Believe it or not, when you go to the nearest park and hop on one of those swings and force your best friend to push you as high as you can, this is actually related to physics. The motion a swing makes is a wave, the force used can change the amplitude, or how high you go. But no matter how much force is used to push a swing, you cannot go faster or slower unless you change the length of the rope on the swing. Speed is equal to distance over time, meaning the greater the distance traveled in a small amount of time means the faster you go. In terms of a wave, force has no effect on the velocity. I hope you enjoyed the playground while you could, because when you know physics is involved it makes it harder to focus on the fun.