Question 1 • 2001310 Earth Science Sem 1 - Reeves
Newton’s first law says a moving puck keeps moving at the same speed and direction unless an unbalanced force acts on it. A rough surface creates more friction opposing the puck’s motion, slowing it down. Smooth ice reduces that opposing force, so the puck can travel quickly; this matches “Smooth ice reduces the unbalanced forces that would slow the hockey puck.”
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