Electric
Electric Current
Electrical Circuits
Magnetism
Magnetism and Electricity
100

As in the case of unlike magnetic poles, unlike electric charges ____.

attract 

100

What causes charges to move in a circuit?

Voltage

100

A complete, unbroken path through which electric charges can flow is a (an) ____.

Electric Circuit 

100

Magnetic poles that are alike ____.

repel each other

100

The type of current produced by a battery is ____.

Direct Current

200

Materials that allow the charges of an electric current to move freely through them are called ____.

Conductors 

200

Which type of energy is associated with electric currents?

Electrical Energy

200

A device used to open and close an electric circuit is a (an) ____.

Switch

200

The region around a magnet where the magnetic force is exerted is known as its ____.

Magnetic Field 

200

An alternating current consists of charges that ____.

move back and forth in a circuit

300

The buildup of charges on an object is called ____.

Static Electricity 

300

What three things allow a current to flow through a circuit?

Battery, wires, and voltage difference 

300

A circuit composed of both a series and parallel circuit is called _____.

Complex Circuit 

300

One part of a freely swinging magnet always points ____.

to Earth’s magnetic pole in the Northern Hemisphere

300

Increasing the number of loops in a solenoid will cause the strength of its magnetic field to __________________.

Increase

400

Law that states electric charges can be transferred from object to object, but it cannot be created or destroyed

Law of Conservation of Charge 

400

What type of battery contains two connected plates made of different metals in conducting solution?

Wet Cell

400

In a series circuit with three bulbs, adding another bulb will ____.

make all the bulbs dimmer.

400

The closer together a magnet’s magnetic field lines are, ____.

the stronger the magnetic field

400

A (an) __________________ is a coil of wire that has a current.

Solenoid

500

Atoms become charged through what process?

Gaining or Losing Electrons

500

What three things could increase resistance in an electric current?

make wires thinner, longer or hotter

500

In a parallel circuit with three bulbs, ____.

current from each bulb has its own path

500

A magnetic __________________ is a grouping of billions of atoms that all have magnetic fields lined up in the same way.

domain 

500

A solenoid with a(an) __________________ core is called an electromagnet.

Ferromagnetic

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