Question

part 1: guided notes (fill in the blanks)

1. a power strip is an example of a ______ circuit because each device has its own path for electricity.
2. in the energy transfer model, electricity flows from the ____→__→____.
3. a broken (open) circuit means the path is ____ and electricity ____ flow.
4. a short - circuit happens when electricity finds a ____ path with very little ____, which can be dangerous.
5. the ground wire provides a safe path for extra ______.

part 2: study questions
multiple choice

1. which of the following is a parallel circuit?

a) a string of old christmas lights
b) a power strip
c) a simple circuit with one bulb
d) a battery connected directly to a fuse

1. why is a short circuit dangerous?

a) it increases resistance and slows energy transfer
b) it prevents electricity from flowing at all
c) it creates an unintended path that may cause sparks or fire
d) it makes circuits more efficient

1. what does a broken circuit do?

a) stops the flow of electrons
b) doubles the energy flow
c) sends electricity into the ground
d) protects the circuit breaker

Explanation:

Part 1: Guided Notes (Fill - in the Blanks)

1. In a parallel circuit, each device has its own path for electricity. A power - strip is an example of a parallel circuit.
2. In the energy transfer model, electricity flows from the source (e.g., a battery) to the load (e.g., a light - bulb) and then back to the source.
3. A broken (open) circuit means the path is interrupted and electricity cannot flow.
4. A short - circuit happens when electricity finds a low - resistance path with very little resistance, which can be dangerous.
5. The ground wire provides a safe path for extra electricity.

Part 2: Study Questions

Multiple Choice

1. A power strip is a parallel circuit because each outlet on the power strip provides a separate path for electricity. Old Christmas lights are usually in series, a simple circuit with one bulb is just a basic circuit, and a battery connected directly to a fuse is not a parallel circuit. So the answer is b) A power strip.
2. A short - circuit is dangerous because it creates an unintended path that may cause sparks or fire due to the high current flowing through the low - resistance path. It doesn't increase resistance, it doesn't prevent electricity from flowing (in fact, it allows a large amount of current to flow), and it doesn't make circuits more efficient. So the answer is c) It creates an unintended path that may cause sparks or fire.
3. A broken circuit stops the flow of electrons because the path for the electric current is interrupted. It doesn't double the energy flow, it doesn't send electricity into the ground (that's what the ground wire is for), and it doesn't protect the circuit breaker. So the answer is a) Stops the flow of electrons.

Answer:

Part 1: Guided Notes (Fill - in the Blanks)

1. parallel
2. source; load; source
3. interrupted; cannot
4. low - resistance; resistance
5. electricity

Part 2: Study Questions

Multiple Choice

1. b) A power strip
2. c) It creates an unintended path that may cause sparks or fire
3. a) Stops the flow of electrons