Lakhmir Singh & Manjit Kaur Solutions for Chapter: Physical Quantities and Measurement, Exercise 3: Test Your Understanding

The water in a graduated cylinder is measured at $35 \text{mL}$.. A ball is then put in the cylinder and the water level rises to $52 \mathrm{mL}$. If the density of the ball is $25 \raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^3$}\right.$ the mass of ball (in $\text{kg}$) is:

A $350 \text{cm³}$ flask of glass filled with sea water weighs $\text{450 g}$. The density of sea water if an empty flask weighs $\text{100 g}$ would be:

A block of concrete with dimensions 0.4 m, 0.2 m and 0.5 m has a density of 500 kg/m³. Calculate the mass of the block.

In the Sl system, the unit for speed is written as

Higher speed is seen in:

Length of distance, which is covered in specific time is called:

 Road signs like $\text{50 km/h}$ are warning to drive in given:

In $12$ minutes, a car whose speed is $35 \mathrm{km}/\mathrm{h}$ travels a distance of: