Units and measurement Questionbank

If both the length and the width of a rectangle are increased by a factor of $10$, by what factor will the area of the rectangle increase?

A scientist measures the speed of an ant as $4 \text{ mm s}^{-1}$. How far does the ant travel in one minute, expressed in centimeters?

Multiplying a length measurement in metres by $10^{-3}$ is equivalent to converting that measurement into which unit?

A car travels at a constant speed of $25\text{ m s}^{-1}$. What is this speed in $\text{km h}^{-1}$?

A circular carpet has its radius tripled. By what factor does the total area of the carpet increase?

According to the International System of Units (SI), which base unit is used to measure electric current?

Given that $1\text{ mile} \approx 1.609\text{ km}$, a marathon runner covering $42.195\text{ km}$ has run approximately how many miles?

True or False: In mathematical modeling, 'capacity' is typically used to describe the amount of space available to hold something (often liquids), while 'volume' refers to the three-dimensional space an object occupies.

Which of the following statements correctly describes the change in the numerical value when converting a measurement from a smaller metric unit, such as $\text{millimeters}$ ($\text{mm}$), to a larger metric unit, such as $\text{meters}$ ($\text{m}$)?

A student calculates the volume of a cylinder using $V = \pi r^2 h$. If $r$ is measured in $\text{cm}$ and $h$ is measured in $\text{m}$, which step is necessary to ensure the final answer is correctly expressed in $\text{m}^3$?