Eksperimen Fisika - Percobaan Hukum III Newton pada MOBIL BERTENAGA ANGIN

Summary

In this physics practical, the principle of Newton's 3rd law is demonstrated using a toy car powered by a balloon. The setup involves a bottle, chopsticks, a balloon, and straws to create a simple air-powered car. When air is released from the balloon, the action force pushes the car forward, while the reaction force is the backward force exerted by the balloon’s air. This experiment clearly illustrates the concept of action and reaction forces, showcasing Newton's 3rd law in a fun and practical way.

Takeaways

• 😀 The presenter introduces themselves as N Sakinati and their friend, both from class 12 SM Negi Bam, explaining their intent to demonstrate a physics practical on Newton's 3rd law of motion.
• 😀 The practical involves creating a toy car powered by air from a balloon to demonstrate the principle of action and reaction forces.
• 😀 Materials used for the experiment include straws, chopsticks, balloons, bottles, glue guns, scissors, and duct tape.
• 😀 A used bottle with holes on all four sides serves as the base of the toy car, with chopsticks inserted as wheels.
• 😀 A balloon is placed on top of the bottle, and a straw is connected to it to fill the balloon with air.
• 😀 The balloon is then inflated and attached to the top of the toy car, allowing the air to power the movement of the car.
• 😀 The toy car moves forward due to the force of the air escaping from the deflating balloon.
• 😀 The concept of action and reaction forces is demonstrated, where the backward force from the air in the balloon pushes the car forward.
• 😀 Newton's 3rd law is explained: every action force results in an equal and opposite reaction force.
• 😀 The experiment shows that as the air deflates from the balloon, the backward force causes the car to move forward, illustrating Newton's law.
• 😀 The presenter concludes by hoping that the practical work is useful and wishes the audience well with a traditional Islamic greeting.

Q & A

What principle is being demonstrated in the practical test?

The practical test demonstrates the principle of Newton's 3rd Law of Motion, specifically action and reaction forces.

What materials are used in the practical test?

The materials used include straws, chopsticks, balloons, bottles, and glue guns, scissors, and duct tape as the tools.

How is the toy car assembled?

The toy car is assembled by inserting chopsticks into a bottle that has holes on all four sides, then placing a balloon on top of the bottle. A straw is connected to the balloon, which is filled with air.

What causes the toy car to move forward?

The toy car moves forward due to the wind or air released from the deflating balloon, which creates a force that propels the car forward.

What happens to the toy car when the balloon deflates?

When the balloon deflates, the toy car stops moving because the air inside the balloon, which was providing the forward motion, is no longer being released.

What does Newton's 3rd Law state?

Newton's 3rd Law states that for every action force, there is an equal and opposite reaction force.

How does Newton's 3rd Law apply to the balloon car experiment?

In the balloon car experiment, the air moving backward from the deflating balloon creates a reaction force that propels the car forward, as per Newton's 3rd Law.

What are the specific forces at play in the balloon-powered car?

The forces at play are the action force of the air being expelled from the balloon, which pushes backward, and the reaction force of the car moving forward.

What is the purpose of the balloon in the toy car assembly?

The balloon serves as the source of air that, when deflated, creates a force that moves the car forward.

Why are chopsticks used in the toy car construction?

Chopsticks are used as the wheels of the toy car, inserted through holes in the bottle to allow it to roll.