PhyLab - Q2: Measurements

Which of the following is the objective of the Virtual Experiment on Measurements?

• To acquire skills in using the Vernier Caliper and triple beam balance

• To acquire skills in assembling Vernier Caliper

• To determine the mass density of some solid materials

• To calculate the actual mass density of some solid materials

Which of the following is the correct derived formula to calculate for the mass density of an Iron sphere with mass m and diameter D?

• $\frac{m}{\pi D^3}$

• $\frac{6m}{\pi D^2}$

• $\frac{3m}{4\pi D^3}​$

• $\frac{6m}{\pi D^3}$

What is the unit of the calculated mass density in the Virtual Experiment on Measurements?

• kg/m^3

• kg/cm^3

• g/cm^3

• g/m^3

How to calculate the percent error?

• Get the quotient of absolute difference between the experimental and actual value, and the actual value. Then multiply it by 100

• Get the quotient of absolute difference between the experimental and actual value, and the experimental value. Then multiply it by 100

• Get the quotient of absolute difference between the experimental and actual value, and the actual value.

• Get the quotient of absolute difference between the experimental and actual value, and the experimental value.

What is the reading in the Vernier caliper?

• 2.01 cm

• 2.010 cm

• 1.010 cm

• 2.050 cm