Electrical Circuits

Master electrical circuits! This worksheet covers vocabulary, types of circuits, and more. Great science practice!

Vocabulary Matching Match the vocabulary term to the correct definition. Circuit the path in which an electrical current passes Complete Circuit a circuit with no breaks or gaps in the path Incomplete Circuit a circuit with a break or gap in the path Series Circuits multiple circuits that are connected and share a single electrical pathway Parallel Circuits multiple circuits are connected, but each circuit has its own electrical pathway What type of circuit is this? Closed Circuit Open Circuit An Incomplete Circuit Parallel What would happen to this circuit if the switch was opened instead of closed? The bulb will light The bulb will not light The bulb will be dimmer The metal paper clip is used instead of a switch in this example to close the circuit. What physical property of a paper clip makes its use a good plan? It is an insulator It is soluble It is a conductor It is magnetic What type of circuit is shown above? Parallel Circuit Series Circuit Open Circuit Incomplete If a cut is made at the point shown, how many bulbs will light up? 0 1 2 3 You and a classmate find one of these circuit wands in your science class. What do you need to do in order to get it to light up and make noise? Hold only one end of the circuit wand Touch both ends of the circuit wand put one end of the wand in water and the other in sand Pass thewand around the room to charge it Match it! Match each word with its information. energy source provides the power to the circuit (ex: battery) switch used to open or close a circuit conductor allows for the easy passage of electricity or heat insulator resists or stops the passage of electricity or heat load devise being powered in the circuit: Light bulb, bell or motor Why will the bulb not light up in this scenario? The switch needs to be open The battery is dead Yarn is not a conductor of electricity The circuit needs an additional battery Which part of this circuit will not work and why? the battery because it is not connected correctly the bell because it is not connected correctly the light bulb because it is not connected correctly When electricity travels through wires, it always produces - heat or thermal energy nuclear energy mechanical energy light energy Label the parts of a circuit:energy sourceloadswitchconductor energy source load conductor switch Classify the objects by its conductivity. Conductors iron nail paper clip graphite gold ring iron fillings salt water copper penny aluminum foil Insulators plastic cap toothpick cork cotton shirt paper eraser rubber band yarn Label the closed circuit and the open circuit. open circuit closed circuit Label the parallel circuit and the series circuit (BE SURE TO USE CORRECT SPELLING) series circuit parallel circuit Most objects that conduct electricity or heat are made from this material. plastic metal rubber wood The outside of electrical wires often have a layer of insulation to protect the user from being shocked. This protective layer is often made from - flexible woods rigid metals flexible rubber rigid glass How can you tell if the object connected in this simple circuit is a conductor or insulator? The bulb will not light if it is a conductor The bulb will light if it is a conductor The bulb will light if it is an insulator none of these is correct Sort it Out! Separate the conductors from the insulators. Conductor Insulator