Module 3 - Experiment - Conservation Laws (Lab) Newton's Cradle Observe one ball swinging. Next, observe and describe what happens when two balls, three balls, and finally four balls are swinging, and record your observations. Table 1 Observation one ball One ball comes in and one ball swings out at the same speed two balls Two balls come in and two balls swing out at the same speed three balls Three balls come in and three balls swing out at the same speed four balls Four balls come in and four balls swing out at the same speed. If the first ball swinging has a mass of 4-kg and the rest of the balls are 2-kg, what would the collisions look like? Table 2 Answer Initial collision set 4-kg ball comes in and two 2-kg balls swing out at the same speed, Second collision set Two 2-kg balls come in and one 4-kg ball swings out at the same speed. In a completely frictionless Newton's Cradle toy, the change in speed of the balls coming in and those going out is zero. This is because the net force at the time of the collisions is equal to the weight of the number of balls interacting. False