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Fourth Grade (Grade 4) Magnetism and Electricity Questions

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Grade 4 Magnetism and Electricity
Magnets have how many poles? What names do they have?
  1. 2, North & South
  2. 4, North, South, East, & West
  3. 2, East and West
  4. 1, North
Grade 4 Magnetism and Electricity
Explain how lighting form.
Grade 4 Magnetism and Electricity
A continuous flow of electricity through a circuit is called           current           electricity. An unbroken circuit is called a(n)                  closed circuit                 .
Grade 4 Magnetism and Electricity
A(n)        motor        is a device that transforms energy into motion.
Grade 4 Magnetism and Electricity
A        thin        copper wire is more resistant to the flow of electricity than a        thick         copper wire.

When you add more batteries in parallel to a circuit containing one bulb, what happens                                         the bulbs brightness remains the same.                                         

It is easier to find a burned out bulb in a circuit that has bulbs connected in a           parallel            than in a circuit with bulbs connected in a series.

The flow of electricity through an object depends on the            material            the object is made of, the       size        of the object,and the             resistance              of the object.

Another name for nonconductor is            insulator             .

The element in an electric heater is made of           nichrome            wire.

A device for making or breaking a connection in a circuit is a            
switch.           

A           terminal            is a point on a battery or bulb that must be touched in order to make a circuit complete.

When a material limits the amount of electricity that can flow through it has              resistance.              

Most circuits in your home are connected in             parallel.            

The part of the bulb that gives off light is the             filament.            
Grade 4 Magnetism and Electricity
            Resistors            are objects that resist the flow of electric current.
Grade 4 Magnetism and Electricity
Electricity will flow through a          closed          circuit. There are no gaps in this circuit. It is also called or referred to as             complete             path. Electricity will not flow through an        open        circuit. There are gaps in this type of circuit. It is also called an              incomplete              path.
Grade 4 Magnetism and Electricity
A            filament            is a thin-coiled resistor that transforms electrical energy into heat and light energy.
Grade 4 Magnetism and Electricity
A(n)                electromagnet                is a coil of wire wrapped around a metal core, such as iron.
Grade 4 Magnetism and Electricity
Electricity Source
  1. provides energy
  2. point at which two lines cross
  3. pathway of electricity
Grade 4 Magnetism and Electricity
Insulator
  1. commonly metal and allows the flow of energy
  2. material that prevents the flow of electricity
  3. way to represent a circuit on paper
Grade 4 Magnetism and Electricity
A(n)                     electric generator                     transforms mechanical energy into electrical energy.
Grade 4 Magnetism and Electricity
Lightning is a(n)             discharge            of static electricity during a         storm        .
Grade 4 Magnetism and Electricity
Open Circuit
  1. complete circuit through which electricity flows
  2. incomplete circuit through which electricity won't flow
  3. material that prevents the flow of electricity
Grade 4 Magnetism and Electricity
Name some ways to stay safe during a lightning storm.
Grade 4 Magnetism and Electricity
Conductor
  1. holds many components
  2. incomplete circuit
  3. material that allows electricity to flow
Grade 4 Magnetism and Electricity
Switch
  1. device used to open and close circuits
  2. metal clip
  3. complete circuit
Grade 4 Magnetism and Electricity
We can show a positive charge as a(n)             plus sign             and a negative charge as a(n)              minus sign             .
Grade 4 Magnetism and Electricity
Only            negative            charges move from one object to another.            Opposite            charges attract each other and        like       charges repel.
Grade 4 Magnetism and Electricity
The          number         of electrical charges on a material is called                      static electricity                     .
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