Atoms and Subatomic Particles
Static Electricity
Current Electricity
Circuits
Ohm's Law
Miscellaneous
100
What type of subatomic particles are negatively charged?
Electrons
100
What type of electric force occurs between unlike charges?
Attractive force
100
What are the two different types of current electricity?
Alternating current and direct current
100
What are the 4 basic parts of a circuit?
1. Battery
2. Switch
3. Load
4. Conductor
100
What is the mathematical formula for Ohm's Law?
V=I x R
100
Give an example of 1 Insulator and 1 Conductor
Insulator: Fur, Ceramic, Wood, Wool
Conductor: Copper, Gold, Silver, Steel
200
What is an atom or molecule with an unequal number of protons and electrons called?
An Ion
200
What are the 3 laws of static electricity?
Like charges repel
Unlike charges attract
Charged objects attract neutral objects
200
What direction do electrons travel in a direct current circuit?
From high electron concentration (Negative) to low electron concentration (Positive)
200
What is the difference in electric potential between two points in a circuit?
Voltage
200
What are the units for Voltage, Current and Resistance?
Volts
Amperes
Ohms
200
What type of energy is stored in separated charges? Ex. an electron separated from its positive nucleus
Electric Potential Energy
300
What subatomic particle determines the atomic number of an element?
Protons (Number of protons = the atomic number)
300
How does a balloon gain charge when it is rubbed against your hair?
Electrons jump from hair to the surface of a balloon, giving the balloon a negative charge
300
What is the positive electrode called in an electrochemical cell?
Cathode
300
Draw a series circuit AND parallel circuit with two loads.
then CIRCLE which circuit would more commonly be used in homes
Parallel circuit
300
If a circuit has a resistance of 5Ω and has a current flowing through at 9A, what is the Voltage of the circuit?
45V
300
How many electrons are in a Coulomb of charge?
6.25 x 1018 electrons
400
What type of charge would an atom have if it had more protons than electrons?
Positive
400
What 2 ways can you increase electric force between charged objects?
1. Increase Charge
2. Decrease the distance between them
400
What device can generate electrical energy from the chemical reactions occurring within it?
Electrochemical Cell
1/2 Points for Battery which is a combination of 1 or more electrochemical cells
400
Why did this circuit catch fire?
No resistance in one of the complete "pathways"
400
TRUE or FALSE:
Voltage and Current are indirectly proportional
False
400
Do the arrows on this diagram show conventional current or electron flow?
Conventional current
500
What word describes "the degree to which an element tends to gain electrons and form negative ions in chemical reactions"?
(Tough one! Hint: Was mentioned with regards to the electrodes in the water battery lab)
Electronegativity
500
What is the word used to describe the creation of the temporary charge separation shown below? 
Polarization or Charging by Induction
500
Who discovered the electrochemical cell?
Alessandro Volta
500
For this Series circuit what does Vin equal?
Series: Vin = V1+V2+V3
500
If you have a simple circuit that measures a Voltage of 24V and a Current of 6A, What is the resistance of the circuit?
4Ω
500
What is Silicon, Germanium and Selenium an example of?
A Semiconductor