"Resisting Bending" Shape and Structure PPT Courseware 4

Description

"Resisting Bending" Shape and Structure PPT Courseware 4

We call materials placed horizontally like bridges and roof beams: beams

Many houses and bridges are supported by upright materials (pillars) and horizontal materials (beams)

What factors are related to the bending resistance of bridges?

Do you think:

1. Related to the material of the bridge

2. Depends on the length of the bridge

3. Depends on the width of the bridge

4. Depends on the thickness of the bridge

Study 1: Paper width and bending resistance

This is a comparative experiment, please note:

1. What conditions should be kept constant in the experiment? How do we keep these conditions constant?

2. What conditions need to be changed in the experiment? How are we prepared to change?

Kind tips:

1. Predict first, then experiment, then record, and finally summarize the findings based on the experimental data.

2. During the experiment, pay attention to the fact that the distance between the pillars (books) remains unchanged. Remember the number of centimeters between the pillars. Use a ruler to measure the distance between the pillars before each experiment.

3. During the experiment, heavy objects (nuts) should be placed gently in the middle of the paper bridge to avoid collapsing the paper bridge.

4. The paper bridge collapses when it hits the bottom. The last heavy object (nut) that caused the collapse cannot be counted.

5. Ask each group to experiment quietly. After completing the group, please sit upright and compare which group is faster and quieter.

Study 2: Paper thickness and bending resistance

1. What conditions should be kept constant in the experiment? How do we keep these conditions constant?

2. What conditions need to be changed in the experiment? How are we prepared to change?

Kind tips:

1. Predict first, then experiment, then record, and finally summarize the findings based on the experimental data.

2. During the experiment, pay attention to the fact that the distance between the pillars (books) remains unchanged. Remember the number of centimeters between the pillars. Use a ruler to measure the distance between the pillars before each experiment.

3. During the experiment, heavy objects (nuts) should be placed gently in the middle of the paper bridge to avoid collapsing the paper bridge.

4. The paper bridge collapses when it hits the bottom. The last heavy object (nut) that caused the collapse cannot be counted.

5. Ask each group to experiment quietly. After completing the group, please sit upright and compare which group is faster and quieter.

in conclusion

The relationship between the width of the paper beam and the bending resistance is: the wider the paper beam, the stronger the bending resistance.

The relationship between the thickness of the paper beam and its bending resistance is: the thicker the paper beam, the greater its bending resistance.

constant quantity

The height of the raised beam remains unchanged (the height of the column)

The standard of "bent" remains unchanged - the paper touches the table

The overhead distance of the paper beam remains unchanged

The position of the gasket remains unchanged

Keywords: Shape and Structure Teaching Courseware, Resistance to Bending Teaching Courseware, Educational Science Edition Sixth Grade Science PPT Courseware Download, Sixth Grade Science Slide Courseware Download, Shape and Structure PPT Courseware Download, Resistance to Bending PPT Courseware Download, .PPT format;

For more information about the "Shape and Structure Resistance to Bending" PPT courseware, please click the Shape and Structure ppt Resistance to Bending ppt tab.

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Update Time: 2024-11-19

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

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