aluminum has a density of 2.7g/cm3 while copper has a density of 8.96g/cm3. Which metal would you choose to build a model airplane? why?
Less mass makes it easy to get off the ground with an airplane. Which plane will weigh less, one made of Al or one made of Cu?
To determine which metal would be more suitable for building a model airplane, we need to consider their densities and other factors.
The density of a material is an important consideration since it affects the weight of the object. A higher density means the material is heavier for the same volume. In the case of a model airplane, a lighter material would be preferred as it would allow for better maneuverability and longer flight times.
Given that aluminum has a density of 2.7 g/cm3 and copper has a density of 8.96 g/cm3, we can see that aluminum is significantly lighter than copper. Therefore, aluminum would be the preferable choice for building a model airplane due to its lower density.
However, it's important to note that density is not the only factor to consider. Other factors such as strength, availability, cost, and ease of shaping may also influence the choice of material for building a model airplane.
To determine which metal would be more suitable to build a model airplane, we need to consider a few factors:
1. Weight: Since a model airplane needs to be light in order to achieve better flight performance and maneuverability, we would prefer a metal with a lower density.
2. Strength: The metal used should be strong enough to withstand the stresses and forces during flight and landing.
Considering these factors, let's compare aluminum and copper.
1. Density: Aluminum has a density of 2.7 g/cm3, while copper has a density of 8.96 g/cm3. Aluminum is significantly less dense than copper, making it a lighter choice for building a model airplane.
2. Strength: Both aluminum and copper are considered to be strong metals, but aluminum, in particular, has good strength-to-weight ratio, meaning it is strong for its weight. This makes it suitable for building a lightweight yet sturdy model airplane.
Based on these factors, aluminum would be the more suitable metal to build a model airplane. Its lower density compared to copper ensures a lighter weight, which could contribute to better flight performance and maneuverability. Additionally, its strength-to-weight ratio makes it a reliable choice for constructing a sturdy model airplane.