Question
Question 13 of 15 Which of the following metals is usually chosen for making cars and bridges? aluminium gold fron copper
Answer
4.7
(285 Votes)
Bruce
Elite · Tutor for 8 years
Answer
Iron
Explanation
## Step 1:Identify the key requirement of the question: the metal chosen for making cars and bridges. The metal must possess properties such as strength, durability, and cost-effectiveness.## Step 2:Evaluate the properties of each metal:- Aluminium: Lightweight, corrosion-resistant, but not as strong as some other metals.- Gold: Very expensive, not practical for large structures, and too soft.- Iron: Strong and durable, but prone to rust.- Copper: Good conductor of electricity, but not typically used for structural purposes due to its cost and lower strength compared to iron and steel.## Step 3:Determine the most suitable metal based on the evaluation:- Aluminium is often used in car manufacturing due to its lightweight and corrosion resistance, but not typically for bridges.- Iron, when alloyed with carbon to form steel, is commonly used for both cars and bridges due to its strength and durability.## Step 4:Conclude that the metal most commonly chosen for making cars and bridges is iron, particularly in the form of steel.