (phonographs).
What are friction gears?