Circuit
In a circuit, what provides the voltage difference to keep the flow of electrons running?
23. battery
______ is related to the force that causes electric charges to flow. This is measured in Volts.
25. voltage difference
The net movement of electric charges in a single direction is an ________________________.
26. electric current
In a battery, a cell consists of two electrodes surrounded by a material called a(n) ________________________.
20. electrolyte
All protons have a ______________________ charge, while electrons have a _____________________ charge.
29. positive, negative
What are the three parts necessary for a circuit?
27. conductor, voltage difference, energy converter
All atoms are held together by __________________________ between protons and electrons.
46. electric force
The relationship between voltage difference, current and resistance is known as __.
28. Ohm's Law
What is the unit for resistance?
39. Ohm
The positive charge on a proton is ______________________ the negative charge on an electron.
32. equal to
In a ________________________, current only has one loop to flow through.
30. series circuit
While the force of gravity seems large, it is actually much ___________________________ than an electric force.
44. weaker
What is the process of connecting a conductor to the Earth to prevent static damage?
21. grounding
_____________________ is the tendency of a material to resist the flow of electrons, changing electrical energy into thermal energy.
48. resistance
The accumulation of excess electric charge on an object is called _________________
34. static charge
______________ contain two or more branches for current to move through.
38. parallel circuits
_________________ are bound more tightly to some atoms and molecules than others.
37. electrons
___ are necessary in any system in which you do not want to disturb the entire circuit.
41. parallel circuits
What is the unit for voltage difference?
42. volts
What does the law of conservation of charge state?
33. Charge can be transferred, but not created or destroyed.
When any part of a series circuit is disconnected, no current can flow through it. This is known as a(n) ___________________
35. open circuit
The electrical force between two particles depends on the _____________________ of the charge and the ________________________ between them
40. strength, distance
When you grab a metal doorknob and see a spark, that is electrons ______.
49. being transferred
Conductors have ________________________________ resistance.
50. very low
The presence of electric charges can be detected by a(n) ______________.
24. electroscope