AP Physics Circuits 1 Flashcards
Terms : Hide Images [1]
| 9457241242 | lazy electron | electricity is like a lazy electron who doesn't want to go anywhere, when charge is to flow (like a river), the electron doesn't move, but it pushes its neighbor, this process is repeated for the length of the wire | 0 | |
| 9457241243 | current | flow of positive charges in theory but flow of negative charges in real life, a river of electrical energy that moves through a wire, must have a closed continuous loop to work, number of charges that travel per second (Amps) I=q/t | 1 | |
| 9457241244 | battery | voltage (source) (Volts) | 2 | |
| 9457241245 | resistance | impedes current, uses energy (Ohms Ω) | 3 | |
| 9457241246 | ammeter | measures current (Amps) | 4 | |
| 9457241247 | voltmeter | measures voltage (Volts) | 5 | |
| 9457241248 | schematics | a sketch of what a circuit looks like, represents how the current will flow in the circuit, specific types of symbols for sketches | 6 | |
| 9457241266 | conductor symbol |  | 7 | |
| 9457241267 | switch symbol |  | 8 | |
| 9457241271 | lamp symbol |  | 9 | |
| 9457241272 | electric connection symbol |  | 10 | |
| 9457241273 | battery symbol |  | 11 | |
| 9457241275 | voltmeter symbol |  | 12 | |
| 9457241276 | ammeter symbol |  | 13 | |
| 9457241250 | Ohm's law | Ohm defined how current (amps), voltage (volts), and resistance (Ohms Ω) relate | 14 | |
| 9457241251 | V=IR | Ohm's law equation, V=voltage of battery, I=current, R=resistance | 15 | |
| 9457241252 | P=I²R=V²/R=IV | power equation, P=power(watts)=energy/time, I=current (Amps), R=resistance (Ω), V=voltage (Volts) | 16 | |
| 9457241254 | parallel circuits | current has multiple paths to follow, broken circuit may not stop electrical flow, voltage is same throughout each resistor, current adds for each | 17 | |
| 9457241255 | series circuit | current has only one path to follow, broken circuit stops all flow of electricity, current is the same through each resistor, voltage adds for each | 18 | |
| 9457241256 | voltage in circuits | parallel: V=V1=V2=V3=... (voltmeters only for voltage) series: V=V1+V2+V3+... | 19 | |
| 9457241257 | current in circuits | parallel: I=I1+I2+I3+... (increases w/ additional resistors) series: I=I1=I2=I3=... (decreases w/ additional resistors, ammeters only) | 20 | |
| 9457241258 | resistance in circuits | parallel: 1/R=1/R1+1/R2+1/R3+... (decreases w/additional resistors) series: R=R1+R2+R3+... (increases w/ additional resistors) | 21 | |
| 9457241264 | direct current | flows 1 direction only, defined by Ohm's law | 22 |