EX 1B Measurement of Length and Time

Which instrument use used to measure lengths in the range of 0 ~ 2.5 cm?

• metre rule

• vernier caliper

• micrometer screw gauge

Which instrument use used to measure lengths in the range of 0 ~ 15 cm?

• metre rule

• vernier caliper

• micrometer screw gauge

Which instrument use used to measure lengths in the range of 0 - 1 m?

• metre rule

• vernier caliper

• micrometer screw gauge

The time taken for a pendulum to complete one oscillation is known as the ___________ of the oscillation

The precision of the vernier caliper is

• 0.1 cm

• 0.01 cm

• 0.001 cm

The precision of the metre rule is

• 0.1 cm

• 0.01 cm

• 0.001 cm

The precision of the micrometer screw gauge is

• 0.1 cm

• 0.01 cm

• 0.001 cm

To estimate the thickness of a sheet of paper using a metre rule, we can measure the thickness of _____________.

• 1 sheet and repeat it 3 times.

• 3 sheets and repeat it 3 times.

• 50 sheets and repeat it 3 times.

• 50 sheets and divide the value by 50.

What is the vernier reading shown?

• 3.43 mm

• 3.47 mm

• 3.43 cm

• 3.47 cm

What is the vernier reading shown?

• 1.32 mm

• 1.39 mm

• 1.32 cm

• 1.39 cm