Static Electricity
Current Electricity
Voltage and Current
Resistance
Power & Energy
100
The law of electric charges dictates that like charges __________ and opposite charges ___________.
What is repel, attract
100
In electron flow model of current electricity, which type of charges move, and in what direction?
What is electrons, from negative to positive.
100
What are the units of potential difference?
What are volts
100
What is the unit of resistance?
What is Ohms
200
If an object loses electrons, it will become ____________ charged
What is positively
200
What object is represented by the circuit symbol below?
What is an ammeter
200
How are voltmeters connected in a circuit?
What is in parallel, across a load/source
200
Resistance changes in series and parallel circuits. Which type of circuit has a higher resistance?
What is a series circuit
300
If an
300
What are the four main components of an electric circuit?
What are a load, source, conductor, and switch.
300
How many milliamperes are in one ampere?
What is 1000
300
If a load measures a voltage of 4V and has 0.2A of current running through it, what is the resistance of the load?
What is 20 Ohms
400
What happens to the strength of electric force as the distance between oppositely charged objects decreases?
What is "decreases".
400
What is the name of an energy source that uses chemical reactions to generate electricity?
What is an electrochemical cell
400
The voltage of bulbs in a series circuit are 1.5V, 0.8V, and 1.2V. What is the voltage of the source?
What is 3.5V
400
A lightbulb has a current of 600mA and a resistance of 110 ohms. What voltage would be measured across the lightbulb?
What is 66 Volts
500
If an electroscope is charged by conduction using a negative rod, what will happen to the leaves of the electroscope when the rod is pulled away?
What is repel each other.
500
What type of circuit is shown below?
What is a parallel circuit
500
The current on the main branch of a parallel circuit is 12A. If the first branch of the circuit measures a current of 9.5A, what is the current on the second branch?
What is 2.5A
500
Are loads resistors? Explain your answer
What is yes. Explanations very.