"The Function of Inclined Plane" Tools and Machinery PPT Courseware

Description

"The Function of Inclined Plane" Tools and Machinery PPT Courseware

It’s so dangerous to drive with so many turns! Can you be as straight as possible?

Put a wooden board between the carriage and the ground to form an inclined surface.

Place the object on this surface and push or pull it up along the surface.

This surface becomes one of the simple machines - the inclined surface.

experiment plan

Experiment Name: Studying the Effect of Inclined Planes

Experimental equipment: Incline, weights, dynamometer

Experimental steps:

1. Set up the experimental device.

2. First measure the force that directly lifts the object, and then measure the force that lifts the object along the incline.

3. Change the weight of the object and repeat step 1.

4. Discuss and organize experimental findings.

Kind tips:

1. You can only change the weight of the object, but not the height of the incline.

2. The requirement of pulling the dynamometer is to move in a straight line at a constant speed and read while pulling.

3. Record while experimenting and think about what you discovered.

What kind of slope is labor-saving?

If there are two equally strong wooden boards, one long and one short (they can be built from the ground to the car compartment), which board do you choose? Why?

Findings from Experiment 1: Inclined surfaces save effort.

The findings of Experiment 2: Slopes with different slopes can save effort. The smaller the slope, the more labor-saving. The larger the slope, the less obvious the labor-saving situation.

I am the best

Why do mountain roads have to be winding? What are the benefits of this?

The winding mountain road forms an S shape, which can effectively reduce the slope of the slope and achieve a more labor-saving effect, allowing cars to climb up and drive easily.

inclined plane

1. The combination of the movable pulley and the fixed pulley forms a _______.

2. The pulley combination combines the advantages of the movable pulley and the fixed pulley, and can both _______ and _______.

3. Pulleys can be divided into _______, _______, and _______ according to different assembly methods.

4. A simple machine like a wooden board placed on a car compartment is called _______.

5. The smaller the slope of the incline, the _______; lifting the heavy object directly vertically upward is equivalent to the slope of _______ degrees, and the maximum force is _______.

judge

1. Compared with going up the mountain directly and going up the winding road, the former is laborious but takes a shorter distance, while the latter saves effort but takes a longer distance. ( )

2. The use of inclined surfaces saves effort. ( )

3. The screwdriver is made using only the principle of bevel. ( )

4. By placing a wooden board on wooden blocks of different heights, you can make several slopes with different slopes. ( )

5. Screws are made by applying the principle that inclined surfaces can save labor. ( )

Experimental question: Does the slope of the incline affect labor saving?

1. Experimental plan:

My guess: It has an impact. The smaller the slope of the incline, the less effort it takes (the larger the slope of the incline, the less effort it takes).

Experimental materials: weights, dynamometer, 3 wooden boards of different lengths, and a small wooden block

Conditions that need to be changed: slope of the slope

Conditions that do not need to be changed: the height of the slope, the object being measured, and the measuring tools

Operation method: Put four wooden boards on the same wooden block one after another to make four inclined planes with different slopes. Pull the weights up along these inclined planes. Use a dynamometer to measure the force used and record each type. The amount of force exerted on the incline.

2. Experimental results: When the weight of the object and the height of the slope are constant, the slope can save effort. The longer the slope (the smaller the slope), the more labor-saving it is. The shorter the slope (the larger the slope), the less labor-saving it is.

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For more information about the PPT courseware "The Function of Tools and Machinery Slopes", please click the "The Function of Tools and Machinery ppt Slopes" ppt tag.

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Update Time: 2024-09-25

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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