Curling is a great Olympic sport!
Okay, I know many of you will not agree, but I actually like it.
And it is a great situation to examine Newtons Laws of Motion!
Newton’s First Law: An object a rest tends to remain at rest, and an object in motion tends to continue in moving in a straight line at constant speed unless an outside force acts upon it.
The stones that where thrown before are at rest near the target. They will remain at rest until another stone (external force) hits them.
The stone that is being thrown continues moving down the ice until a force stops it. What is that force? Friction. That is why the teammates rub the ice with brooms in front of the stone. The pressure and motion of the brooms melts the ice and thereby decreases the friction so that the stone does not slow down as fast.
Newton’s Second Law: Force equals mass times acceleration. F = ma
There are different weight stones. Which stone would be best if we want to knock another stone away? A stone with more mass will deliver more force to the other stone.
Also more force is needed to thrown the heavier stones.
Newton’s Third Law: For every action there is an equal and opposite reaction.
When your stone collides directly with one of the previously thrown stones, it pushes it forward. But that action also has a reaction – your stone is slowed down.
This idea is more easily seen when a collision is not head on. If your stone hits on the left side of a stationary stone, the stationary stone is moved to the right. But your stone moves to the left. The action of pushing a stone to the right causes your stone to move to the left.
I am sure that there are other ways in which Newton’s Laws of Motion are at play in curling, and in every other Olympic sport.
Comment below and share how you see Newton’s Laws at work this Olympics.