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Diagram below shows a car with mass 1500kg moving
along the horizontal road.
Rajah
di bawah menunjukkan sebuah kereta berjisim 1500 kg sedang bergerak sepanjang
jalan yang rata.
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(a)
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What is meant by weight?
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Apakah yang dimaksudkan dengan berat?
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[ 1
mark/ markah]
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(b)
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Calculate the weight of the car?
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Hitungkan
berat kereta itu?
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[ 2
marks/ markah]
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(c)
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What happens to the passengers when the car is suddenly
stopped?
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Apakah
akan berlaku kepada penumpang apabila kereta tiba-tiba berhenti?
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[ 1
mark/ markah]
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(d)
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Name the physics principle involved in (c).
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Namakan konsep fizik yang terlibat dalam (c).
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[ 1
mark/ markah]
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(e)
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Suggest way to reduce the negative impact of the physics
concept mentioned above.
Nyatakan
satu cara untuk mengurangkan kesan konsep fizik yang anda nyatakan di atas.
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[ 1
mark/ markah]
JAWAPAN:
a) Berat ialah Tarikan graviti ke atas suatu objek/jisim
b) W= mg
= 1500(10) kgms-2
= 15000N
c) penumpang terhumban ke hadapan
d) Inersia
e) Memakai tali keledar (atau mana mana jwp yang sesuai)
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14.5.19
2A6m - Berat dan inersia
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