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Daya Memusat

Authored by ROHAYATI M

Physics

5th Grade - Professional Development

Used 95+ times

Daya Memusat
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 F=mv2rF=\frac{mv^2}{r}  
Berdasarkan hubungan di atas, apakah hubungan antara F dan r 
( Base on the equation above, what is the relationship between F and r )

F berkadsar langsung dengan r 
( F is directly propotional with r) 

F berkadar songsang dengan r 
( F is inversly propotional with r )

F sama dengan  r
( F is equal to r )

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Rajah di atas menunjukkan seorang atlit acara lontar tukul besi sedang memutarkan tukul besi dalam suatu bulatan ufuk sebelum melepaskannya. Berapakah daya memusat yang bertindak ke atas tukul besi, seberat 7.2 kg ,apabila tukul besi itu sedang bergerak dengan laju seragam  10ms1 10ms^{-1\ }  dengan jejari bulatan, r  1.8m1.8m  

1600 N

40 N

400N

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 F=mv2rF=\frac{mv^2}{r}  
Dari hubungan di atas, apabila nilai r bertambah, nilai F akan ..... 
( From the equation above, when r increases, F will  ... )

tidak berubah ( not change )

bertambah ( increases )

berkurang  ( decrease )

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Berikut adalah ciri-ciri bagi daya memusat bagi suatu jasad dalam gerakan membulat , KECUALI

(Shows that the the characteristic of centripetal force for body in circular motion, EXCEPT)

Arah daya sentiasa menuju ke pusat bulatan

(The force direction towards the centre)

Magnitud daya memusat bergantung kepada jisim jasad, laju dan jejari

(The magnitud of the centripetal force depends on the mass of the body, speed and radius )

Magnitud daya memusat tidak bergantung kepada jisim jasad, laju dan jejari

(The magnitud of the centripetal force does not depends on the mass of the body, speed and radius )

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pilih graf yang betul bagi hubungan daya memusat F dengan jejari, r


( Choose the correct graph that shows the relationship between centripetal froce, F and radius, r )

Media Image
Media Image
Media Image

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