national flag lifting platform equivalent fixed pulley scientific experiment children's toy technology small production small invention

Product Name: Flag Raising and Lowering Platform

Item No.: KX85

Length inch: 10*11*42 cm

Package: Packaging bag

Number of boxes to be packed: 500 PCS

Box dimensions: 60*40*55 CM

In the current junior high school physics textbooks, using the equivalent lever principle of pulleys to illustrate experimental facts is an excellent approach that enhances students' understanding and connection of knowledge. To ensure close synchronization between teaching and learning, we have developed a lever principle demonstration device for pulleys in the curriculum, which we present here. 1. Design concept: On actual pulleys, physical objects are used to demonstrate their equivalent lever behavior.

Course Material on the Flag Raising and Lowering Platform Principle
In the current junior high school physics textbooks, using the equivalent lever principle of pulleys to illustrate experimental facts is an excellent approach that enhances students' understanding and connection of knowledge. To ensure close synchronization between teaching and learning, we have developed a lever principle demonstration device for pulleys in the curriculum, which we present here. 1. Design concept: On actual pulleys, physical objects are used to demonstrate their equivalent lever behavior.
Experiment purpose: Since pulleys and levers are equivalent in their operating effects and have the same working principle, including fulcrums, force, resistance, effort arm, and resistance arm, and both are simple machines that follow the law of work—only the fulcrum of a pulley may be on a shaft, on a wheel, or even moving, and their shapes also differ. Nevertheless, they are equivalent in operating effects, so a pulley can also be considered a lever.

1. Experimental preparation: Identify the experimental equipment: fixed pulley, base, pole, pull rope, red flag.
Experiment Report:
The central axis of the fixed pulley remains stationary. The function of the fixed pulley is to change the direction of force, but it does not save effort. When pulling a heavy object
It is possible to use a fixed pulley to change the direction of force application to a direction that allows for easier output. When using a fixed pulley, the distance over which force is applied equals the distance the object rises; there is no reduction in effort. The tension forces at both ends of the rope are equal, so the output force is identical to the input force. When friction is ignored, the mechanical efficiency of the fixed pulley approaches 1.