Percobaan Gaya Angkat Pesawat - Percobaan Fisika

Summary

This experiment demonstrates the concept of lift generated by the shape of an airplane wing, using a styrofoam model. The process involves cutting and assembling the materials, including plastic straws and thread, to create the model. When exposed to airflow from a fan, the model shows lift when the wing angle is adjusted correctly. Bernoulli's principle is confirmed as the airflow speed difference between the upper and lower surfaces of the wing generates lift. The experiment highlights the importance of angle and shape in producing lift, with unstable airflow causing the model to fail at higher angles.

Takeaways

• 😀 The experiment aims to prove the existence of lift generated by the shape of an airplane wing (airfoil) when exposed to airflow.
• 😀 A styrofoam model is used as a replica of an airplane wing for the experiment.
• 😀 The styrofoam is cut into a rectangular shape, glued to paper, and plastic straws are added to create the wing structure.
• 😀 The top end of the paper is glued over the straw to strengthen the model, and holes are made in the paper according to the straw holes.
• 😀 Two strands of thread are tied to skewers, and the thread is inserted into the straw to prepare the model for the experiment.
• 😀 The model is subjected to airflow from a fan to observe how it behaves in relation to lift generation.
• 😀 When the model is directed to airflow, the wing's upper surface experiences faster airflow than the lower surface, which begins to generate lift.
• 😀 At a horizontal angle, the model lifts slightly or sways upwards, indicating the presence of lift.
• 😀 A slight increase in the angle of attack (10-15 degrees) results in a more significant lift, allowing the styrofoam to lift more clearly.
• 😀 If the angle of attack is too large, the airflow becomes unstable, causing the model to fail to lift and even be pushed back due to turbulence.
• 😀 The results demonstrate that the shape and angle of the airfoil significantly influence the magnitude of lift, in line with Bernoulli's principle and the characteristics of stable airflow.

Q & A

What is the main aim of the experiment described in the video?

The main aim of the experiment is to prove the existence of lift generated by the shape of an airplane wing or airfoil when exposed to airflow.

What material is used to create the airplane wing model in the experiment?

A styrofoam model is used as a replica of the airplane wing or airfoil in the experiment.

What is the first step in creating the model?

The first step is to cut the styrofoam into a rectangular shape.

How are the straws involved in the construction of the model?

Plastic straws are cut to the same length and stuck into the styrofoam to support the paper covering.

What is the purpose of gluing the paper over the top of the straw?

The paper is glued over the top of the straw to make the structure stronger and more stable.

Why is a hole made in the paper during the construction?

A hole is made in the paper to align with the hole in the straw, allowing for proper attachment and stability.

What role do the skewers and threads play in the experiment?

The skewers are tied with two strands of thread, which are then inserted into the straw to create a suspension system for the model.

What happens when the styrofoam model is exposed to airflow from a fan?

When the model is exposed to airflow from the fan, it starts to lift slightly if the wing angle is set correctly, demonstrating the presence of lift.

How does the angle of attack affect the lift generated by the model?

When the angle of attack is increased by 10 to 15 degrees, the lift force becomes greater, making the styrofoam model lift more clearly. However, if the angle is too large, the airflow becomes unstable and can prevent the model from lifting.

What does the experiment demonstrate about the relationship between the shape and angle of the airfoil and lift?

The experiment demonstrates that the shape and angle of the airfoil significantly influence the magnitude of the lift force, as explained by Bernoulli's principle and the characteristics of stable airflow.