Physics Form 4 Chapter 1

Which physical quantity is a base quantity?

• Electric current

• Weight

• Velocity

• Density

The following are the fields of study in physics except

• force and motion

• light

• structure of a cell

• waves

Among the following , which is an SI unit?

• centimetre

• minute

• gram

• kelvin

The unit of speed can be expressed in SI unit as

• cm/s

• m/s

• km/s

Which of the following is the shortest length?

• $10^7$ nm
  

• $10^{-2^{ }}$ $\mu$ m

• $10^3$ cm

• $10^{-4}$ km

• $10^{-5}$ Gm

The volume of wooden blobk is 452 cm³ . What is the volume in m³?

• 4.52 x 10³

• 4.52 x 10²

• 4.52 x 10¹

• 4.52 x 10^-2

• 4.52 x 10^-4

Scalar quantities are quantities that have

• magnitude only

• direction only

• both magnitude and direction

Which of the following is a vector quantity?

• Mass

• Time

• Temperature

• Density

• Displacement

A hypothesis is a statement which

• must be true

• must be false

• either be true or false

Which instrument used to measure potential difference?

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