Units and Measurements

What is the Standard International unit for mass?

• kg
• g
• mg
• Mg

What is the Standard International unit for time?

• second
• minute
• hour
• day

The micrometer screw gauge is completely closed. What is the zero error?

• + 0.04 mm
• - 0.04 mm
• + 0.46 mm
• - 0.46 mm

The Vernier callipers are completely closed. What is the zero error?

• + 0.05 cm
• + 0.05 mm
• - 0.05 cm
• -0.05 mm

What is the definition of the period of a pendulum?

• one oscillation
• the time taken for one oscillation
• the time for one swing back and forth
• swing from A to B to A

What is the only thing that increases the period of a pendulum?

• increase the length of the pendulum
• decrease the length of the pendulum
• increase the weight of the pendulum bulb
• decrease the weight of the pendulum bulb

What is the correct way to read a reading on a ruler?

• perpendicular to the surface of the ruler
• 45 degrees to the surface of the ruler
• parallel to the surface of the ruler
• at any angle I want

What is the reading?

• 7.22 cm
• 7.72 cm
• 7.22 mm
• 7.72 mm

The micrometer screw gauge is completely closed. What is the zero error?

• +0.02 mm
• +0.2 mm
• -0.02 mm
• -0.2 mm

This set of Vernier callipers has a zero error of -0.03 cm. What is the actual measurement?

• 5.34 cm
• 5.37 cm
• 5.40 cm
• 5.44 cm