Term
| In the eighteenth century many religious leaders believed that the lightening rod was an attempt to play God with science. What is a proper Christian response to this belief? |
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Definition
| The Bible-believing Christian understands that God is indeed in control of every lightening strike. However, we do not always know why it strikes where it does. It's foolish to say that it is always from judgement, and it's foolish to claim that humans should not try to "tame" lightening to avoid God's judgement. Sometimes God uses seemingly bad things to show us His mercy. |
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Term
Which of the following could not happen when two charged objects touch each other?
- Several seconds pass, and then the objects fly apart.
-The two objects stay together.
-The two objects immediately spring apart from each other.
-All of the above could occur. |
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Definition
| Several seconds pass, and then the objects fly apart. |
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Term
| Two objects will attract each other electrically only if... |
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Definition
| one is positive and one is negative. |
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Term
| An electrical charge is usually produced by the removal or addition of... |
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Definition
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Term
| Charging an object without actually adding or removing electrons is called... |
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Definition
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Term
| A mechanical electroscope cannot detect... |
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Definition
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Term
Which of the following have a low resistance to charge?
-nonconductors
-conductors
-insulators
-semiconductors |
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Definition
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Term
Which of the following is a conductor?
-plastic
-concrete
-wood
-gold |
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Definition
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Term
Which of the following is an insulator?
-rubber
-germanium
-silicon
-lead |
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Definition
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Term
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Definition
| conductors and insulators |
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Term
| Which part of a circuit is designed to turn electricity into another form of energy? |
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Definition
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Term
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Definition
| is opposite the flow of electrons in a conductor. |
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Term
| The unit for potential difference is the... |
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Definition
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Term
| A kilowatt-hour is a unit of electrical... |
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Definition
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Term
| The SI unit of electrical charge is the... |
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Definition
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Term
| A device that uses the law of charges to detect charge is a(n)... |
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Definition
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Term
| Why does lightening flow through a lightening rod instead of the building it is mounted on? |
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Definition
| The lightening rod is a better conductor of electricity than the materials that buildings are made of. |
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Term
| The loss of static charges from a charged object is called... |
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Definition
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Term
| What is the insulator in a Leyden jar? |
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Definition
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Term
| An electronic component that uses induction to shore charge is a(n)... |
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Definition
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Term
| Give two practical applications of static electricity. |
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Definition
| Static electricity is used in electrostatic precipitators and photocopiers. |
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Term
| Describe the movement of electrons through a circuit. |
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Definition
| Electrons flow from an area of higher electrical potential energy (source of charge) in a conductor to a lower point of electrical potential energy (sink). |
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Term
| A complete path from a source of electrons through a conductor and back to an electron sink is called a(n)... |
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Definition
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Term
| What type of current does a battery produce? |
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Definition
| Batteries produce direct current. |
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Term
| How does a photovoltaic cell work? |
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Definition
| When a light ray is absorbed in the semiconductor, its electrons gain enough kinetic energy to jump from their atoms and do work as part of a current. |
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Term
| The ability of a circuit component to hinder the flow of charges is called... |
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Definition
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Term
| If a lamp in your house no longer works and you notice that it has a frayed wire, then it probably has developed a(n)... |
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Definition
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Term
| Be familiar with series and parallel circuits. (Remember the lights in your bedroom.) |
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Definition
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