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1: What is Science?
2: What is Physics?
3: What are the physical quantities?
4: What are the basic characteristics of physical quantities?
5: What are the base quantities?
6: What are the drive quantities?
7: Why a standard unit is needed to measure a quantity correctly?
8: What do you know about International System of Units (SI)?
9: What are the base units?
10: What are derived units?
11: Why multiples and submultiples are used? Describe some standard prefixes, which are internationally used.
12: What do you know about prefixes?
13: How numbers are expressed in Scientific Notation?
14: What do you know about Meter Rule?
15: Explain the statement, “A micrometer screw gauge measures more accurately than
la vernier calipers”.
16: What do you know about Lever Balance?
17: What is electronic balance? What is its range? And how mass is measured by using electronic balance?
18: What do you know about Measuring Tape?
1: Define the branches of Physics.
2: Explain the importance of Physics in daily life.
3: Write a note on Vernier Calipers.
4: Write a note on the Screw Gauge
5: What is Physical Balance? And how it is used?
6: Which one of the following is the most accurate?
7: Write a note on the Stop Watch.
8: What do you know about Measuring Cylinder? How is the volume of liquids measured?
by using this cylinder?
9: Define and explain significant figures. What are the main points to be kept in mind while determining the significant figures of measurement?
10: Write down the rules to round off the numbers?
Beam balance, Physical Balance, And Electronic Balance
1. The number of base units in SI are
2. Which one of the following is the smallest quantity?
3. The amount of a substance in terms of numbers is measured in:
4. An interval of 200 us is equivalent to
5. Which one of the following is the smallest quantity?
6. Which instrument is most suitable to measure the internal diameter of a test tube?
7. A student claimed the diameter of a wire as 1.032 using vernier calipers. Up to what extent do you agree with it?
8. A measuring cylinder is used to measure
9. A student noted the thickness of a glass sheet using a screw gauge. On the main scale, it reads 3 divisions while a 9th division on the circular scale coincides with index line. It’s thickness is
10. Significant figures in an expression are
11. All the accurately known digits and the first doubtful digit
12. Identify the base quantity the following:
- What is the difference between base quantities and derived quantities?
- Pick out the base units in the following
- Find the base quantities involved in each of the following derived quantities
- Estimate your age in seconds.
- What role SI units have played in the development of science?
- What is meant by vernier constant?
- What do you understand by the zero error of a measuring instrument?
- What is a stopwatch? What is the least count of a mechanical stopwatch you have used in the laboratories
- Why do we need to measure the extremely small interval of times?
- What is meant by significant figures of a measurement?
- How is precision related to the significant figures in a measured quantity?
- Express the following quantities using prefixes
- How do the prefixes micro, nano and pico relate to each other?
- Your hairs grow at the rate of 1mm per day. Find their growth rate in mms’
- Rewrite the following in standard form
- Write the following quantities in standard form.
- On closing the jaws of a vernier calipers, zero of the Vernier scale is on the right of it main scale such that 4″ division of its vernier scale coincides with one of the main scale division. Find its zero error and Zero correction.
- A screw gauge has 50 divisions on its circular scale. The pitch of the screw gauge is 0.5 mm. What is its least count?