RA
hut meaning?
go
down meaning?
get ready
set meaning?
get set
nfl meaning?
nation football league
This transfer of ___________ is what slows down the ball and knocks over the pins?
energy
What is kinetic energy?
energy in motion
What is football?
a sport that involves many collisions
What incresases kinetic energy?
mass
Plastic ___________ facemasks were introduced in plastic helmets in 1975.
bird cage
What is a concussion?
a brain injury caused by a bump or blow to the head
What helps reduce the force of collisions?
helmets
When does potential energy turn into kinetic in bowling?
as the ball rolls down the lane
What is targeting?
a rule to keep palyares safe from head injuries
What are helmets?
A product designed to protect the skulls from the force of impact.
What is tackling in football?
one player had to wrap their arms around another player; collision
What happens to the brain during a collision?
it bounces around
What is a collision?
Something that occurs any time when an object runs into another object
What would cause a more forceful collision?
faster speed
What is an illegal collision in the NFL?
using the head to tackle (targeting)
What supported the NFL rule?
scientific evidence