Physics in Sports #1 Crossword

This energy is known as stored energy.
This is usually about 0.20 seconds for the average human. (2 wds.)
An object at rest remains at rest thanks to the Law of ....
If you double your speed, you will quadruple this. (2wds)
The acceleration of an object is proportional to this.
It's the measure of inertia.
Usually measured in Joules.
If you show up unexpectedly in my house, I may have this in my hand.
No air drag and heading towards Earth.
When you go to the moon, this will be different.
Energy cannot be created nor destroyed.
Force is measured in these units.