Measurement questions | form one Physics

The reading accuracy of a steel ruler is:
A. 0.0025mm
B. 0.01mm
C. 0.02mm
D. 0.5mm

Ohm is the SI unit of:
A. conductance
B. electric current
C. potential difference
D. upthrust and weight

Juma wanted to measure the volume of a stone with an irregular shape. Which of the following pairs of instruments would you recommend that he use?
A. Measuring cylinder and metre rule
B. Measuring cylinder and overflow can
C. Metre rule and overflow can
D. Metre rule and beaker

Mass, length and _________ are the three fundamental quantities of measurment in Physics.

Which of the following groups of instruments is used to measure the basic fundamental quantities?
A. beam balance, stop watch, and Vernier caliper
B. chemical balance, stop watch, and measuring cylinder
C. measuring cylinder, beam balance, and metre rule
D. spring balance, stop watch, and micrometer screw gauge

The SI unit of electric charge is:
A. ampere
B. coulomb
C. ohm
D. second

If the pitch of a micrometer screw gauge is 0.5 mm, then its thimble has
A 10 equal divisions

B 100 equal divisions
C 50 equal divisions

D 500 equal divisions

Weight has the same SI unit as _________________.

Define the following terms as applied in measurements and give two examples:
(i) Fundamental quantities ____

(ii) Derived quantities _______

An auto mechanic wants to measure the length of an object in the accuracy of 0.01cm.
Which of the following instruments can be used?

1. Metre rule
2. Micrometer screw gauge
3. Tape measure
4. Vernier calliper.