PHY-112 L Final GCU Exam Questions &
Answers (Grade A+)
Lab 1: Why is it not possible to repeat measurements? (rod and
cloth lab) -
correct answer ✅the charge associated with the lab was not
quantified and the charges were fleeting due to natual humidity in
the air.
Lab 2: why was the textbook placed on top of the paper when
obtaining data? -
correct answer ✅it allowed for the highest level of pressure and
created less pockets of air. This is important because air is a
dialectric and the less air, the less possibility for errors in the
experiment.
Lab 3: How did you find diameter? -
correct answer ✅Using micrometer.
Why is finding diameter important? -
correct answer ✅it allows to find the area.
How would you make R vs A? -
correct answer ✅8 thicknesses of wires, resistance all the same,
measure the wires and ensure they're all the same length.
Answers (Grade A+)
Lab 1: Why is it not possible to repeat measurements? (rod and
cloth lab) -
correct answer ✅the charge associated with the lab was not
quantified and the charges were fleeting due to natual humidity in
the air.
Lab 2: why was the textbook placed on top of the paper when
obtaining data? -
correct answer ✅it allowed for the highest level of pressure and
created less pockets of air. This is important because air is a
dialectric and the less air, the less possibility for errors in the
experiment.
Lab 3: How did you find diameter? -
correct answer ✅Using micrometer.
Why is finding diameter important? -
correct answer ✅it allows to find the area.
How would you make R vs A? -
correct answer ✅8 thicknesses of wires, resistance all the same,
measure the wires and ensure they're all the same length.
