Ciphers
Who is the namesake for the first cipher we learned?
Julius Caesar
Black is always what?
Negative
What material is both brittle and transparent?
Glass
What aerodynamic force is important for cars but not planes?
Downforce
Name two renewable energy sources.
Wind, solar, hydro, biomass, geothermal
One cipher needed a shift number to decode it, what did a polyalphabetic cipher need?
Keyword
How many total LEDs could be wired into a Hummingbird box?
5. Three single color, two TRI-color.
What two types of conductivity did we talk about?
Thermal and Electrical
The resistance encountered when an object moves through air is known as what force?
Drag
Name a type of catapult you may have built in 6th grade.
Mangonel, Ballista, or Trebuchet
If I were to shift the word "STEM" into a +1 Caesar Cipher, what would the result be?
TUFN
Name a Hummingbird box input.
Buttons, Light Sensor, Dial Sensor, etc.
What are the units of density?
Mass/Volume (g/cm3, g/mL, etc.)
What's the last thing you do when using the drill press?
Let go of the wood.
Orthographic and Isometric
If I were to shift "I WIN" into a -2 Caesar Cipher, what would the result be?
G UGL
Name a Hummingbird output that is not a single or TRI-color LED.
Servos, sound, shapes, messages, etc.
What is an alloy?
A metal created from two or more metals.
How do you calculate velocity?
For a sphero robot, if a setting of "0" is forward, what's the setting for "left"?
270
What is the technique used to eventually crack the Caesar Cipher called?
Fingerprint or Frequency Analysis
Your code is good. Why won't your servos work?
Battery pack isn't plugged in. Battery pack isn't on. Servo is wired backwards.
The emission of particles caused by the spontaneous disintegration of atomic nuclei is known as what?
Radioactivity
Which of Newton's laws best explains why the CO2 canister can launch the car?
The 3rd Law (equal and opposite reaction)
If I throw a baseball while floating in space, what direction and speed do I travel relative to the baseball?
Backwards and slower than.