Bab 2: Daya & Gerakan 1 (T4) Flashcards

1
Q

Gerakan linear:

A

Pergerakan suatu objek dalam satu garisan lurus

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2
Q

Jarak:

A

Jumlah panjang lintasan yg dilalui oleh suatu objek

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3
Q

Sesaran:

A

Jarak terpendek dari titik asal ke titik tamat bagi pergerakan suatu objek pada arah tertentu

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4
Q

Laju:

A

Kadar perubahan jarak

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5
Q

Halaju:

A

Kadar perubahan sesaran

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6
Q

Pecutan:

A

Kadar perubahan halaju

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7
Q

Jatuh bebas:

A

Apbl gerakan objek dipengaruhi oleh daya graviti shj

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8
Q

Pecutan graviti, g:

A

9.81 ms^-2

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9
Q

Inersia (Hukum Newton 1):

A

Kecenderungan objek utk mengekalkan keadaan asalnya jika tiada daya luar yg bertindak

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10
Q

Hubungan jisim & inersia:

A

Semakin besar jisim. semakin besar inersia

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11
Q

Momentum:

A

Kuantiti vektor yg sama arahnya dengan halaju objek

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12
Q

Formula momentum:

A

p = m x v

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13
Q

Prinsip keabadian momentum:

A

Jumlah momentum sesuatu sistem adalah malar/diabadikan jika xda daya luar bertindak

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14
Q

Jumlah momentum sebelum perlanggaran =

A

Jumlah momentum selepas perlanggaran

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15
Q

Perlanggaran kenyal:

A

2 objek berpisah & bergerak secara berasingan selepas perlanggaran

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16
Q

Perlanggaran x kenyal:

A

2 objek bergabung & bergerak bersama2 dgn halaju sepunya

17
Q

Perlanggaran letupan:

A

1 - Objek bergabung & berada dalam keadaan pegun
2 - Objek terpisah & bergerak pada arah bertentangan

18
Q

Formula prinsip keabadian momentum:

A

m1v1 = m2v2

19
Q

Daya impuls:

A

Daya hentaman yg kuat dihasil dlm masa singkat ketika perlanggaran berlaku

20
Q

Formula daya impuls:

A

F = ma

21
Q

Formula impuls:

A

Ft = mv - mu = perubahan momentum

22
Q

Berat suatu objek:

A

Daya graviti yg bertindak pd objek itu

23
Q

Formula berat:

A

W = mg

24
Q

Hukum Newton Kedua:

A

Pecutan suatu objek berkadar terus dengan daya yang dikenakan dan berbalik berkadar dengan jisim objek

25
Q

Hukum Newton Pertama:

A

Sesuatu objek akan kekal dalam keadaan asalnya jika tiada daya luar bertindak ke atas objek itu