Product Name: Electric Dryer

Product Code: DX:102

Package: Packaging Bag

Product size: 10.5*7.7*11 (Cm)

Single weight: 0.15 (KG)

Packing Quantity: 500 (PCS)

Size: 60*50*55 (CM)

dryer

I often see my mother put the freshly washed clothes into the dryer, and in a short while, the clothes are dried. How does the dryer get the water off the clothes? Let's find out the reason through the following experiment!

Experimental Focus:Understanding the principle of centrifugal force

Experimental Purpose: 1. Understand the principle of the dryer in a washing machine. 2. Be able to independently make a simple dryer.

Experimental CognitionCentrifugal force, also known as centrifugal force, refers to the force that an object experiences due to its rotation, which tends to make the object move away from the center of rotation along the radial direction. It is also a perceived force in a rotating reference frame, which makes the object deviate from the rotation axis. The value of centrifugal force is equal to the centripetal acceleration but in the opposite direction. Centrifugal force is an expression of inertia and does not actually exist. In order for an object to perform circular motion, it needs to be subjected to a force pointing towards the center of the circle - the centripetal force. If an object is used as the origin to establish a coordinate system, it appears as if there is a force of the same magnitude but in the opposite direction, causing the object to move away from the center of the circular motion (when the force on the object is insufficient to provide the necessary centripetal force for circular motion, it appears as if the centrifugal force is greater than the centripetal force, and the object will move away from the center of the circle. This phenomenon is called "centrifugal phenomenon".

Experiment Steps: 1）Experiment Preparation, Understanding the Experimental Equipment: Wires, Color Sticker, Battery Box, Double-Sided Tape, Plastic Board, Drying Bucket, Plastic Cup, Small Motor, Foam Positioning Board. 2）Connect two wires to the two connectors of the small motor, and then fix the small motor in the foam positioning block. Apply double-sided tape to the foam positioning block and adhere together. Use circular double-sided tape to fix the plastic cup to the foam positioning block. 3）Referring to the diagram, adhere the battery box to the plastic board. Connect the positive wire on the motor to the positive wire on the battery box, and connect the negative wire. Wet the cloth piece and put it into the drying bucket. Turn on the switch on the battery, and the drying bucket rotates quickly to shake the water off the cloth piece.

Hint: Before installing the battery and before putting the wet cloth into the dryer.To avoid short-circuiting or injuring yourself, adjust the direction of the dryer's rotation before using. First, turn off the power, and then adjust the direction of the positive and negative wires.

Functional Features: This series of products combines the physical sciences, energy application, and spatial thinking perfectly into a multifunctional, visualized educational toy, making it a parent-child educational toy with educational properties. It uses components such as gears, motors, and motors to allow children to experience the knowledge of various disciplines, such as physics, chemistry, astronomy, mathematics, etc., and to visualize, model, and standardize them. The purpose is to start from interest, find the interest points of children's learning, let children do it themselves, give children unlimited imagination space, and let children be interested in learning. It has an incredible inspiration effect on children's thinking creativity, mathematical combinatorial thinking, and physical circuitry. Let children stay away from the virtual world of computer games and use scientific thinking to feel the excitement of the real world.

Science and technology models mainly refer to land, sea, and air models. Science and technology model activities integrate science and competition, manual and brain work, and are deeply loved by a wide range of teenagers. Its main role is also to cultivate and improve the comprehensive manual innovation skills and high-quality of teenagers. Therefore, in the new form of deepening reform and vigorously promoting quality education at the turn of the century, actively carrying out science and technology model activities is an effective measure to implement quality education in an all-round way.
Expand Horizons and Enrich Scientific Knowledge
Science and technology model activities are rich in knowledge. For example, in the process of making and sailing model ships, students can understand why ships float, how ships maintain stability, why propellers generate power, and how ships move quickly. If we go deeper, students will encounter radio remote control transmitting and receiving machines, or master the principles of force, density, gravity, pressure, magnetic field, ship construction, engine construction, and radio material selection. Many of these knowledge are not in the "textbook" and are often needed in life. This will inspire students to think about other scientific and technological knowledge that comes from animal inspiration. Can you dare to imagine and make a science and technology model? Some may think of the inspiration from insects such as dragonflies and planes, or from fish shapes such as torpedoes, and can make some simple airplane models.In this way, students will come into contact with a variety of knowledge in science and technology model activities, which supplements a lot of book knowledge and opens up their horizons. It also enriches their extracurricular life and allows them to learn more about scientific knowledge.
Cultivate logical and thinking abilities
The technology model activity requires all participants to have a dialectical, holistic, and rigorous scientific approach in their thinking methods." "Although the sparrow is small, it has all the essential organs." The tiny technology model is a scaled-down version of large, real vehicles, ships, and airplanes; it is an integrated whole, where even a small change can affect the whole.
A model airplane that competes in duration in the air must go through two stages: high-speed climb and low-speed glide. The adjustment for the climb stage mainly involves the adjustment of the pull force line and the angle of attack after the wing is twisted. The position of the center of gravity, the installation angle of the wing and the horizontal tail, and the directional rudder all have an impact on the flight attitude of the airplane during climb, but these changes directly affect the performance of the model during the gliding stage. Therefore, in the design and adjustment, it is necessary to consider these stages comprehensively, as they have different loading conditions and solutions. For example, in the design and production of car, ship, and airplane models, the selection of materials for strength, rigidity, and weight is very serious. It is necessary to choose one of the best schemes from both. Therefore, in the scientific model activity, the thinking method requires adolescents to have a dialectical, holistic, and scientific approach. Otherwise, a small mistake can make the performance of the scientific model worse or even lead to failure.
It can be seen that the initial thinking of people begins with actions. The thinking characteristics of students are mainly in the form of concrete image thinking, and thinking cannot be separated from images and actions. In the process of operation activities, students need to move their eyes, move their hands, and think with their brains, speak with their mouths, so that the external operation process and the internal intellectual activities of dialectical, holistic, scientific, etc. are organically combined, which has effectively promoted their thinking development.
Three Cultivate Good Habits
Science and technology model activities are beneficial for shaping students' good personalities, cultivating their strong willpower and spirit of innovation, as well as their attention to detail and patience, forming a rigorous scientific attitude in doing things.
1. Scientific scheduling of time. Students face homework and various interests, talent cultivation, all need a certain amount of time and energy. Students must scientifically and reasonably arrange their time to achieve order and efficiency, without being overwhelmed.
2, having a beginning and an end. Nowadays, most students are only children, afraid of suffering and lack of perseverance, often give up halfway. If they choose activities that require them to use their hands and brains, let them try their best to complete a science and technology model work, their interest will rise again, because they all love to play with dynamic toys. From this perspective, it will also make them gradually overcome the laziness in the process of making, and persist in completing their own masterpieces. Thus, it also cultivates their habit of having a beginning and an end.
3, Collective Spirit. Students work together to design, create, and compete, helping, comparing, and learning from each other. This fosters a collective spirit among students, making them consider others and learn how to get along with others. In the socialist market economy, this collective spirit is essential for working together with others to create great achievements. The era of isolating themselves to boil pitch like Marie and Pierre Curie is no longer. Now, the society needs the cooperation of talent groups like the Apollo Moon Landing Project to transform the world and create the future.
Four: Stimulate students' interest in exploring the field of science and technology
A scientist or inventor, without a doubt, develops a profound interest in the things they love, and then explores and studies them, eventually achieving significant results in that field. Now, by having students create and assemble technology models, we allow them to understand the formation of power, the generation of buoyancy, and the effects of magnetic fields, laying a solid foundation for their future research and exploration in this area. This also sows the seeds of success.
In conclusion: actively developing science and technology model activities is an effective measure to implement quality education in schools, cultivate students' comprehensive development in morality, intelligence, physical, beauty, and labor, and improve their comprehensive quality. It is also an effective measure to implement the spirit of the opinions on strengthening popular science work issued by the Central Committee of the Communist Party of China and the State Council, as well as the National Fitness Program, and to fully implement the "Science and Education Revitalize the Country" strategy proposed by the Party's 15th National Congress.