"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Courseware

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Courseware

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"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Courseware

1. Get to know pulleys

A wheel with a groove on its edge that can rotate around a central axis is called a pulley.

2. Study the fixed pulley

A pulley that rotates in one position and does not move, like the pulley on the top of a flagpole, is called a fixed pulley.

When we use a fixed pulley to lift a heavy object, in what direction do we need to exert force?

Push down

What does this mean about the fixed pulley?

Can change the direction of force

Knowledge points

The fixed pulley is fixed in one place and cannot move with the object.

The moving pulley is not fixed and can move with the movement of the heavy object.

Fixed pulleys can change the direction of force, but they cannot save effort.

Moving pulleys can save effort but do not change the direction of the force.

Test questions in class

1. True or False Questions (mark √ if correct, × if incorrect)

1. The fixed pulley on the top of the school flagpole does not save labor and can be completely dispensed with. ( )

2. The moving pulley saves effort. ( )

3. The pulley on the tower crane that moves with the weight is a fixed pulley ( )

4. The fixed pulley is also very labor-saving. ( )

5. The fixed pulley cannot change the direction of force. ( )

2. Multiple choice questions

1. The function of the pulley at the top of the flagpole is ( )

A. Can change the direction of force, but it does not save effort

B. It neither saves effort nor changes the direction of force.

C. It can save effort, but cannot change the direction of force.

2. What cannot change the direction of force on an object is ( ).

A. Moving pulley B. Fixed pulley C. Pulley block

3. The pulley on the tower crane that moves with the weight is ( )

A. Fixed pulley B. Moving pulley C. Pulley block

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For more information about the PPT courseware "Tools and Machinery Fixed Pulleys and Moving Pulleys", please click the Tools and Machinery ppt Fixed Pulleys and Moving Pulleys ppt tag.

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT teaching courseware:

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Teaching Courseware Part One: Introduction of New Lessons When raising the flag, our team members pull the rope downwards, why does the flag go up? Like the pulley on the top of a flagpole, it is fixed in one position and rotates...

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Download:

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Download Part One Content: New Exploration Lesson (1) The pulley on the top of the flagpole. Like the pulley on the top of the flagpole, a pulley that is fixed in one position and rotates without moving is called a fixed pulley. What we found: Fixed pulley lift..

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT:

"Fixed Pulleys and Moving Pulleys" Tools and Machinery PPT Part One: The Pulley on the Top of the Flagpole Let us simulate the flag-raising device to study the pulley on the top of the flagpole. A pulley that rotates in one position and does not move, like the pulley on the top of a flagpole, is called a fixed pulley.

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