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Sc.Ch. 15 Test Quest

Science Ch. 15 Test Questions

What are the ways to make an electromagnet stronger? Add more coils, add a metal bar, add more current
How is a parallel circuit different from a series circuit? A parallel circuit is a circuit that has more than one branch or pathway, and a series circuit has a single pathway.
What is a parallel circuit? A circuit that has more than one branch or pathway.
What are the four common parts of an electric circuit? battery, conductor, resistor and switch
What happens to the current if the switch is left open? The circuit does not make a complete loop, and the current cannot flow.
What are some insulators? rubbler, plastic,cotton, and glass
Name some conductors. Silver, Copper, Aluminum.
Is Rubber a good conductor? No
What is and electrical current? The flow of electric charges through a material.
What happens to an atome when it gains electrons? It becomes negatively charged.
What happens to an atom when it loses electrons? It becomes positively charged.
Created by: Dorsey