It's Electric!
Go Ahead And Charge Me
Coulomb, More Like Cool-omb
Shock Me Like An
Electric Field
Electric Field
Planetary Trivia
100
What is the fundamental rule of charge?
Opposite charges attract, and like charges repel
100
What method of charging occurs between dissimilar insulators?
Charging by Friction
100
What is the metric system unit for charge?
Coulomb
100
How are electric field lines drawn? (3 rules, 100pts each)
1. Lines are drawn away from positive and toward negative.
2. Line density indicates field strength.
3. Lines do not cross.
100
This former planet barely got through 1/3 of its orbit between its discovery and its demotion.
Pluto
200
Who was the first person to use the words 'positive' and 'negative' in relation to electric charges?
Ben Franklin
200
What type of charging occurs between conductors that are touching?
Charging by Contact
200
When the distance between 2 charged particles is halved, what happens to the Coulomb force between them?
increases x4
200
What are the metric system units for Electric Field strength?
N/C
200
Most of the 'dwarf planets' in the Solar System are far away from the Sun, and get groups together with the abbreviation "TNO's" meaning they are found beyond the orbit of what planet?
Neptune
300
What is the term for an atom that is not neutral?
Ion
300
Why do the 'leaves' of an electroscope separate when a charged object is brought near the electroscope?
Like charges are induced on the 'leaves', and so they repel one another
300
What is the force between the proton and electron in a hydrogen atom, if the distance between them is 5.29x10-11 m?
0.0000000822 N or 8.22x10-8 N
300
Drawn the electric field around a single electron.
See board
300
This beautiful planet experienced some global catastrophe that set it spinning in the opposite direction from all other planets in the Solar System, and the Sun.
Venus
400
2 protons are placed next to each other and released. Describe their motion, specifically
They accelerate away from each other
400
Why does a thin stream of water bend when in the presence of a strong enough electric field?
Polarization - water molecules line themselves up according to the field due to being polar
400
D A I L Y
D O U B L E
400
Draw the electric field between a single positive and single negative charge near each other.
See board
400
Jupiter is famous for its Giant Red Spot - a storm that is 1.5x the size of the Earth - but this other gas giant has a storm 2x the size of the Earth on its north pole that a hexagon shape.
Saturn
500
Why do we never discuss the movement of positive charges on the atomic scale?
The positive charges are protons, which are locked in the nucleus by the strong nuclear force.
500
Why is it safe for a Van De Graaff generator to shock you when it has a potential of over 100,000 Volts?
Only a small amount of charge is moving. A low current is safe.
500
Why are metals good conductors?
Their bonding is such that electrons are free to roam from nucleus to nucleus - a 'sea of electrons'
500
What is meant by 'Electric fields are dipole fields, while gravitational fields are monopole fields.'?
Gravity can only attract, while electric fields can attract or repel.
500
The closest planet in the Solar System to the Earth at any given time can change as all of the planets move through their orbits. Which planet spends the most time, during an average Earth year, being the closest?
Mecury