Electrical Engineering Review

Where is electric charge located?

• In the empty space within atoms

• In the area surrounding atoms

• In the bonds between atoms

• In the particles that make up atoms

What causes all forms of electricity?

• A battery that provides energy

• The movement of protons

• The movement of electrons

• A battery that separates particles in atoms

How is a charged object able to move other objects from a distance?

• It becomes a battery, supplying electrical energy

• It becomes a magnet with a north and south pole

• It attracts or repels other objects with its electric field

• It sends or receives electrons from other objects

In what way is current electricity like a river?

• In both cases, energy is carried by water

• Electricity wears down metal, like water wears down rock

• Electrons flow through a pathway, like water in a river

• The flow of both electrons and water is controlled by gravity

What are electrons?

• Negatively charged subatomic particles

• Positively charged subatomic particles

• Neutrally-charged subatomic particles

• Negatively charged atoms

Why is static electricity not useful as a power source?

• Because electrons aren't transferred in bursts of static electricity.

• Because all energy is released at once in static electricity.

• Because static electricity is not a real form of electricity.

• Because static electricity only occurs in lightning.

How does rubber differ from most metals?

• Rubber is a good conductor; most metals are good insulators.

• Rubber conducts electrons; most metals conduct protons.

• Rubber is a good insulator; most metals are good conductors.

• Rubber is a good power source; most metals are good conductors.

What device opens and closes an electric circuit?

• A switch

• A power source

• A load

• A current

What type of robot is programmed to perform tasks using an onboard computer or controller?

• Autonomous

• Tethered

• Remote control

When Machines control machines, it is called _____

• local control

• control system

• machine operation

• automation