Every electric device you use, whether it is plugged in or works from a battery, is part of an _____ _____
What is electric circuit
100
True or false: an open circuit turns on a fan.
What is false. A closed circuit completes the pathway and allows electrons to flow to the load (fan).
100
True or false: a series circuit can only have one load.
What is false. A series circuit can have more than one load.
100
We use a _______ to start or stop the flow of electricity in a circuit.
What is a switch
100
What is a parallel circuit?
A parallel circuit is an electric circuit with more than one complete pathway for electrons to follow. If you remove one load from a parallel circuit, the electricity can still flow to other loads.
200
How does flicking a switch on your wall make the light go on and off?
What is turning the switch on, closes the circuit and activates the load (light bulb)
200
Explain how a switch in a circuit works.
A switch is a device that closes or opens the circuit to start or stop the flow of electricity.
200
True or false: a series circuit can have more than one source (battery).
What is true. A series circuit can have more than one source. As long as it's on one continuous loop there can be more than one source.
200
When electricity flows through a closed circuit in excessive amounts, the _________________ will stop the flow and reduce the danger
What is breaker or fuse
200
Series or parallel: if the circuit is opened at one point, current with continue to flow through the other paths of the circuit.
What is parallel
300
What material is a circuit pathway best made of?
What is any conductor (metal)
300
What is an electrical hazard?
A hazard is when electricity flows through a closed circuit in a way that's not controlled or safe.
300
Explain why electrons flow from the negative terminal of the battery to the positive terminal.
Electrons are negative. The electrons repel like charges (negative terminal) and this force moves the electrons to the positive terminal because opposite charges attract.
300
What is the amp in each resistors of a circuit connected in parallel at 3 ohms and 8 ohms, with a potential difference of 9?
What is 3 amps and 1.125 amps respectively
300
Series or parallel? As more batteries are added in series, the lights get brighter. The voltage increases at each light as batteries are added.
What is series
400
What is a source of electric energy?
A source provides a push that causes electrons to flow through a circuit (battery, power plant, etc)
400
What is a short circuit? Why do we want to avoid short circuits?
A closed circuit that does not have a useful load. We want to avoid short circuits because they can cause harm such as fires or electrocution.
400
what is the equivalent resistance in a series circuit with resistors measuring 3 ohms, 6 ohms and 8 ohms?
What is 17 ohms!
400
What is potential difference?
What is the term used to describe the size of the push from the source that forces electrons through a circuit AKA voltage.
400
Series or parallel? As more loads are added, the lights get dimmer. The current decreases, uniformly at each light, as loads are added.
What is series
500
What is a load in electrical terms?
A load is any component along the circuit that uses the electricity (i.e. light bulb)
500
What is a series circuit?
A series circuit provides a single pathway for electrons to travel from the source(s) through the load(s).
500
What is the equivalent resistance in a parallel circuit with resistors of 3 ohms, 6 ohms and 8 ohms?
What is 1.6 ohms
500
What is voltage measured in?
What is volts
500
Series or parallel? As more batteries are added, the lights will not get brighter. The voltage does not increase, but the batteries will last longer.