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Unit 1
Unit 2
Unit 3
Electrical Circuits
Genius (Double Points)
100
What do we call a factor that changes during a scientific experiment?
a variable
100
How long does it take for the Earth to rotate one time?
Approximately 24 hours (or one day)
100
Which two types of energy are released by the sun?
Heat and light energy
100
What word represents the potential electrical energy in a circuit, i.e. the force of the current?
voltage
100
How many tides are there in one week?
28 tides (i.e. two high tides and two low tides each day making four tides per day, and there are seven days in a week thus, 7 days x 4 tides = 28 tides in a week)
200
Where are you most likely to find sand dunes?
beaches or deserts
200
When it is spring time in Korea, what season is it in Chile?
autumn (or fall)
200
When you sit beside a fire, the hot air from the fire is moving straight upward, yet you still feel the heat from the fire. How then is the heat energy being transferred to you?
It is being transferred via radiation.
200
What happens if you connect the positive end of a power source to the negative end without any resistors?
a short circuit
200
I am huge, and I move slowly along the surface of the Earth. Even solid rock does not stop me. I am not an elephant or a snail. What am I?
a glacier
300
The islands of Hawaii were formed as the result of volcanic activity above a 'hot spot' on the Earth's crust. What kind of rocks would be most common on Hawaii?
igneous rocks
300
What fraction of the Earth's gravity does the moon have?
1/6 (one sixth)
300
What kind of energy is represented by a battery that is not connected to any circuit?
chemical potential energy
300
Which way does electricity flow in a direct current circuit?
from negative to positive charge, or from higher voltage to lower voltage
300
These are the names of gods, but they were also used as names for the first two NASA space programs that put people into outer space. The second put Neil Armstrong and Buzz Aldrin on the moon.
Mercury and Apollo
400
What is it called when layers of sediment fuse together to become sedimentary rock?
cement (or cementing)
400
On the June solstice, where do the the sun's rays shine straight down?
The Tropic of Cancer (or 22 degrees north)
400
If you accidentally touch a saucepan and burn your skin, how was the heat energy transferred?
Through conduction
400
Describe the three important characteristics of a series circuit (note: you must say ALL three)
1. A given electron passes through every resistor 2. Adding resistors to the circuit weakens the current 3. Removing any one resistor will break the circuit
400
Which rock contains small to medium-sized crystals of feldspar, mica, quartz and hornblende?
granite
500
What do minerals, coal and soil have in common?
They are all non-renewable resources.
500
The moon's surface is static, and the Earth's surface is dynamic. what is the main reason for the dynamism of the Earth's surface?
plate techtonics
500
Describe the change in energy form as water starts at the top of a mountain and flows downhill through a turbine in a hydro-electric plant.
Potential to kinetic; kinetic to mechanical; mechanical to electrical
500
Which circuit probably has a stronger current and why? a) series circuit with a 9-volt battery and three light bulbs b) parallel circuit with a 6-volt battery and 10 light bulbs
The answer is b) because even though the series circuit has a higher voltage battery, each new resistor weakens the current. However, the current in the parallel circuit INCREASES with each new resistor (branch).
500
Today is 2nd September and tonight there is going to be a new moon. What will the moon phases be on 6th September and 24th September? What other phenomenon occurs between those two moon phases? (Note: You must answer all three to get the points)
The moon phases are waxing crescent and third quarter, and the autumnal equinox occurs between those two phases.