lms science test (6th grade)
a science test
Terms
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- magnet
- any material that attracts iron or materials containing iron
- electric force
- the force between objects
- friction
- happens when electrons are whiped from one object to another
- electrical power
- the rate at which electrical energy is changes into other forms of energy
- thermocouple
- a device that converts energy into electrical energy
- static electricity
- electric charge at rest
- cell
- changes chemical energy into radiant or electrical energy
- magnetic pole
- points on a magnet that have opposite magnetic qualities
- photocell
- a device that converts light energy into electrical energy
- electrical insulator
- a material in which charges can NOT move freely
- electric discharge
- the release of electicity stored in a source
- conduction
- happens when electrons move from one object to another by direct contact
- Resistance
- the opposition to the flow of electric charge
- parallel circuit
- a circuit in which loads are connected side by side
- electric field
- the region around a charged object in which an electric force is exerted on another charged object
- series circuit
- a circuit in which all parts are connected in a single loop
- magnetic force
- the force of attraction generated by moving or spinning electric charges
- induction
- happens when charges in an uncharged metal object are rerranged without direct contact with a charged object
- electric motor
- a device that changes electrical energy into mechanical energy
- solenoid
- a coil of wire with an electric current in it
- electrical conductor
- a material in which charges move freely
- electromagnetism
- the interaction between electricity and magnetism
- voltage
- the potential difference between two points
- electromagnet
- made up of a solenoid wrapped around an iron core
- electric current
- the rate at which charges pass through a given point