ICSE Worksheet for chapter2 Measurements class 9
Worksheet For class 9
Find ICSE Worksheet for chapter2 Measurements class 9
CLASS9
BOARD: ICSE
Physics Worksheet  2
TOPIC: Heat
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SUMMARY
 Least count of measuring instrument, Measurement of length with metre scale
 Principle of vernier, Vernier callipers, Principle of a screw, Screw gauge
 Measurement of volume, Measurement of time
 Measurement of mass , A beam balance for comparison of masses
SECTION 1 – OBJECTIVE

The diameter of the wire can be accuratels measured by
 Vernier calipers
 meter rule
 A screw gauge
 any of these

The least count of meter rule is
 1 cm
 (b) 1 m
 (c) 0.1 cm
 (d) 0.01 cm

__________ of an instrument is the smallest measurement that can be taken accurately with it.
 Least count
 length
 Shape
 Not

The distance moved by the screw along its axis in one complete rotation of its head is
 Pitch
 least count
 Measurement
 Not

In screw gauge, the function of ratchet is
 to make main scale
 to mark circular scale
 to rotate the screw
 to read length

The least count of stop watch generally
 1 s
 1 min
 0.5s
 1 h

7. Find the order of magnitude of mass of Pluto if its radius is 10^{6} m and average density is 10 ^{3}kg/m^{3}
 10^{12}Kg
 10^{21} kg
 10^{30}Kg
 Not

Which among the following instruments is most accurate ?
 Screw gauge
 Vertices caliper
 Metre scale
 Meanining tape

Find the least count of a screw gauge whose head scale is divided into 100 division and moves 10 mm for 10 rotations of the head
 0.1 mm
 1 mm
 0.001 cm
 1 cm

10. If the length of second pendulum on a planet is 2 m, then the acceleration due gravity on the surface of the planet is
 9.8 m/s^{2}
 19.6 m/s^{2}
 2π^{2} m/s^{2}
 4π^{2} m/s^{2}
SECTION II – SUBJECTIVE
1. Draw the neat labeled diagram of the screw gauge.
2. Explain the errors in vernier calipers.
3. Explain any three instruments used to measure volume of liquid.
4. Compare the time period of two pendulums of length 1 m and 9 m.
5. Explain the principle of beam balance along with a diagram.
Solutions: to worksheet2 TopicMeasurements
Objective Problems:
1. (c) 2. (c) 3. (a) 4. (a) 5. (c) 6. (c) 7. (b) 8. (a) 9. (c) 10. (c)
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