1) Kinetic energy is directly proportional a) speed b) speed squared 2) Gravitational potential energy depends a) on object mass b) on object speed 3) Momentum is a quantity a) scalar quantity b) vector quantity 4) What is mechanical energy? a) the sum of kinetic energy and potential energypotenziale b) car's energy 5) What is conserved in the collision between two billiard balls? a) Only the total momentum b) Total momentum and total kinetic energy 6) A 1 kg apple is on a branch at a height of two meters from the ground. What will be the value of potential energy with respect to the ground? a) 19,6 J b) 2 J 7) A car of mass 1000 kg is moving at 25 m/s. What will be its kinetic energy? a) 6,25x105 J b) 3,1x105 J 8) A ball of mass 300 g moving at a speed of 6 m/s has momentum of a) 1800 g ·m/s b) 1,8 Kg·m/s 9) What is the unit of measurement for momentum? a) Kg·m/s b) N·s 10) Is work a scalar or vector quantity? a) scalar quantity b) vector quantity

Energy e momentum

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