Pre Mid Year Examination F4 2020

Which pair of physics quantity and SI unit is correct?

Pasangan kuantiti fizik dan unit SI manakah yang betul?

• Physics Quantity : Weight

  SI Unit : Kilogram

• Physics Quantity : Power

  SI Unit : Joule

• Physics Quantity : Force

  SI Unit : Newton

• Physics Quantity : Pressure

  SI Unit : Watt

Diagram 1 shows a rule is used to measure the internal diameter of a pipe.

Rajah 1 menunjukkan sebatang pembaris digunakan untuk mengukur diameter dalam sebatang paip.

• 1.6 cm

• 1.8 cm

• 2.0 cm

• 2.6 cm

Diagram 2 shows a graph relating two physical quantities, H and K.

Rajah 2 menunjukkan satu graf yang menghubungkait dua kuantiti fizik, H dan K.

Which statement is correct?

Pernyataan manakah benar?

• H directly proportional to K

  H berkadar terus dengan K

• K is the constant variable

  K ialah pembolehubah dimalarkan

• H is the manipulated variable

  H ialah pembolehubah dimanipulasi

• H decreases linearly with K

  H berkurang secara linear dengan K

Diagram 3 shows a wooden block with measurement of 20 mm × 12.5 cm × 0.3 m.

Rajah 3 menunjukkan sebuah blok kayu dengan ukuran 20 mm × 12.5 cm × 0.3 m.

What is the volume of the box in m³?

Berapakah isipadu kotak itu dalam m³?

• 7.5 × 10^-6 m³

• 7.5 × 10^-4 m³

• 7.5 × 10² m³

• 7.5 × 10⁴ m³

Density of mercury is 13600 kg m^-3 which is equivalent to

Ketumpatan merkuri, 13600 kg m^-3 adalah setara dengan

• 1.36 × 10¹ g cm^-3

• 1.36 × 10^-1 g cm^-3

• 1.36 × 10^-2 g cm^-3

• 1.36 × 10^-3 g cm^-3

Which quantity is a vector quantity?

Kuantiti manakah ialah kuantiti vektor?

• Length

  Panjang

• Velocity

  Halaju

• Volume

  Isipadu

• Density

  Ketumpatan

Diagram 2 shows a graph relating two physical quantities, P and K.

Rajah 2 menunjukkan satu graf yang menghudungkait dua kuantiti fizik, P dan K.

• P is the manipulated variable

  P ialah pembolehubah dimanipulasi

• K is the constant variable

  K ialah pembolehubah dimalarkan

• P deceases linearly with K

  P berkurang secara linear dengan K

• P is directly proportional to K

  P berkadar terus dengan K

"Physical quantity is only coplete when information about magnitude and direction is known"

The statement above refers to

• vector quantity

• scalar quantity

• derived quantity

• base quantity

Which of the statement shows the main usage of the graph in scientific research?

• To identify and control the variables

• To summarize the presentation of scientific research that has a lot of numbers

• To show the relationship between physical quantities in research through visualisation

• To extrapolate the quantity value that is outside the reading range of experimental measurement

Which group consists of only scalar quantities

• Time, Distance, Work, Earth Mass

• Speed, Weight, Volume, Refractive Index

• Force, Velocity, Impulse, Initial momentum

• Area, Energy, Displacement, Optical Density