5F Electrical Energy Transfer

Electric current (Amps) is a measure of ____.

• The net movement of electric charges.

• Static electricity

• Electrical resistance

• Energy

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A material or object that LIMITS OR SLOWS the flow of electrons is a(n)

• Conductor

• Insulator

• Resistor

• Transformer

A material or object that BLOCKS the flow of electrons is a(n) ____.

• Conductor

• Insulator

• Resistor

• Transformer

The image shows which type of circuit?

• Continuous

• Discontinuous

• Series

• Parallel

The image shows which type of circuit?

• Continuous

• Discontinuous

• Series

• Parallel

Most electrical circuits are designed as parallel circuits.  Which of the following is the greatest advantage of a parallel circuit?

• You can control all of the objects with a single switch, no matter where you place it in the circuit.

• You can turn everything off by turning off one object in a room.

• You know when something burns out because everything goes out.

• When something burns out or is turned off it doesn’t affect electrical flow to other objects.

How much current is used by a 120­V refrigerator that uses 650 W of power?

• .18 Amps

• 120 Amps

• 5.4 Amps

• 78,000 Amps

What is a common source for a voltage difference

• Circuits

• Batteries

• Lightning

• Wire

Which of the following is an insulator?

• Copper

• Salt Water

• Silver

• Wood

What is unit is used to measure voltage?

• Ohms

• Volts

• Amperes

• Coulumbs