Physics Chapter 1 Test 643y

PHYSICS CHAPTER 1 Test # 1 Time: 50 Minutes Total Marks: 28 Marks Instructions Make proper arrangement for test. Solve it on separate pages. When you start the test, don’t go anywhere unless you finish it. Solve the test like your real exam. Perform all steps in solution. Answer all questions.

Advice Read each question carefully before you start to answer it. Keep an eye on the time. Try to answer every question. Check your answers if you have time at the end.

Answer ALL The Questions ______________________________________________________________________________

QUESTION NO. 1: Define Following : i. Physical Quantity ii. Vernier Callipers iii. Base Units iv. Prefixes v. Zero-Error .......................... (10) QUESTION NO. 2: Give short answers. i. ii. iii. iv. v.

What role SI units have played in the development of science? What is meant by vernier constant? Why do we need to measure extremely small intervals of times? Write all prefixes with symbol and multiplier? Write base units of following derived quantities: Charge, Pressure, Density .......................... (10)

QUESTION NO. 3: A. Write note “on measuring volume of an irregular shaped solid”? B. Name all the mass measuring instruments and explain any one of them? C. A screw gauge has 50 divisions on its circular scale. The pitch of the screw gauge is 0.5mm. What is its least count? .......................... D. (3+3+2)

THE END