Astronomy
Where does the Sun get most of its energy?
Nuclear Fusion
Electric Force Equation
Fe=k(q1q2)/r^2
Density SI unit
kg/m^3
1 J/s is also called...?
We have a magnitude of the gravitational force on an object near the Earth’s surface called what?
Weight
What keeps planets from moving out of a straight line?
Gravitational Force
Solve for G in the Gravitational Force Equation
Fgr^2/m1m2
1 Volt = what?
1 J/C
In most circuits, the moving charges are what?
Electrons
E =
F/q
or
k(Q/r^2)
How long does it take the Moon to complete a full cycle? And what is the cycle called?
It takes about 29.5 days. This cycle is called a lunar month.
Work =
f x d
OR
(qE) x d
1 C/s is also called...?
1 Amp
What are VIRP tables used for?
Analyze the different aspects of a circuit.
What percent of the Sun is helium? And what percent is hydrogen?
Helium - 28%
Hydrogen - 70%
How many high tides and low tides are there in a day?
2 - High
2 - Low
Pressure =
F/A
Pressure SI unit
N/m^2
or
Pa
Is voltage constant in what kind of circuit?
Parallel
How far does light travel in a light-year?
About 9.5 trillion kilometers
If a star is about 5,737 Kelvin, what color would it be?
Yellow
Buoyant Force =
Fb=pVg
SI unit for Electrostatic Force
Newtons
What are voltmeters used to measure?
the potential difference between two points in a circuit
What is the difference between weight and mass?
Your mass is the same no matter where you go in the universe but your weight, on the other hand, changes from place to