(a) What
is meant by Conservation of Momentum?
Apakah yang dimaksud dengan
Prinsip Keabadian Momentum?
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(b) Based
on diagram and table above, determine the total momentum of the bowling ball and the bowling pin
Berdasarkan rajah dan jadual di atas, tentukan jumlah momentum bagi bola
boling dan pin boling
(i)
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before the collision.
sebelum perlanggaran.
[1 mark]
[1 markah]
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(ii)
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after
the collision.
selepas perlanggaran.
[1 mark]
[1 markah]
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(
c) Compare the answers in (b)(i) and (b)(ii).
Bandingkan jawapan di (b)(i) dan (b)(ii).
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[1 mark][1 markah]
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(i)
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Based on the
answers in (b) and (c), state a conclusion about the total momentum.
Berdasarkan jawapan di (b) dan (c), nyatakan
satu kesimpulan tentang jumlah momentum
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[1 mark][1 markah]
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(ii)
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State one condition
needed in order to apply the physics principle stated in (d)(ii).
Nyatakan satu syarat yang diperlukan untuk
mengaplikasikan prinsip fizik yang dinyatakan dalam (c)(i).
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[1 mark][1 markah]
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(iii)
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State the
changes in total Kinetic energy before and after collision in (d)(i).
Nyatakan perubahan yang berlaku kepada jumlah tenaga kinetik sebelum
dan selepas perlanggaran dalam rajah 7.
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[1 mark][1 markah]
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(d) What type of collision is this?
Apakah jenis perlanggaran
ini?
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[1 mark][1 markah]
JAWAPAN:
5.
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(a)
Momentum is the product of mass and velocity.
Momentum adalah hasil darab jisim dengan halaju.
(b) (i) The total momentum of the bowling ball and the bowling pin
before collision
Jumlah momentum bagi bola boling dan
pin boling sebelum perlanggaran
= 2.5 + 0.0
= 2.5 kg m s–1
(ii) The total momentum of the bowling ball and the
bowling pin after collision
Jumlah momentum bagi bola boling dan pin boling selepas perlanggaran
= 0.4 + 2.1
= 2.5 kg m s–1
(c) The answers in (b)(i) and (b)(ii) are the same.
Jawapan di (b)(i) dan (b)(ii) adalah
sama.
(d) (i) Total momentum before collision is equal to the total momentum
after collision.
Jumlah momentum sebelum
perlanggaran adalah sama dengan jumlah
momentum selepas
perlanggaran.
(ii) The principle of conservation of momentum
Prinsip
keabadian momentum
(iii) No external force is acting on the system
Tiada daya luar yang bertindak ke atas
sistem
(e) Inelastic collision
Perlanggaran tak kenyal
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