Electricity - Circuits 23

Front

Resistance is measured in a unit called the ____.

Back

ohm

Front

Match the following symbol with the correct term: LED, Wire, battery, switch

Back

LED

Front

A ______ Circuit is when electricity is allowed to flow through a path that avoids the resistor or load.

Back

Short

Front

A ___________ is a component that resists the flow of current.

Back

Resistor

Front

What is a disadvantage of using fuses instead of a circuit breaker? Options: You cannot blow a fuse by plugging in too many appliances at once., Compared with circuit breakers, fuses are a newer, easier way to protect circuits., When a fuse burns out, it cannot be used again., A fuse uses an electromagnet, so it shuts off when the current gets too high.

Back

When a fuse burns out, it cannot be used again.

Front

An example of a voltage source is a(n)

Back

battery.

Front

Which of the following is a device designed to open an overloaded circuit and prevent overheating? magnet, resistor, circuit breaker, transformer

Back

circuit breaker

Front

A path that allows only one route for an electric current is called a ____circuit.

Back

series

Front

A circuit that has two or more branches for electrons to follow is a(n) ____.

Back

parallel circuit

Front

A material through which electrons do NOT easily flow is a(n) ____.

Back

insulator