Parachute Jumper

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    PARACHUTE

    SJK (T) ALOR GAJAH,

    78000 ALOR GAJAH,MELAKA.

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    PROBLEM

    How does a

    paa!"#$e%s s"apea&d 'a$ea

    a*e!$ $"e speeda$ w"!" $ +as

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    A-M

    To investigate the relationshipbetween the materials of theparachute and the speed of

    fall.A-M /

    To investigate the relationshipbetween the shape of theparachute and the speed of fall.

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    HPOTHES-S

    The octagon shape parachute

    took longer time to reach theground compared to rectangularand square shape parachutes.

    HPOTHES-S /

    The parachute made from plastic

    took longer time to reach the groundcompared than the parachute thatmade from nylon and cotton cloth.

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    APPARATUS 1EE2E2

    Scissors

    S$#d3s$&4

    Trash bagMarker PenPaper Cup

    Hoep#&!"

    Calculator

    Me$a

    #e

    Ta&spae&$

    $ape

    Co$$o&

    !o$"13o&!o$"

    StopWatch

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    5AR-ABLES

    Ma&p#a$ed. T"e s"ape o+ $"e

    paa!"#$e/. T"e 'a$ea o+ $"e

    paa!"#$e

    Respo&d&4T'e $ae& 3 $"epaa!"#$e $o ea!" $"e

    4o#&d

    Co&s$a&$. Aea o+ $"e paa!"#$e

    (900!':)/. ;e4"$ o+ $"e . He4"$ dop o+ $"e

    paa!"#$e (=' )

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    E?pe'e&$ Po!ed#es

    . T"e s"apes o+ a s@#ae, e!$a&4e ,a&do!$a4o& ae daw& o& $"e $as" a4.

    /. T"e s"apes ae !#$ #s&4 a pa o+ s!ssos.

    =. T"e e4"$ ed4es a$ $"e e&d o+ ea!" s"apeae 'aed #s&4 a 'ae.

    >. Re&+o!e $"e 'aed aea w$" $"e$a&spae&$ $ape.

    . A "oe & ea!" 'aed aea #s&4 "oep#&!" s 'ade.

    9. T"e s$&4 s $ed a$ ea!" o+ $"e "oe.

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    7. T"e s$&4 s ?ed w$" $"e

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    Res#$s

    Type of

    materials

    Time taken to reach the

    ground Average

    Time

    SpeedT1 T2 T3 T4 T5

    Cotton cloth

    1.! 1.5" 1.24 1."" 1.4# 1.41 2.13

    $ylon cloth 1."1 1.!1 1."" 1.!" 1.#1 1.%% 1."#

    &lastic 'ag

    2.2 2.2# 3.5" 4.1 4.11 3.23 .#3

    !periment "

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    Res#$s

    Plastic#ylonCotto

    n

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    Res#$s!periment $

    Shape of

    the

    &arachute

    Time taken to reach the ground

    Average SpeedT1 T2 T3 T4 T5

    S(uare

    2.%" 3.#" 1.%" 1.#1 1.%# 2.44 1.23

    )ectangle

    1.%5 2.23 1."" 1.43 1.1" 1."5 1.!2

    *ctagon

    3.1 2.4 1.#5 3.5! 2.#4 2.%! 1.!

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    Res#$s

    Square

    %ectangle

    &ctagon

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    2s!#sso&s E?pe'e&$

    To calculate the speed of the parachute weuse the formula below'

    Speed F ds$a&!e $aDeed (')

    T'e $ae& (s)

    T"e paa!"#$e w$" $"e 4"$es$'a$ea ($as" a4) $oo o&4e $'e$o +a a& aDea4e a&d $"e paa!"#$ew$" $"e "eaDes$ 'a$ea (!o$$o&!o$") dd +a +as$e a& aDea4e.

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    To calculate the speed of the parachute we usethe formula below'

    Speed F ds$a&!e $aDeed (')

    T'e $ae& (s)

    T"e es#$ s"ows $"a$ $"e paa!"#$e & $"es"ape o+ a o!$a4o& "aDe $"e sowes$

    des!e&d e!a#se $"ee w e 'oe da4a&d a ess$a&!e a!$&4 o& $"e o!$a4o&

    s"ape !a#s&4 $ $o "aDe $"e sowes$des!e&d.

    2s!#sso&s E?pe'e&$ /

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    Co&!#so& E?pe'e&$

    O# !o&!#so& s $"a$ o# "3po$"ess wass#ppo$ed, $"e paa!"#$e w$" $"e "eaDes$ we4"$dd +a +as$e $"a& $"e paa!"#$e w$" $"e 4"$es$we4"$. T"ee+oe $"e speed o+ $"e paa!"#$e wase*e!$ed 3 $"e paa!"#$e 'a$eas.

    Co&!#so& E?pe'e&$ /

    ;e eeDe $"e es#$s we "aDe !oe!$ed aeeaso&a3 eae a$"o#4" $"ee ae so'e's!ea&eo#s es#$s s#!" as e*e!$ 3 $"e w&d+o' $"e s#o#&d&4 a&d pa!e. A&3 wa3 -$ was!o&!#ded $"a$ $"e o!$a4o& s"ape paa!"#$ede'o&s$a$ed $"e sowes$ oDea aDea4e des!e&da$e !o'paed $o e!$a&4#a a&d s@#ae s"apepaa!"#$es.

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    T"a&

    o#