The steps to make a solar car are as follows:
1. Prepare a solar panel, a micro motor, 4 wheels, a small window panel, 6cm iron shaft, 1 main gear, 1 single gear, 4 bushings, 4 small shaft frames, motor clamp, foam glue and some small 4mm screws.
2. Install small brackets on the four corners of the small window panel and secure them with 4mm screws.
3. Install the single gear and the orange bushing on the 6cm iron shaft (the hole of the single gear is tight, you can press it in or out using tools. Also pay attention to position and direction).
4. Screw the gear iron shaft assembly into the hole under the small shaft frame and install the bushing on the other end (be careful not to overtighten it and leave some play).
5. Install the wheel on the iron shaft.
6. Install the gearmain on the micromotor.
7. Use a motor clamp to fix the micromotor at the position of the small window panel as shown in the figure (note that the bite of the gear is appropriate, neither too tight nor too loose. To be able to turn the wheel easily, you can adjust it manually several times).
8. Attach a small piece of foam glue to the back of the solar panel, then stick it to the small green window panel.
9. Production is complete. Test: The solar panel should have current under direct sunlight. On cloudy days or indoors, you can turn on the bathroom heater and test it from a distance of about 30 cm.
Detailed answer:
Solar panel is a device that absorbs sunlight and converts solar radiation energy directly or indirectly into electrical energy via the photoelectric effect or the photochemical effect. panelsSolar ux is "silicon", but due to its high production cost, it cannot be widely and commonly used in large quantities. Compared with ordinary batteries and rechargeable batteries, solar cells are more energy-saving and environmentally friendly green products.
Solar panels do not have energy storage function, so the solar car can only work in places exposed to direct sunlight.
Steps to make small solar technology work
Second year science and technology productions include simple windmills, solar lamps, paper cups and solar water heaters. .
1. Simple Windmill: Materials include a piece of cardboard, a bamboo stick, glue, and scissors. First draw a pinwheel shape on cardboard, then cut it out. Cut the bamb stickor the same length as the windmill blade and pass it through the center of the blade. Glue the blades onto the bamboo sticks so that the windmill can spin freely. Place the windmill in a windy location and observe the speed and direction of its rotation.
2. Paper Cup Lamp: Materials include two paper cups, a candle, rope and glue. First dig a small hole in the bottom of one of the paper cups, then thread the string through the hole and tie it tightly. Make a large hole in the bottom of another paper cup and place the candle in the large hole. Attach the paper cup with the small hole to the large hole on it and stick it firmly with glue. Light the candle and observe the brightness and color of the small lamp.
3. Make a solar water heater: Materials include a clear plastic box, black plastic bags, masking tape, and a thermometer. Commence by cutting the black plastic bag to the same size as the bottom of the plastic box and sticking it to the inside of the box. Insert the thermometer into the side of the box and secure it with tape. Place the box in the sun and watch the thermometer change. Over time, the temperature inside the box will gradually increase as the black plastic bag absorbs solar energy and transfers it to the air and water inside the box.
Function of small technological productions:
1. Small technological productions can exercise children's hands-on ability. During the production process, children must constantly try, explore and discover, thereby gradually mastering some basic skills and techniques. These skills and techniques include not only the use of scissors, glue and paintbrushes, but also the identification and selection of materials.to. With continued practice, children's hand-eye coordination will also improve.
2. Small technological productions can stimulate children's creativity and imagination. During the production process, children need to constantly think, try and innovate to gradually form their own ideas and creativity. These ideas can range from improving existing things to completely new inventions. Through continuous creation and exploration, children's thinking will become more open and flexible.
3. Small technological productions can also develop children's observation and analysis skills. During the production process, children need to constantly observe, record and analyze, gradually discovering the patterns and characteristics of things. These observations and analyzes can help children better understand scientific principlesand technical applications, thus improving their scientific knowledge.
4. Small technological productions can also cultivate children's self-confidence and patience. During the production process, children must constantly face difficulties and challenges to gradually overcome their weaknesses. These challenges and difficulties can help children better understand themselves and others, thereby increasing their self-esteem and self-confidence.
Level 3 small science and technology production, simple and beautiful
1. Clean eraser materials with a brush: large eraser, trash brush.
Tools: scissors, glue.
Production method:
1. Dig a small, shallow round hole in one end of the eraser 2. Remove the tip of the trash brush, wash it and dry it.
3. Cut the tip of the brush tip for the transform into a small brush
4. Insert the tip of the brush into the small round hole of the eraser and stick it firmly with glue (finished)
2. Small production: solar hot water bottle
Material:
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Large black plastic bag, rope.
Preparation method:
Fill the black plastic bag with water, tie the opening of the bag tightly and expose it to the sun (see photo). After a while, the water in the bag will be warm and can be used to wash your face and feet.
3. Materials: nuts, matches, plasticine, small strips of fabric.
Steps:
1. Put the tip of the nut on the fire and burn it for a while, then throw it into cold water. The nut will crack along the seams.
2. Break the walnut into two halves along the seam.
Antique clock - hourglass
1. Take out the two boxes of jelly that were eaten and poke a hole in the middle of the boxesof jelly.
2. Take out another clear straw and use the straw to connect the two jelly boxes together.
3. Put the sand into the jelly box, then close the opening of the jelly box with plastic wrap. (Complete)
3. Remove the walnut kernels, leaving the shell empty, and stick a small piece of modeling clay inside the shell.
4. Use matches and a small piece of fabric with “Dream” written on it to make a sail and insert it into the playdough. In this way, a “walnut ship” carrying dreams can set sail.
The third-year science and technology production method is as follows:
1 Make a solar wind turbine
1. . Prepare the materials: 4 round cardboard boxes, 1 square cardboard box, 4 disposable paper cups, glue, scissors, bamboo skewers and transparent tape. Draw four small shapespinwheels on square cardboard and cut them out. Cut the blades of each small windmill into contoured shapes with scissors and glue the blades to the round cardboard.
2. Poke four small holes in the disposable paper cup, insert the bamboo skewer into the small holes and stick the other end to the round cardboard. Apply clear tape to the solar panel and place the panel under the windmill. Place the windmill in the sun and see if it spins.
2. Make a magnetic car
1. Prepare the materials: 2 magnets, 2 car wheels, 1 battery box, 1 battery, 1 switch and some wires. Connect the battery box, battery, switch and wires to create a simple circuit.
2. Attach the magnets to both sides of the cart wheels so that they can rotate freely. Place another magnet next to the battery box and the car should be pushed forward when theswitch is pressed.
3. Make a simple weather instrument
1. Prepare the materials: 1 plastic bottle, 1 balloon, 1 thermometer, 1 hygrometer, tape and scissors. Cut the plastic bottle in half and tape the bottom half to the table. Place the balloon over the mouth of the plastic bottle and secure them together with tape.
2. Insert the thermometer and hygrometer inside the balloon and secure them to the balloon with tape. Place the entire device outside and observe changes in the weather data.
The importance of small technological productions
1. First of all, small technological productions can cultivate children's creativity and imagination. During the production process, children must constantly try, explore and improve. This process will stimulate their active thinking and allow them tostart from scratch.Think about problems from different angles to create unique works.
2. Second, small technology productions can improve children's hands-on ability and problem-solving ability. During the production process, children need to operate alone to complete assembly, construction and debugging. This process not only exercises their hand-eye coordination, but also allows them to learn problem solving and develop their independent thinking and problem-solving ability.
3. Third, small technological productions can enhance children's self-confidence and sense of accomplishment. When children complete a small technological production, they feel very proud and satisfied because it is their own creation. This increased sense of accomplishment and self-confidence will encourage them to show more courageto try and innovate in their future studies and lives.
4. Finally, small technological productions can also develop children's teamwork skills. During the production process, children can help each other, learn cooperatively and share experiences. This ability to work as a team is very important for the growth and development of children, allowing them to better adapt to social life.