What is the approximate magnetic declination in Santa Cruz (to the nearest degree with direction)?
13° east
100
Name 3 ferromagnetic elements
Iron, cobalt, nickel, neodymium
100
What are the three bones in the human ear?
stirrup, hammer, anvil
100
Which type(s) of mirror can produce a virtual image?
flat, convex, concave
100
To the nearest degree, at what temperature Kelvin does water freeze?
273 K
200
Where is the current higher: in the wires leading from a power plant into your neighborhood or in the wires leading from an outlet in your home into an appliance?
in the wires leading from an outlet in your home into an appliance
200
Which is a better conductor, water in a lake or water in the ocean?
ocean
200
What are the two types of light-detecting cells in the retina?
rods and cones
200
Which type(s) of lens can produce a real image?
convex
200
Which sensor did your robot use to follow a dark line on the ground?
light sensor
300
What kind of outlets are found near sinks in homes?
GFCI outlets
300
A transformer only works with which type of current?
alternating
300
Which part of the eye is different colors in different people?
iris
300
What property of diamond makes it reflect more light internally than water does?
index of refraction
300
How many times does a 32-gear driving wheel have to turn to get an 8-gear driven wheel to rotate 360°?
1/4 or 0.25
400
How is your home wired (so that if one light bulb goes out, everything else doesn't turn off)?
in parallel
400
An ion is formed when an atom gains or loses what?
electrons
400
A cochlear implant can give some hearing back to people who have a missing or damaged what?
cochlea
400
What type(s) of lenses are in a refracting telescope?
convex lenses
400
What part of the atmosphere reacts with particles from the sun to create the northern and southern lights?
magnetosphere
500
What is the voltage in a circuit that has a current of 8 amps and a resistance of 0.5 ohms?
4 volts
500
What type of lens is in the human eye?
convex
500
Which type of mirror works best to start a fire?
concave
500
What do we call the old kind of TV/monitor that used a big vacuum tube?