Deal Best

Q 1) A) Fill in banks. 1. Deceleration is __________ acceleration. 2. _________ is the rate at which work is done. B) Say true or false. If false, rewrite the correct statement. 1. When an object is at rest , its initial velocity is zero. C) Find the odd man out. Speed, acceleration, velocity, momentum D) Complete the co-relation. Potential energy : mgh :: kinetic energy : __________ E) Rewrite the statement by choosing correct alternatives. a.  1 horsepower = _______ watt. a) 764       b) 467     c) 746      d) 846 b. The working of rocket depends on Newton's _________ law of motion. a) first      b) second       c) third      d) none of these c. The unit of acceleration is  _________ a) m/s       b) m/s square    c) cm/s      d) m square / s d. Joule is the unit of _______ a) force      b) power     c) work      d) momentum e. Momentum (P) = _____ a. mv square         b) m square  v         c) mv        d) m v square/r Q 2 Answer the following. a)

Q 1. A) Complete the analogy                Crystalline ferrous sulphate : : Crystalline copper sulphate ____________ B) State true or false, if false write the correct statement. Molecular state of oxygen is diatomic. C) Fill in the blanks. The magnitude of charge on any radicle is its ___________ D) Complete the box   V= E) Think and tell. When an object is at rest in the beginning of its motion, what is its initial velocity ? F) Rewrite the statement by choosing correct alternatives. 1. If an object is moving with a uniform velocity _______ a) its speed remains the same, but direction of motion changes. b) its speed changes but direction of motion is same c) its speed and direction both change. d) its speed and direction both remain the same. 2. The potential energy of your body is least when you are ________ a) sitting on a chair  b) sitting on the ground c) sleeping on the ground d) standing on the ground  3. The ________ wire is yellow or green in colour . a)