Up on Sports Safety."
end on the sport, but
helmet design. First,
and lightweight and
d, the helmet needs to
ugh to protect the skull
ke hockey goalies or
so needs to protect
Third, it must not
or hearing. Fourth, it
it prevents.
ess many of these
ble, light, strong
19
20
TIME REMAINING
01:53:58
Which is a key detail that supports the main idea that
there are general principles that guide sports helmet
design
?
O Helmets must protect the face.
O Helmets must not prevent seeing or hearing.
Scientists invent new plastics all the time.
O Materials used for police can be used in sports.