Question

sep plan an investigation you want to compare the malleability of two metals. plan an investigation that would allow you to determine which metal is more malleable.

Explanation:

To compare the malleability of two metals, design a controlled experiment where identical forces are applied to uniform samples of each metal, and the resulting deformation (e.g., change in thickness or area) is measured. Malleability refers to a metal’s ability to be shaped by pressure without breaking, so the metal that deforms more under the same force is more malleable.

Answer:

1. Materials: Two metals (e.g., copper and aluminum) cut into identical rectangular strips (same size, thickness, mass), a hammer, a flat anvil, a ruler, a balance.
2. Procedure:

• Use the balance to ensure both metal strips have the same mass; adjust size if needed.
• Place one strip on the anvil. Strike it gently with the hammer 5 times, applying consistent force each time.
• Measure the new thickness and width of the deformed strip with the ruler.
• Repeat the same steps (same number of strikes, same force) with the second metal strip.

1. Analysis: Compare the deformation of the two strips. The metal with a greater increase in width or decrease in thickness (more shape change without breaking) is more malleable.
2. Control Variables: Same initial size/mass of strips, same number of hammer strikes, same force applied, same anvil surface.
3. Safety: Wear safety goggles to protect eyes from flying metal fragments.