Download class 9 chapter 1 numericals solved pdf federal board, National Book foundation. Fazal academy becomes ilm ki dunya for students. All notes of 9th class are available in this site.
Unit 1: Physical Quantities and Measurement
Exercise Numericals Questions Chapter 1
Solved Numericals PDF available at the end.
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Physics Class 9 Chapter 2 Conceptual Questions Federal Board | Fazal Academy Physics Notes Pdf
Question 1: Write the following numbers in scientific notations
a. 1234m b.0.000023s c. 469.3×10^5m d. 0.00985×10^7s
Question 2: Express the followings measurements using prefixes
a. 27.5×10^-10m b. 0.00023×10^-2s
Question 3: If a boy has age of 15 years 2 months and 10 days, convert his age in
a. seconds b. milli seconds c. megaseconds
Question 4: How many kilometres are there in 25 micrometres?
Question 5: What is pitch and least count of
- Vernier calipers if the smallest division on main scale is 1mm and total divisions on vernier scale are 20.
- Screw gauge if the smallest division on its main scale is 0.5 mm and its movable scale has 50 divisions.
Question 6: Look at the measurement of vernier caliper (as shown in pdf given below):
- What is its main scale reading?
- What is its coinciding division on vernier scale?
- Calculate total reading on the vernier caliper suppose?
Question 7. Look at the figure (given below in pdf) of screw gauge, let’s suppose a small steel ball is placed between its spindle and anvil then:
- What is its main scale reading?
- What is coinciding division of circular scale?
- Calculate the total diameter of the ball?
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