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(b) Complete the four spaces in the passage. Each strip has a negative charge. The cloth is left with a. __ charge. This is because particles called __ have been transferred from the __ to the ...................................................................... (c) The student tried the experiment using two strips of aluminium. The strips did not move. Complete each of the sentences. (i) Materials, such as aluminium, which electricity will pass through easily, are called __ (ii) Materials, such as polythene which electricity will not pass through easily,are called __

Question

(b) Complete the four spaces in the passage. Each strip has a negative charge. The cloth is left with a. __ charge. This is because particles called __ have been transferred from the __ to the ...................................................................... (c) The student tried the experiment using two strips of aluminium. The strips did not move. Complete each of the sentences. (i) Materials, such as aluminium, which electricity will pass through easily, are called __ (ii) Materials, such as polythene which electricity will not pass through easily,are called __

(b) Complete the four spaces in the passage. Each strip has a negative charge. The cloth is left with a. __ charge. This is because particles called __ have been transferred from the __ to the ...................................................................... (c) The student tried the experiment using two strips of aluminium. The strips did not move. Complete each of the sentences. (i) Materials, such as aluminium, which electricity will pass through easily, are called __ (ii) Materials, such as polythene which electricity will not pass through easily,are called __

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UrsaElite · Tutor for 8 years

Answer

<br />[b]<br />1. positive<br />2. electrons<br />3. strip<br />4. cloth<br /><br />[c]<br />(i) Conductors<br />(ii) Insulators

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<br /><br />This two-part multiple-blank-fill-in question is about the basic properties of materials with regard to their interaction with electric charge. Some materials allow electricity to flow easily - these are called conductors. Others do not allow electricity to pass thorough easily - these are insulators.<br /><br />Let's tackle this step by step.<br /><br />Part (b) relates to the transfer of charge. <br /><br />- The cloth is charged because of the process called static charging or static electricity which happens when two objects exchange protons or electrons when they make physical contact. Hence, the cloth left aligns with a "positive" charge. <br /><br />- The particles that are transferred in this case would be "electrons". They generally transfer from an object of a higher negative charge to an object less negative or positively charged. Here the 'from' would be the "strip" and 'to' would be the "cloth".<br /><br />Part(c) focuses on object materials handling electricity. <br /><br />- (i) Materials which allow electricity to flow through easily are categorized as "conductors" in physics. So in the regard, aluminum classifies as a "conductor". <br /><br />- (ii) When it comes to materials that do not allow electricity to flash though very well, they fall under the category of "insulators". In relation to this, certainly polythene resembles an "insulator".
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