Question

1.1) Express astronomical unit, parsec, angstrom and light year in metre.
2) Define 1 kilogram.
3) Define the terms oscillation ,amplitude, frequency and time period related to a simple pendulum.
4) Differentiate between acceleration and retardation. Write the formula and SI unit.
5) Compare the time periods of two pendulums of length 1 m and 4 m.
6) A car accelerates at the rate of 5 metre per second square find the increase in its velocity in 2 seconds.
7) Draw a graph showing the variation of the square with T^2 with l.
8) Write the expression for the time period of simple pendulum.
9) Write three equations of uniformly accelerated motion.
10) A body starts from rest with uniform acceleration 2 m/s^2.Find the distance covered by the body in 2 s.
11) Write Newton's first law of motion Second Law of Motion and third law of motion.
12) State Pascal's law class 9​

Answer 1

Answer:

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