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                    <OTText id="b2f853dd-60d6-11de-9642-c37f4184d1a8" text="Complete the analogy: If gravitational potential energy is the work done by gravity on a mass moving a certain distance then electric potential energy is..." />
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                    <OTText id="b499cde1-60d6-11de-9642-c37f4184d1a8" text="Does a material with a higher density of electrons or a lower density produce a greater current under the same voltage?" />
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                    <OTText id="b49a1c07-60d6-11de-9642-c37f4184d1a8" text="Copper and iron have a lot of electrons that can flow freely. When a voltage is applied would that produce a lot of current or a little current? Explain." />
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                    <OTText id="b5d18a9b-60d6-11de-9642-c37f4184d1a8" text="Electric conductivity measures:" />
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                        <OTText id="b5d1b1ad-60d6-11de-9642-c37f4184d1a8" text="How well electrons flow around defects." />
                        <OTText id="b5d1b1ae-60d6-11de-9642-c37f4184d1a8" text="How strongly a material opposes the flow of electrons." />
                        <OTText id="b5d1b1af-60d6-11de-9642-c37f4184d1a8" text="How well electrons flow through a material." />
                        <OTText id="b5d1b1b0-60d6-11de-9642-c37f4184d1a8" text="How strongly electrons are attracted to nuclei." />
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                    <OTText id="b5d1d8c2-60d6-11de-9642-c37f4184d1a8" text="Explain why the current measurements are so low for an insulator." />
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                    <OTText id="b74d2e26-60d6-11de-9642-c37f4184d1a8" text="How does voltage affect the current passing through a material?" />
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                        <OTText id="b74d2e28-60d6-11de-9642-c37f4184d1a8" text="The current is higher when the voltage is higher." />
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                    <OTText id="b74d553c-60d6-11de-9642-c37f4184d1a8" text="Set the voltage to zero and observe both the model and the ammeter. The electrons are moving, but why doesn't the ammeter measure a current?" />
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                    <OTText id="b74da360-60d6-11de-9642-c37f4184d1a8" text="How does resistance affect the current passing through a material?" />
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                        <OTText id="b74da362-60d6-11de-9642-c37f4184d1a8" text="The current is higher when the resistance is higher." />
                        <OTText id="b74da363-60d6-11de-9642-c37f4184d1a8" text="The current is lower when the resistance is higher." />
                        <OTText id="b74da364-60d6-11de-9642-c37f4184d1a8" text="The current is the same regardless of the resistance." />
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                    <OTText id="b74dca76-60d6-11de-9642-c37f4184d1a8" text="Why is the current higher in a material with lower resistance than in a material with higher resistance under the same voltage?" />
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                    <OTText id="bfdcf3fe-60d6-11de-9642-c37f4184d1a8" text="Imagine if the wire to the green resistor was broken at point A. Describe what you think would happen to the movement of the electrons?" />
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                    <OTText id="c3036152-60d6-11de-9642-c37f4184d1a8" text="Based on your experience with the model, explain why a light bulb from a table lamp won't be lit if you connect it to an AA battery." />
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                        <OTText id="c61e840a-60d6-11de-9642-c37f4184d1a8" text="About the same resistance." />
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                    <OTText id="c61eab1d-60d6-11de-9642-c37f4184d1a8" text="If two batteries were serially used in a circuit instead of one, would the electric current be different? Why or why not." />
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                    <OTText id="c61ed231-60d6-11de-9642-c37f4184d1a8" text="According to Ohm's Law, in any electrical circuit, the current increases: (Choose all that apply.)" />
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                        <OTText id="c61ed233-60d6-11de-9642-c37f4184d1a8" text="when voltage increases." />
                        <OTText id="c61ed234-60d6-11de-9642-c37f4184d1a8" text="when voltage decreases." />
                        <OTText id="c61ef945-60d6-11de-9642-c37f4184d1a8" text="when there is an increase in resistance." />
                        <OTText id="c61ef946-60d6-11de-9642-c37f4184d1a8" text="when there is a decrease in resistance." />
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                    <OTText id="c61f9589-60d6-11de-9642-c37f4184d1a8" text="What causes the electric energy to change to light energy in a light bulb?" />
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