7. The figure below shows part of a circuit near a battery. The arrow shows the direction of electron flow. Electrons have a charge of -e, where e = 1.6 x 10.19 C +5V If one electron were to pass through the battery in the direction shown, the system would: lose 5 J of electric energy O gain 5 ev of electric energy O lose 5 eV of electric energy O gain 5 J of electric energy 8. A student tests the hypothesis that "Two resistors in series always split the potential difference equally" by constructing the following circuit and measuring the potential difference across each lightbulb with a voltmeter. +5V 10 0 20 0 Which prediction will they make based on their hypothesis about the outcome of this experiment? They will predict that this experiment will disprove their hypothesis. O They will predict that this experiment will support their hypothesis. They will predict that the 200 bulb will have a large potential difference across it then the 100 bulb. O They will predict that the 100 bulb will have a larger potential difference across it than the 200 bulb. O They will predict the potential difference across both bulbs will be equal. 9. Which of the following best explains why astronauts feel lighter on the surface of the Moon compared to on Earth? O There is no atmosphere on the Moon The mass of the Moon is less than the mass of Earth O The radius of the Moon is smaller than the radius of Earth O Astronauts have less mass on the Moon 10. Which bulb is the brightest in the circuit below? All bulbs have a resistance of 100. 10 0 10 0 10 Q 12V O Bulb A O Bulb B O Bulb C O B and C are equally bright and brighter than A 11. Objects with charges -Q and +4Q are fixed at the locations shown in the figure below. Where could you place a third object of charge -20 so that it would remain at rest? +40 O A O O E