2. What different types of equipment
are used in your sport?
● Need a tennis ball
● A tennis racquet
● Tennis shoes
● Tennis court
http://www.google.com/webhp?hl=en
3. A tennis ball and a tennis
Racquet
● They use a tennis
racquet to hit the ball
to other side of the
court, going back and
forth.
● The tennis ball is
used to bounce the
ball back and forth
until a player misses.
http://images.google.com/images?
hl=en&rlz=1T4SUNA_enUS277US298&um=1&sa=1&q=someone+playing+tennis&aq=f&oq=&aqi=
&start=0
4. The evolution/history of the
tennis racquets
● The first tennis racquets
were actually the
players hands and
gloves to hit the ball.
They then evolved into
wooden paddles. In the
14th century they had a
racquet with strings with
a wooden frame. One
hundred years later new
improvements in
technology they had
laminating the
technology on the
racquets.
http://tennis.about.com/od/racquetsballsstringing/a/evolmodracquet.htm
5. Polymers have improved
● The natural “gut” string is the
important characteristics of
strength, resiliency and
surface roughness. The
improved string is in the form
of a filament of polymer
material which is nylon. The
result is a racquet string of
improved stretch resilience,
or resilience under tension.
http://www.patentstorm.us/patents/4043555/description.html
6. The evolution/history of tennis
balls
● The tennis balls were
made of leather,
stuffed with hair or
wool.
● Now they are made
from rubber and felt
that increases the
ball's wind resistance
and control.
http://ezinearticles.com/?Tennis-Balls&id=3168375
7. Polymers improved in tennis balls
Leather was the
first material used.
Now the polymer,
polyisoprene are
used in the tennis
ball cores.
http://images.google.com/images?
hl=en&rlz=1R2SUNA_enUS346&um=1&sa=1&q=core+of+a+tennis+ball+&aq=f&oq=&aqi=&start=0
8. Research the football field/outdoor
track and how polymers were
important.
● On the football field
there are polymers
which are
polyethylene and
polyurethane are
included in the
construction of similar
football/track fields
around the world.
