What are the 3 basic components of a circuit?

Energy source, Load, Energy Pathway

Battery, Energy source, Energy Pathway

The picture shows an electrical circuit. This circuit is a series circuit because:

The same current flows through all three light bulbs.

Pick the correct sentence.

This circuit will not work because there is no energy source.

This circuit will work because it is a closed circuit.

Energy will freely flow in this circuit.

This circuit will not work because there is no switch.

this circuit is .....?

The cutest little circuit evah!

Which light will be brighter and why?

Bulb B because it has more volts

Bulb A because its circuit is closed

Bulb B because its circuit is closed

Bulb A because it has less volts

Cork has been added to this circuit. Will the light be on?

No, because cork is an insulator

Yes, because cork is a conductor

Yes, because cork is an insulator

Which change will occur in the wire of an electrical circuit that is working properly?

The wire will lose some of its mass.

The wire will form an electric field.

The wire will develop a new crystal structure.

When a battery is attached to a circuit,

the electricity goes around the circuit and back to the battery.

the electricity stays in the battery.

all the electricity empties into the circuit.

some of the electricity goes into the circuit, and the rest stays in the battery.

How does flipping a switch turn on a light?

It completes an electrical circuit.

It breaks an electrical circuit.

Look at the diagram of a simple circuit. What is the function of the part labeled Z ?

provides an energy source for the circuit

causes resistance to electric current

allows a path for the current to flow

When a button is pushed on a battery-operated clock, the time display is illuminated. What process has taken place?

Closing an electric circuit has produced light.

Pressure has been converted to light.

Force has been converted to light.

Opening an electric circuit has produced light.

Irene bought a new house and has decided to rewire it. She wants to be able to turn some lights off and have the others remain lit. What type of circuits should she use and why?

She should use parallel circuits because when one light turns off, the other lights remain lit.

She should use series circuits because when one light turns off, the other lights remain lit.

She should use parallel circuits because when one light turns off, the others turn off, too.

She should use series circuits because when one light turns off, the others turn off, too.

Diagrams of electric fields and magnetic fields often look similar. What is an important difference between electric field lines and magnetic field lines?

Electric field lines start and end on charges, while magnetic field lines form closed-loop paths to and from the poles.

Electric field lines always point away from the object generating the field, while magnetic lines always point toward it.

Electric field lines are close together where the electric field is strong, but magnetic lines are close where the magnetic field is weak.

Magnetic field lines cannot cross, while electric field lines can

An electric current flows in a wire. What is one result?

any nearby magnetic fields are destroyed

nearby magnets lose their strength

the metal of the wire cannot be affected by magnets

Why must every electric circuit have a voltage source, such as a battery?

Without a voltage source, there would be no source of current

Without a voltage source, the resistance would be too high

Without a voltage source, the resistance would be too low

Without a voltage source, there would be no electrons in the circuit

Dave notices that a wire is magnetic and attracts metal objects, What can be concluded about the wire?

an electric current is passing through it

radiation is passing through it

sound waves are passing through it

E and M practice test and review

8th Grade

CCSS covered

Used 13+ times

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55 questions

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MULTIPLE CHOICE QUESTION

1 min • 3 pts

The plastic around the wire is

conductor

insulator

decoration

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the lights are on, the circuit is

closed

open

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the lights are off, the circuit is

closed

open

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

The flow of electricity requires a

complete path

incomplete path

insulated current

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kind of circuit is this?

series

parallel

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?

TRUE

FALSE

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A pathway for electricity to travel is called___________

current

static electrcity

circuit

circle

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E and M practice test and review

The plastic around the wire is

If the lights are on, the circuit is

If the lights are off, the circuit is

The flow of electricity requires a

What kind of circuit is this?

In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?

A pathway for electricity to travel is called___________

__________is an imbalance of electric charges within or on the surface of a material that builds up.

True or False, Lighting is a form of static electricity.

This is an example of a ______ circuit

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