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5/12 MCQs for:

Experimental physics

Which instrument is commonly used for the measurement of atmospheric pressure?

Barometer.

Manometer.

Calorimeter.

Potentiometer.

Is a temperature of 30o C warm or cold to man?

Cold.

Warm.

Vernier calipers, reading to 0.1 mm, are used to find the internal diameter (10.0 ± 0.1 mm) and the external diameter (12.0 ± 0.1 mm) of a length of glass tubing. The mean wall thickness would be quoted, therefore, as

1.0 ± 0.1 mm.

2.0 ± 0.1 mm.

1.0 ± 0.2 mm.

2.0 ± 0.0 mm.

Four students measure the mass of an object, each using a different scale. They record their results as follows: Which student used the most precise scale?

B.

D.

C.

A.

What is the reading shown on this milliammeter?

2.7 mA.

2.35 mA.

3.4 mA.

3.7 Ma.