CH 7 (Electricity) - Section III Quiz

A circuit that branches off into resistors and allows the flow of current even if one of the resistors breaks.

• Open Circuit

• Parallel Circuit

• Closed Circuit

• Series Circuit

This is the type of circuit that will no longer work if one of the resistors burns out.

• Open Circuit

• Parallel Circuit

• Closed Circuit

• Series Circuit

This is a preventive measure to an overheating wire that uses a conductive metal that bends and breaks the circuit if too much current passes over it.

• Fuse

• Capacitor

• Circuit Breaker

• Resistor

• Potentiometer

This prevents the overheating of wires by melting a small wire if too much current passes over it.

• Fuse

• Capacitor

• Circuit Breaker

• Resistor

• Potentiometer

Why is electricity used to power our homes?

• It is easy to transport

• It is easy to change into other types of energy

• It is completely harmless and safe

• We have become very adept (good) at making it

• It makes a nice humming noise as it moves through the walls

This is a circuit with all resistors wired into the one behind it.

• Series Circuit

• Parallel Circuit

• Open Circuit

• Closed Circuit

What is one of the benefits of wiring a circuit in series?

• The amount of voltage needed is very low

• A series circuit uses the least amount of material possible

• If one of your resistors goes out, you can still use the circuit

• There are no benefits to wiring in series, they are the worst

What happens to the total mount of current in the circuit when you add resistors in parallel?

• It increases

• It decreases

• Nothing, it stays the same

• You can't add resistors in parallel, only batteries

Why do homes need safety devices on all of there circuits?

• To keep the circuits in line

• Just in case there is a power surge

• In case lightning hits the house, it will protect all the appliances in the home

• When wired in parallel, adding resistors (appliances) to the circuit increases the current, causing a fire risk

If I have a space heater in my room that is rated at 440 Watts and it is plugged into a 110 V outlet, how much current does the heater draw?

• 48,400 Amps

• 550 Amps

• 330 Amps

• 4 Amps

Tags

NGSS.HS-PS2-5