Practice Questions

<p>Define a reference point in the context of position and motion.</p>

<p>Define the International System of Units (SI units) for measurement.</p>

<p>What is the SI unit of length?</p>

<p>List two non-standard units of length that were used in earlier days or by common people.</p>

<p>Describe the relationship between a metre and a centimetre in terms of division.</p>

<p>Name the type of motion that involves moving to and fro about a fixed position.</p>

<p>Identify the smallest unit of length that can typically be measured using a $15$-cm scale.</p>

<p>Describe circular motion and provide one example.</p>

<p>How many millimetres are equivalent to one centimetre?</p>

<p>Explain when an object is said to be in motion.</p>

<p>Summarize the correct method for measuring the length of a curved line using a thread.</p>

<p>Convert a length of $500$ centimetres into metres.</p>

<p>Describe the correct way to place a scale against an object for accurate length measurement and the correct eye position while reading it.</p>

<p>Explain how kilometre stones along a road indicate distance with respect to a reference point.</p>

<p>Explain why using non-standard units like handspan leads to different measurements for the same length by different people.</p>