Question

A glider toy as shown in the image below is usually made with Balsa wood. Due to the unavailability of Balsa wood, a student is considering an alternative material. Considering the density of the material that is required to make the fuselage, which will be the most suitable option?

• A. Rattan cane
• B. Jute plant stem
• C. Pine wood
• D. Mango wood

Hint:

For material substitution problems, compare the properties (e.g., density, weight) of the original and alternative materials.

Answer 1

The Correct Option is B

Step 1: Understand the properties of Balsa wood.
- Balsa wood is lightweight and has a low density, making it ideal for flight dynamics. Any alternative material must have similar characteristics.
Step 2: Analyze the given options.
- Rattan cane: Relatively dense, not suitable. Incorrect.
- Jute plant stem: Lightweight and low density, suitable as an alternative. Correct.
- Pine wood: Denser than jute, not suitable. Incorrect.
- Mango wood: Very dense, unsuitable for the glider. Incorrect.
Step 3: Conclude the answer.
The most suitable material is:\[ {\text{B - Jute plant stem}}. \]