Physics Lab Experiment 2 ACTUAL UPDATED QUESTIONS AND CORRECT
ANSWERS
0.1g to 0.01 g What is the leadt count of measurment instrument, and how is it relayed to the
number of significant figures of a measurment reading?
Weight, because a lab balance measures an unknown Does a lab balance measure weight or mass?
mass against an unknown mass
To help with the reading on the fractional part of the What is the function of the vernier scale on the vernier caliper? Does it extend
scale division which increases precision accuracy or precision?
Positive zero errors Right side of the main scale zero
Negative zero errors To the left side of the main scale zero
It allows slippage of the screw mechanism when a small What is the purpose of the ratchet mechanism on a micrometer caliper?
constant force is excerpted on the jaw
One complete rotation of the thimble moves through 0.5 Explain how reading from 0.0 through 1.0 mm are obtained from the micrometer
mm and the send is 1.0 mm thimble scale when it is calibrated only from 0.00 to 0.50 mm.
ANSWERS
0.1g to 0.01 g What is the leadt count of measurment instrument, and how is it relayed to the
number of significant figures of a measurment reading?
Weight, because a lab balance measures an unknown Does a lab balance measure weight or mass?
mass against an unknown mass
To help with the reading on the fractional part of the What is the function of the vernier scale on the vernier caliper? Does it extend
scale division which increases precision accuracy or precision?
Positive zero errors Right side of the main scale zero
Negative zero errors To the left side of the main scale zero
It allows slippage of the screw mechanism when a small What is the purpose of the ratchet mechanism on a micrometer caliper?
constant force is excerpted on the jaw
One complete rotation of the thimble moves through 0.5 Explain how reading from 0.0 through 1.0 mm are obtained from the micrometer
mm and the send is 1.0 mm thimble scale when it is calibrated only from 0.00 to 0.50 mm.
