Basics of Current
Circuits and Batteries
Forms of Energy
Ohm's Law and Power
Energy and Efficiency
Extra Vocabulary Terms
100
This is the subatomic particle that holds a negative charge.
What are electrons?
100
These two parts represent the electrodes in this wet cell battery.
What are zinc cathode and copper anode?
100
This is the form of energy stored in elements and compounds, such as food, sugar, gasoline, and batteries.
What is chemical energy?
100
This is the unit used for measuring resistance.
What are Ohms? Ω
100
This is the formula to find energy.
What is E = P x t?
100
This device increases or decreases the amount of current in a circuit.
What is a rheostat/variable resistor?
200
What are the types of objects that allow electrons to flow easily and hold onto them loosely or weakly?
What are conductors?
200
This is the type of circuit where one component going out does not make the other components go out.
What is a parallel circuit?
200
This is the device that converts chemical energy into electrical energy in a circuit, also known as a source.
What is a battery?
200
This is the formula to calculate voltage using resistance and current.
What is V = I x R?
200
This is the formula for efficiency.
What is efficiency = (useful energy/total energy) x 100%?
200
These materials holds onto their electrons tightly.
What are insulators?
300
This would happen to the amount of voltage if current increased in a circuit.
What is an increase in voltage?
300
The motor in this diagram represents this general name for a device that converts electrical energy into a different form.
What is the load?
300
This is the energy conversion that happens in a blender.
What is electrical energy -> mechanical energy?
300
This is the formula to calculate power.
What is P = I x V?
300
This is the amount of joules a 250W Gameboy uses if it is being used for 3 minutes. (include units in your answer)
What is 45,000J?
300
This is the energy of charged particles.
What is electrical energy?
400
These are the units used to measure voltage and current.
What are volts and amperes?
400
This is the type of circuit that this diagram represents.
What is a series circuit?
400
These are the energy transformations that happen in a battery operated flashlight.
What is chemical energy -> electrical energy -> light and thermal energy?
400
This is the amount of current in a circuit if you have 3 ohms of resistance and is powered by a 6V battery.
What is 2A or 2 amperes?
400
This is the amount of kWh a toaster oven would use if it used 1500W for one and a half hours. (include units in your answer)
What is 2.25kWh?
400
These are the positive and negative terminals of a battery.
What is the cathode and anode?
500
Current and voltage are related to these two things in a water pipe system. (you must say, "what is ____ for current and what is _____ for voltage?")
What is amount of water for current and water pressure for voltage?
500
The electrons would travel in this direction within this wet cell diagram.
What is through the wires from the copper anode to the zinc cathode?
500
These are the three energy transformations that occur in this simple circuit.
What is chemical energy -> electrical energy -> Light and thermal energy?
500
This is the power of a device that uses 50 V and has a current of 8000mA.
What is 400W?
500
This is the efficiency of a truck if it produces 60 kJ of useful energy from 180 kJ of fuel.
What is 33.33% efficient? (33% is acceptable)
500
The rate at which a device converts energy.
What is power?