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366 Terms
Q: What is electrostatics?
A: The study of stationary electric charges.
Q: Who discovered static electricity by rubbing amber?
A: Thales
Q: What is static electricity?
A: A buildup of electric charge on an object.
Q: What is an electron's charge?
A: Negative.
Q: What is a proton's charge?
A: Positive.
Q: What is a conductor?
A: Material that allows electrons to move easily.
Q: What is an insulator?
A: Material that resists electron movement.
Q: What is an electroscope?
A: A device used to detect electric charge.
Q: Three ways to charge an object?
A: Friction, conduction, induction.
Q: What is charging by friction?
A: Rubbing materials together transfers electrons.
Q: What is charging by conduction?
A: Charge transferred through direct contact.
Q: What is charging by induction?
A: Charge transferred without touching.
Q: What is polarization?
A: Rearrangement of charges within an object.
Q: Why are neutral objects attracted to charged objects?
A: Polarization causes opposite charges to move closer.
Q: What is grounding?
A: Connecting an object to Earth to remove excess charge.
Q: How does lightning form?
A: Charge buildup in clouds causes a sudden electrical discharge.
Q: What is a lightning rod?
A: A metal rod that safely directs lightning to the ground.
Q: What is current?
A: Flow of electric charge.
Q: Formula for current?
A: I = Q/t
Q: Unit of current?
A: Ampere (A)
Q: Unit of charge?
A: Coulomb (C)
Q: What is conventional current?
A: Flow from positive to negative.
Q: Electron flow moves?
A: Negative to positive.
Q: What is voltage?
A: Energy gained or lost per unit charge.
Q: Formula for voltage?
A: V = E/Q
Q: Unit of voltage?
A: Volt (V)
Q: What is energy?
A: Ability to do work.
Q: Unit of energy?
A: Joule (J)
Q: What does an ammeter measure?
A: Current.
Q: What does a voltmeter measure?
A: Voltage.
Q: What happens if voltage increases?
A: Current increases and bulbs become brighter.
🧪 CHEMISTRY FLASHCARDS
Scientists
Q: Who first suggested matter is made of atoms?
A: Democritus
Q: Who believed matter was made of four elements?