Unit 9 Physical Science Review

Electricity is the movement of ?

• The movement of electrons

• The movement of circuits

• The movement of atoms

• The movement of molecules

Electricity is the movement of ?

• Static electricity is created.

• Electrical energy is converted to mechanical energy.

• Mechanical energy is converted to electrical energy.

Which statement best describes magnetic fields?

• Magnetic fields need a conductor.

• Magnetic fields are always found in insulators.

• Magnetic fields have north and south magnetic poles.

• Magnetic fields must have only positive charges.

What is a closed loop of conductors through which charges flow?

• A wire

• a circuit

• a conductor

• an insulator

Which type of circuit has a string of lights and one light goes out but the others stay lit?

• broken

• short

• series

• parallel

Which term defines a map where the path of current flow is laid out on it?

• circuit breaker

• circuit board diagram

• series circuit

• parallel circuit

How is a conductor different from an insulator?

• A conductor has magnetic fields; an insulator does not have magnetic fields.

• A conductor does not have magnetic fields; an insulator has magnetic fields.

• In a conductor, electric current can flow freely; in an insulator, it cannot flow freely.

• In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.

What does a moving charge experience when it is near a magnetic field?

• static friction

• gravity

• a stationary charge

• a force

How confident are you in taking this test?!

• Very confident

• Somewhat confident

• Not confiedent