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"Our Little Cable Car" Sports and Force PPT Courseware
Experiment and think:
1. How to make the car drive smoothly on the table without going off track?
The rope is hung in the middle of the front of the car. When driving, the rope, the front of the car, and the edge of the table remain vertical.
2. How to prevent the cart from falling off the table?
block with hands
3. How many washers are needed to make the car move?
2-3 pieces
4. What role does the iron washer play in the device?
pull cart
Experimental plan on the relationship between pulling force and car movement
Our question: Is the pulling force related to the speed of the car?
Our hypothesis: If the pulling force is large, the car will move fast; if the pulling force is small, the car will move slowly
Changing conditions: Number of washers
Experimental requirements:
1. Please keep quiet during the experiment and explore like a scientist. If you need to discuss or communicate, please do so softly.
2. During the experiment, the groups work together and perform their respective duties.
3. Experiment carefully, observe carefully, record in time, analyze data, and draw conclusions.
4. When you hear the teacher’s instruction to stop activities, please stop all activities immediately and sit down quickly.
What we found:
The speed of the car's movement is related to the magnitude of the pulling force. The greater the pulling force, the faster the car moves; the smaller the pulling force, the slower the car moves.
It is gravity that pulls the car.
Gravity is the force exerted on objects due to the attraction of the Earth. When we carry water, we feel the downward pull of the bucket on our hands; when we carry a schoolbag, we feel the downward pressure of the schoolbag on our shoulders. Objects are subject to a downward force, which is gravity.
The apples on the tree fall down, the ball thrown upward will eventually fall back to the ground, we slide down the slide, the water flows down... these movements are all due to the action of gravity.
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"Our Little Cable Car" Movement and Force PPT download:
"Our Little Cable Car" Movement and Force PPT Download Part One Content: Hands-on practice of installing a small cable car Experimental purpose Installing a small cable car experimental equipment body, wheels, washers, wires Experimental steps 1. Provide materials; 2. Install the car; 3 .Let the car move..
"Our Little Cable Car" Movement and Force PPT:
"Our Little Cable Car" Movement and Force PPT Part One: Installing a Small Cable Car Thousands of years ago, humans invented the car. What different types of cars do we know about? What power do they rely on to move? The pulling power of a carriage horse, the power of a car engine, a battery car...
"Our Little Cable Car" Movement and Force PPT Courseware 4:
"Our Little Cable Car" Motion and Force PPT Courseware 4 Our Little Cable Car 1. When installing the small cable car, where should the rope be tied to the car? Is it related to the direction of movement of the car? 2. Is the length of the rope related to the distance the car travels on the table? How long...