Magnets and Electricity Flashcards
Grade 4 · Science · Flashcards
Study key vocabulary for magnets, circuits, conductors, and insulators.
Flashcards
- Magnet
- An object that produces a magnetic field and attracts iron, nickel, or cobalt
- Magnetic field
- The invisible area of force surrounding a magnet
- Magnetic poles
- The north and south ends of a magnet where force is strongest
- Attract
- To pull toward — opposite magnetic poles attract each other
- Repel
- To push away — like magnetic poles repel each other
- Conductor
- A material that allows electricity to flow through it (e.g., copper, aluminum)
- Insulator
- A material that blocks electricity from flowing (e.g., rubber, plastic, wood)
- Circuit
- A complete closed path that allows electricity to flow
- Open circuit
- A broken circuit where electricity cannot flow
- Electromagnet
- A magnet made by passing electric current through a coil of wire
- Electric current
- The flow of electrons through a conductor
- Battery
- A device that stores chemical energy and converts it to electrical energy
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