Electricity and Circuits

What is current electricity?

• the flow of water

• the form of energy that exists when charges are able to constantly flow

• the energy generated by wind

• the type of electricity used in cars

What is a conductor?

• materials that allow electricity to flow easily

• materials that block the flow of electricity

• materials that change the colour of electricity

• materials that absorb electricity

What is an insulator?

• materials that allow electricity to flow easily

• materials that block the flow of electricity

• materials that absorb electricity

• materials that change the colour of electricity

What does a resistor do in a circuit?

• increases the amount of electricity flowing

• amplifies the signal

• reduces the amount of electricity flowing

• stores electric charge

What is the purpose of a fuse in a circuit?

• to increase the current flow

• to prevent too much current flow

• to change the direction of electricity

• to store electric charge

Which component can amplify the signal in a circuit?

• fuse

• resistor

• transistor

• capacitor

What is a major advancement made possible by electrical engineers in electronics?

• artificial intelligence that can control devices

• developing circuits with gaps in them

• using insulators as conductors

• reduction in the size of electronic devices

What do electrical engineers design using their understanding of circuits?

• prosthetics

• cars

• buildings

• phones

What has greatly reduced the size of many electronic devices?

• integrated circuits (ICs)

• conductive wire

• insulators

• resistors

What do electrical engineers work on to deliver electricity to homes?

• large power grids

• small circuits

• batteries

• transistors