مادے کی خصوصیات

Density is defined as:

• 1 Mass / volume
• 2 Volume / mass
• 3 Mass x volume
• 4 Weight / area

A block has a mass of 200 g and a volume of 50 cm³. What is its density?

• 1 10000 g/cm³
• 2 0.25 g/cm³
• 3 4 g/cm³
• 4 150 g/cm³

Pressure is force per unit:

• 1 Volume
• 2 Time
• 3 Length
• 4 Area

The SI unit of pressure is the:

• 1 Newton
• 2 Pascal
• 3 Joule
• 4 Watt

Hooke's law states that within the elastic limit, the extension of a spring is proportional to:

• 1 Its length
• 2 Its colour
• 3 Its temperature
• 4 The applied force

A ship floats because the upthrust on it equals its:

• 1 Density
• 2 Volume
• 3 Weight
• 4 Speed

Pressure at a point in a liquid increases with:

• 1 Container shape only
• 2 Depth
• 3 Colour
• 4 Surface area only

A hydraulic press works on:

• 1 Pascal's law
• 2 Archimedes' principle
• 3 Hooke's law
• 4 Newton's first law

Atmospheric pressure at sea level is about:

• 1 10 Pa
• 2 1000 Pa
• 3 101000 Pa
• 4 10⁹ Pa

An object is fully immersed in water. The upthrust equals the weight of:

• 1 Water displaced
• 2 Air displaced
• 3 The object
• 4 The container