ELECTRICAL CIRCUITS & OHM'S LAW

Unlock the secrets of Ohm's Law! Practice electrical circuits, current, voltage, and resistance.

ELECTRICITY POWERPOINT LINKUSE FOR HELP ELECTRICAL SYMBOLS UNITS Match the symbols with the correct unit. I (A) amps V (V) volts R ohms (Ω) FILL IN THE BLANKS WITH THE APPROPRIATE UNIT OR SYMBOL The unit for current is A ; the symbol for current is I.The unit for resistance is Ω the symbol for resistance is R.The unit for voltage is V; the symbol is V. A _ has only one path for the electricity to travel. series parallel A _ allows you to turn off one light without turning off all the lights. series circuit parallel circuit If you turn off one light in a circuit, all the lights turn off. series circuit parallel circuit The type of circuit that has more than one path for electricity to follow. parallel circuit series circuit SCHEMATIC DIAGRAM Identify the parts of the schematic diagram. Use the following terms:light bulbsswitchbattery switch battery light bulbs Identify the following objects as insulators or conductors. Click on the blank and choose the correct answer from the word bank. MATERIAL CONDUCTOR or INSULATOR? PLASTIC INSULATOR GLASS INSULATOR MERCURY CONDUCTOR SALT WATER CONDUCTOR AIR INSULATOR COPPER PENNY CONDUCTOR If you increase the voltage, the current will... increase decrease stay the same If you decrease resistance, the current will... increase decrease stay the same If the current increases, the resistance will... increase decrease stay the same If the voltage is decreased, the current will... increase decrease stay the same If the current decreases, the voltage will... increase decrease stay the same What will happen to a light bulb in a series circuit if the current is increased? becomes brighter becomes dimmer stays the same What do the symbols represent in the Ohm's Law Triangle? Label the symbols with the correct units for finding current. Use the following terms:Ohmsampsvolts volts amps Ohms How much voltage gives 5 amps of current through a 3 Ω light bulb?V= I x R 1.67v 15 v 2.3v Find the current in a circuit with a 6 v battery and a 2 Ω resistor.V= I x R 3 A 3V 12 A Calculate the resistance of bulb in a circuit that has a 12 volt battery and a current of 3 amps. V= I x R 15 Ω 26 Ω 4 Ω Identify the following as an electrical conductor or insulator. Watch your spelling as you decide which items are conductors or insulators. Use the spellings:conductorinsulator insulator conductor conductor conductor insulator conductor insulator conductor What needs to be done to the following circuit in order for the bulb to light up? What type of circuit is this? plug it into the wall; parallel circuit add a switch, close the switch; series circuit add a switch; series circuit What type of circuit is shown? closed series circuit closed parallel circuit open series circuit Which circuit is a series circuit? Which circuit is a parallel circuit? Label the following circuits as parallel or series. Use the terms:parallelseries parallel series Electricity is the flow of _ through a closed circuit. electrons protons neutrons