Phy 112 Lab Final Exam Questions &
Answers (Grade A+)
In Lab 1 Electrostatic Forces, you investigated the electrostatic force
between two objects. Why was it not possible to repeat your
measurements several times and then average the results? -
correct answer ✅It was not possible to repeat our measurements
several times because repeating the experiment would
automatically give a new and different data set, since the charge
inevitably would be different. No way to measure the charge being
transferred. weather conditions also affected measurements as the
lab was supposed to be done outside.
water and glass experiment (lab 8: refraction) what did the pins
help you do? -
correct answer ✅see the refraction of light going from air to glass
and air to water
Lab 2 (solenoids): why would leaving the voltmeter on not change
the... -
correct answer ✅if voltmeter is left on, then the needle would
move the opposite side
lab 10 (wavelengths of light) what is the relationship between
wavelength and color? -
correct answer ✅wavelength increases from violet to red
Answers (Grade A+)
In Lab 1 Electrostatic Forces, you investigated the electrostatic force
between two objects. Why was it not possible to repeat your
measurements several times and then average the results? -
correct answer ✅It was not possible to repeat our measurements
several times because repeating the experiment would
automatically give a new and different data set, since the charge
inevitably would be different. No way to measure the charge being
transferred. weather conditions also affected measurements as the
lab was supposed to be done outside.
water and glass experiment (lab 8: refraction) what did the pins
help you do? -
correct answer ✅see the refraction of light going from air to glass
and air to water
Lab 2 (solenoids): why would leaving the voltmeter on not change
the... -
correct answer ✅if voltmeter is left on, then the needle would
move the opposite side
lab 10 (wavelengths of light) what is the relationship between
wavelength and color? -
correct answer ✅wavelength increases from violet to red
