Flashcards
Physics Circuits and Electromagnetism
Cards in this deck (38)
- 1What are electric circuits?Electric circuits are closed-loops or paths, forming a network of electrical components where electrons can flow.
- 2In what type of circuit does the voltage split?in series circuits
- 3In what type of circuit does the voltage remain the same?in parallel circuits
- 4In what type of circuit does the current split?in parallel circuits
- 5In what type of circuit does the current remain the same?in series circuits
- 6Voltage is NOT always EVEN while SPLITTING in (this type of circuit)series
- 7Current is NOT always EVEN while SPLITTING in (this type of circuit)parallel
- 8In a p_____ circuit, the TOTAL RESISTANCE is less than the s__________ r________.parallel, smallest resistor
- 9A________ are installed in S_____ and V__________ are installed in P_________.Ammeters, series + voltmeters, parallel
- 10The LOWER the r_________, the e________ it is for current to flow.resistance, easier
- 11What is current? Provide unit, symbol, and definition.Unit: Ampere (A)
Symbol: I
Rate at which charge flows through a point in the circuit. - 12What is voltage (potential difference)? Provide unit, symbol, and definition.Unit: Volt (V)
Symbol: V
The electric potential energy per coulomb - 13What is resistance? Provide unit, symbol, and definition.Unit: Ohms (Ω)
Symbol: R
Resistance is the opposition to the flow of current. - 14What is the purpose of a fuse?A fuse protects too much current flowing through a device.
- 15All magnets have a N_____ and S_____ pole.North, South
- 16Magnetic field lines come O____ of the N______ pole and go I____ the S_____ pole.OUT of NORTH
INTO the SOUTH - 17The c______ the field lines are together the strong the magnetic field.closer
- 18Voltage in _______ is constant in each branch (V total = V1 = V2 = V3 = …) Current in _______ splits (I total = I1 + I2 + I3 + …)parallel
- 19Resistance of the circuit decreases as resistors are added in what type of circuit? (1/Req = 1/R1 + 1/R2 ...)parallel circuit
- 20Voltage in ______ splits (V total = V1 + V2 + V3 + …) Current in ______ stays the same (Itotal = I1 = I2 = I3 = …)series
- 21In what type of circuit are resistors additive? (R total = R1 + R2 + R3 + …)series
- 22What equation is Ohm's law?V=IR
- 23LIGHT BULBS IN ________ ARE GENERALLY DIMMER THAN IN _________series, parallel
- 24LIGHT BULBS IN _______ ARE GENERALLY BRIGHTER THAN IN _________parallel, series
- 25What is a solenoid?A coiled wire
- 26V = IR Equation can be rearranged to ...I = V/R or R = V/I
- 27Electrons move, but in the direction of ________ charge. Speed of an electron is extremely ______.positive, slow
- 28What are three basic components of a circuit? (HINT: PCL)- a power source (battery)
- a conductor (wire)
- a load (light bulb, motor, etc.). - 29Explain each variable and its unit in P = IV.P = IV, where P is the power in watts, I is the current in amperes, and V is the voltage in volts.
- 30What is a magnet?An object which is capable of producing magnetic field and attracting unlike poles and repelling like poles.
(Aligned magnetized domains) - 31Magnetic poles always exist in ______.pairs
- 32The magnetic force between the two magnets is g________ when the distance between these magnets is l_______.greater, lower
- 33A changing magnetic field creates (i______) an electric field.induces
- 34When magnet is removed from a solenoid, the galvanometer or electric current is n_________.negative
- 35Motors change e_________ energy ⚡️ to m__________ energy ⚙️electrical, mechanical
- 36As the distance between two l____ charges d__________, the potential energy __________.like, decreases, increases
- 37As the distance between two u______ charges i__________, the potential energy __________.unlike, increases, increases
- 38Generators change _________ energy ⚙️ to _________ energy ⚡️mechanical, electrical
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- 9th grade Physics Flashcards on Physics Circuits and Electromagnetism, created by Parlina Rijal on 16/02/2023.
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- Parlina Rijal
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