"The Movement of Cars" Toys Around You PPT Courseware 2

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"The Movement of Cars" Toys Around You PPT Courseware 2

The relationship between the speed of the car's movement and the magnitude of the push and pull forces

Experimental equipment: timer, trolley, ruler, hook code, cotton thread.

experiment procedure:

1. Use the pulling force of 1 hook code to test the time it takes for the trolley to travel a distance of 90 cm.

2. Use the pulling force of 3 hook codes to test the time it takes for the trolley to travel a distance of 90 cm.

3. Use the pulling force of 5 hook codes to test the time it takes for the trolley to travel a distance of 90 cm.

Notes: The team has a clear division of labor and good observation records. Each set of experiments was performed at least three times to ensure the accuracy of the experiment.

The relationship between the speed of the car and the pulling force

The car maintains a certain weight, and the speed of the car's movement is related to its power: the greater the power, the faster it moves, and the smaller the power, the slower it moves.

The relationship between the speed of the trolley and the load

●Under a certain power, the movement speed of the trolley is related to the load capacity of the trolley: the greater the load capacity, the slower the movement speed.

●The load capacity of the trolley is also related to the force that changes its motion state: the greater the load capacity of the trolley, the greater the force to start the trolley, and the greater the force to prevent the movement of the trolley.

The relationship between the motion of the car and friction

Under the condition that the car maintains a certain power and weight: the greater the friction, the slower the car moves; the smaller the friction, the faster the car moves.

Different methods can be used to friction or reduce friction according to different needs. For example: changing the size of the contact surface, changing the smoothness of the contact surface, changing the movement of the object, etc.

What is the relationship between the movement of the car and

The forces that make the car move: gravity, elastic force, reaction force and recoil force.

Some factors that affect the movement of the car: power, weight of the car and friction.

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For more information about the PPT courseware "The Car's Movement with Toys Around You", please click on the "The Car's Movement with Toys Around You" ppt tag.

"Motion of Cars" PPT courseware download:

Download the PPT courseware on the motion of the car. Think about it: What methods can you use to make this car without any power device move? Watch and think: 1. What will happen to the objects that are pushed and pulled in the picture? 2. What are the effects of changes in objects? ... ....

"Motion of Cars" PPT download:

Qingdao version of the third grade science in the second volume, the movement of the car PPT download, the first part of the content: classroom experiment hands-on experience using a small rope to pull the car to move on the table, the other end of the small rope is tied to a washer, change the number of washers, feel the gravity, by The pulling force generated by the gravity of the washer..

"The Movement of Cars" PPT courseware:

Qingdao version of the third grade science volume 2, the movement of the car PPT courseware, the first part of the content: Give it a try Try it: How to make the car in your hand move? Do it: Requirements: Collaborate with the tablemates to complete the illustrated actions and feel the existence of push and pull. Group discussion...

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Update Time: 2024-06-30

This template belongs to science courseware E-education edition third grade science volume 1 industry PPT template

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