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Copy of SKill Check#4.2 (Investigation 4 Experience 2) (7/30/2025)

Last updated 4 months ago
5 questions
Required
2

Which statement best compares the melting points of magnesium and sodium?

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2

If you wanted to make a crucible for melting sodium (Na), which metal would be most suitable for that purpose?

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2

Scientists at a metallurgic factory are testing different metals to study the strength of the electrical forces between their atoms. They determined the force needed to bend a sheet of each metal and found that metal A requires 50 N of force, metal B requires 30 N, metal C requires 70 N, and metal D requires 100 N.

Metal _________ is likely to have the lowest melting point, because it is the most _________ metal.

Which terms best complete the sentence?

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2

Read the passage and use the diagram to answer the next question.
The image shows a diagram for a suspension bridge such as the Golden Gate. There are metal elements in the suspenders, towers, cables, and especially the deck. The engineers who design bridges need to consider the properties of metals such as ductility and malleability.

If a strong force acts on the metal towers of the suspension bridge, the tower will not break into pieces like glass, but will bend instead. Which property of metals explains this phenomenon?

Required
2

Read the passage and use the diagram to answer the next question.
The image shows a diagram for a suspension bridge such as the Golden Gate. There are metal elements in the suspenders, towers, cables, and especially the deck. The engineers who design bridges need to consider the properties of metals such as ductility and malleability.


Metal suspenders are required for the new bridge, and you will need a metal with high ductility that can be drawn into long wires with ease. You test the elongation of three different metals against the force, and the results are shown in the graph:

What is the correct order of the metals according to their suitability to be used for suspenders? The least suitable metal will be first, and the most suitable will be last.