SECTION
B
1 Diagram1 shows
a wooden block is pushed with the same force on four different types of
surfaces.
Rajah 1
menunjukkan bungkah kayu ditolak menggunakan daya yang sama tetapi diatas
permukaan yang berlainan.
Diagram 1
Table 1 shows the result of distances
travelled by the wooden block on different types of surfaces.
Jadual 1 menunjukkan jarak
yang dilalui oleh bungkah kayu di atas permukaan yang berbeza.
Type of surfaces (jenis permukaan)
|
K
|
L
|
M
|
N
|
Distance travel by
wooden block (cm) (jarak dilalui bungkah)
|
76
|
20
|
32
|
60
|
Table 1
(a) What is the
purpose (aim) of the investigation?
Nyatakan tujuan penyiasatan?
________________________________________________________________________
________________________________________________________________________
[1 mark]
(b) State one reason (inference) for the
distance travelled by the wooden block on surface L.
Nyatakan satu
inferens bagi jarak yang dilalui oleh bungkah kayu pada permukaan L
_
______________________________________________________________________
______________________________________________________________________
_______________________________________________________________________
[1 mark]
(c) State one reason (inference) for the
distance travelled by the wooden block on surface K.
Nyatakan satu
inferens bagi jarak yang dilalui oleh bungkah kayu pada permukaan K
________________________________________________________________________
______________________________________________________________ ________
_________________________________________________________________________
[1 mark]
(d) State
(i) what
is changed (manipulated variable):
Apa yang diubah (pemboleh ubah
dimanipulasi)
__________________________________________________________________________
__________________________________________________________________________
(ii) what is observed (responding variable):
Apa yang diperhatikan
(pemboleh ubah bergerak balas)
___________________________________________________________________________
___________________________________________________________________________
(iii) what is kept the same (constant variable):
Apa yang mesti ditetapkan
(pemboleh ubah dimalarkan)
___________________________________________________________________________
____________________________________________________________________________
[3 marks]
(d) State one relationship (hypothesis) between
type of surface and distance travelled by the wooden block.
Nyatakan satu hubungan (hypothesis) antara jenis permukaan dan jarak
yang dilalui oleh bungkah kayu.
___________________________________________________________________________
___________________________________________________________________________
[1 mark]
(e) What can you
conclude from this investigation?
Apakah kesimpulan dari penyiasatan ini?
___________________________________________________________________________
___________________________________________________________________________
[1 mark]
2 The bar graph
in Diagram 2 shows the time spent for four runners to complete a running
distance of 100 m during sports day.
Geraf palang
pada rajah 2 menunjukkan masa diambil oleh empat pelari untuk menghabiskan
jarak larian sejauh 100 m pada hari sukan.
Diagram
2
(a) Which runner is
the champion in the 100 m run?
Siapa yang menjuarai larian 100 m itu?
______________________________________________________________________
[1 mark]
(b) Give one reason for your answer in (a).
Nyatakan sebab bagi jawapan di (a)
______________________________________________________________________
______________________________________________________________________
[1 mark]
(c) Which of the
runner is the last in the 100 m run?
Pelari mana yang mendapat tempat terakhir?
_____________________________________________________________________
[1 mark]
(d) Give one reason (inference) for your answer
given in (c).
Nyatakan sebab bagi jawapan di (c)
______________________________________________________________________
[1 mark]
(e) State
nyatakan
(i)
what is changed
(manipulated variable):
apa yang diubah (pemboleh
ubah dimanupulasi)
_______________________________________________________________________
(ii)
what is observed
(responding variable):
apa yang diperhatikan (pemboleh ubah
bergerakbalas)
_________________________________________________________________________
[2 marks]
3 Diagram 3 shows an investigation
carried out to investigate the speed of an object using bricks of different
heights.
Rajah 3
menunjukkan satu penyiasatan bagi menentukan kelajuan objek menggunakan
ketinggian bungkah kayu yang berbeza.
Diagram 3
The result of the investigation
is recorded in Table 2.
Keputusan penyiasatan direkodkan pada jadual 2
Height of
Ramp
(ketinggian
landasan)
|
Distance travelled by the trolley (cm)
(jarak yang
dilalui troli)
|
Time (s)
(masa)
|
1 brick
|
10
|
5
|
2 bricks
|
25
|
5
|
3 bricks
|
40
|
5
|
Table 2
(a) What is the relationship between the height of ramp and the distance
travelled by the trolley in this investigation?
Apakah hubungan antara tinggi landasan dan
jarak yang dilalui troli?
__________________________________________________________________________________
___________________________________________________________________________________
[1 mark]
(b) State two variables in the investigation.
Nyatakan dua pemboleh ubah dalam penyiasatan itu
1.
____________________________________
2. ____________________________________
[2 marks]
(c) Calculate the
speed of the trolley if it moves on the ramp with the height of
Kira laju troli jika ia bergerk dari ketinggian
(i) 3 bricks: _______________________________________________________________
(ii) 6 bricks: ________________________________________________________________
[2 marks]
(d) What can be
concluded from this investigation?
Apa kesimpulan dari penyiasatan ini?
___________________________________________________________________________
[1 mark]
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