EXERCISE 1.3

1
EXERCISE 1.3
VERNIER CALIPERS
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Q1. What instrument should be used to measure the
diameter of a steel ball bearing as
accurately as possible?
?
No, ruler is used to measure short length such as
length of a book
A. Ruler
?
B. Micrometer
No, micrometer is used to measure very short
length
?
No, measuring tape is used to measure longer
length such as length of a room
C. Measuring tape
?
Yes, well done! Vernier caliper is used to
measure the inside and outside diameter of an
object
D. Vernier Caliper
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Q2. Fig. 2.1 shows a vernier scale. The
vernier scale reads mm
?
A. 2.3
?
B. 2.03
?
C. 3.2
?
D. 3.02
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Q3. What is the reading on the vernier scale?
Answer
0.76 cm
Solution 0.7 0.06 0.76 cm
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Q3. What is the reading on the vernier scale?
Answer
5.11 cm
Solution 5.1 0.01 5.11 cm
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Q3. What is the reading on the vernier scale?
Answer
3.63 cm
Solution 3.6 0.03 3.63 cm
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Q3. What is the reading on the vernier scale?
Answer
12.26 cm
Solution 12.2 0.06 12.26 cm