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Science Library Quiz

Momentum

Instructions: answer the questions, check them carefully, and when you are sure they are all right, press submit. The number of correct answers will be displayed.

Question 1: This image illustrates an example of Newton's: Newton's Cradle



Question 2: When a silly person not wearing a seatbelt flies through the windscreen during a accident, he is giving us a demonstration 'on the fly' of Newton's:



Question 3: A man pulls a box with a force equal to his own weight. He cannot move the box, so a friend gives him a little help, and the box beigns to move. After a short time, the friend stops helping. The box continues to move, but at a very low constant velocity. Which of these statements is true about the situation?




Question 4: A car is cruising on a level road at 100 km/h. What is its engine doing?




Question 5: A skater spins faster when she pulls in her arms and legs. This is a demonstration of the Law of Conservation of:




Question 6: In the situation of a row of 3 identical coins, the elastic collision of another coin of twice the mass will result in:




Question 7: In an inelastic collision, which is true?




Question 8: In an elastic collision, which is true?




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