define momentum and its si unit class 9

Write its S.I. Answer: A ratio of SI units to CGS units of momentum is (kg m/s)/(g cm/s) i.e., 10s. Question 4. Similarly, small force applied for a long duration will cause the same change in momentum as a large force – Impulse force for a short duration. (ii) How much momentum will an object of mass 10 kg transfer to the floor, if it falls from a height of 5 m (g =10 m/s 2). What is the ratio of SI units to CGS units of momentum? Consider the following objects and calculate the magnitude of their momentum in SI units. Show that its SI unit is Ns. Here you will get the CBSE Class 9 Science notes on chapter 11 ‘Work and Energy’. Class-9 » Physics. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Physics Forces and Laws of Motion. The same force acting on the same body for a long duration of time will cause a greater change in its linear momentum as compared to the same for a short duration. (iii) Explain how a karate player can break a pile of tiles with a single blow of his hand. What is the full form of SI system? (c) Rate of change of momentum. Linear momentum: Linear momentum of a body is the product of mass of the body and its velocity. So, Linear momentum p = mv. Define linear momentum. The entire NCERT textbook questions have been solved by best teachers for you. Answer: The full form of S.I. Define Momentum write its SI unit 2 See answers Brainly User Brainly User Momentum is the quantity of motion of a moving body, measured as a product of its mass and velocity. Question 3. (i) Define momentum. Q2. Define standard unit. system is International System of Units. Answer: Unit is the quantity of a constant magnitude which is used to measure the magnitudes of other quantities of the same nature. Force and Laws of Motion Class 9 Extra Questions Short Answer Questions-I. Answer: SI unit=kg m/s. It is generally a good idea to gain an understanding of the "size" of units. The momentum of (P) of an object is defined as the product of its mass (m) and velocity (υ). Question 1. Define least count of any device. This is the first part of the notes of Chapter9. Filed Under: Class 9, Force and law of motion Tagged With: conservation of momentum, total momentum About Mrs Shilpi Nagpal Author of this website, Mrs Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed (I. P. University) and has many years of experience in teaching. CBSE Class 9 Science notes for chapter 9 - Force and Laws of Motion are available here. unit. P = mυ SI unit of momentum is kg ms-1 Graphs (a) If m = constant P ∝ υ (b) If v = constant P ∝ m. Question 3. it formula = mass × velocity so it's SI unit is = kg×m/s = kg m/s Hope this helps u thanks skyfall63 skyfall63 Answer Share 2. How do you measure the effect of an impulsive force on the body? Share with your friends. Also write SI unit for each (CBSE 2015) Answer: (a) Initial momentum = mu Final momentum = mv (b) Change in momentum = final momentum – initial momentum = (mv – mu) = m(v – u) SI unit of initial momentum, final momentum and change of momentum is kg m s-1 SI unit of rate of change of momentum is kg m s-2 or N. “Action and reaction are equal and opposite but … ... sI unit of Power is Joule per second or Js1. Body and its velocity a body is the product of mass of the body and its velocity teachers you! Solved by best teachers for you is generally a good idea to gain an understanding the! Part of the body and Energy ’ of other quantities of the notes of Chapter9 a blow. Good idea to gain an understanding of the notes of Chapter9 textbook Questions have been solved best. Momentum of a body is the product of mass of the body effect of an impulsive on. Karate player can break a pile of tiles with a single blow of his.. 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