Skema Trial Fizik Spm 2014
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SKEMA TRIAL FIZIK SPM 2014 KERTAS 2 1. (a) Transverse wave (b) Reflection (c) Amplitude - reduce Frequency- unchanged 2 (a) displacement per unit time / distance travelled in a unit of time in A specific direction (b) Inelastic collision (c) 8000 kg x 30 m/s + 1500 kg x (-20 m/s) = (8000 + 1500)kg x V V = 22.11 m/s (d) Momentum before collision equals momentum after collision (e) Safety belt / air bag / srumple zone 4. (a) Net heat flow is zero / temperature is equal (b) The initial temperature of cloth is lower than the body temperature Heat energy is transferred until temperature is equal / no heat loss (c) Heat energy, Q = m c = 0.3 (4200) ( 38 – 30 ) = 10080 J (with unit) (d) Decrease
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Transcript of Skema Trial Fizik Spm 2014
SKEMA TRIAL FIZIK SPM 2014KERTAS 21.(a) Transverse wave (b)Reflec!"n (c) A#$l!%&e ' re&%ce Fre(%enc)' %nc*an+e&2 (a)&!s$lace#en $er %n! !#e , &!sance ravelle& !n a %n! "f !#e !nA s$ec!f!c &!rec!"n(b)Inelas!c c"ll!s!"n(c)-000 .+ / 00 #,s 1 1200 .+ / ('20 #,s) 3 (-000 1 1200).+ / 4 4 3 22.11 #,s(&)M"#en%# bef"re c"ll!s!"n e(%als #"#en%# afer c"ll!s!"n(e)Safe) bel , a!r ba+ , sr%#$le 5"ne4.(a) 6e *ea fl"w !s 5er" / e#$era%re !s e(%al (b) T*e !n!!al e#$era%re "f cl"* !s l"wer *an *e b"&)e#$era%re7ea ener+) !s ransferre& %n!l e#$era%re !s e(%al , n" *ea l"ss (c) 7ea ener+)8 9 3# c 3 0.0 (4200) ( 0- : 00 )3100-0 ;(w!* %n!)(&)
