"Motion and Friction" Motion and Force PPT

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"Motion and Friction" Motion and Force PPT

Part One: Object Movement and Friction

When an object moves on the surface of another object, friction occurs at the contact surface between the two objects. Therefore, the moving object experiences a force that hinders its movement. This force is called friction.

Friction can be felt.

Put your hand on the table and drag it. How much force do you feel?

Lift your hands off the table and do the same movement. How much force does it feel like?

Compare, what is the difference between the two force levels?

The amount of friction can be measured.

When we use a dynamometer to pull an object in the horizontal direction, the force just enough to make the object move is equivalent to the friction force it experiences.

Let's measure the friction force experienced by several objects as they move.

Motion and Friction PPT, Part 2: The relationship between the magnitude of friction and the condition of the contact surface

Some surfaces of objects are smooth and some are rough. What is the relationship between the friction force and the smoothness of the contact surface?

What kind of ground is easy to pull on?

Design experiments to test our conjectures.

What conditions should be changed in the experiment and how?

What conditions cannot be changed in an experiment, and how can one keep them constant?

Motion and Friction PPT, Part 3: The relationship between the magnitude of friction and the weight of an object

Some moving objects are light and some are heavy. Speculate how the magnitude of the friction force is related to the weight of the object.

Can we design another experiment to test our conjecture?

What conditions should be changed in the experiment and how?

What conditions cannot be changed in an experiment, and how can one keep them constant?

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"Motion and Friction" Motion and Force PPT download:

"Motion and Friction" Motion and Force PPT Download Part One Content: New Lesson Preliminary Study When an object moves on the surface of another object, friction will occur at the contact surface of the two objects, so the moving object will be subject to a force that hinders the movement. This force is called friction. ..

"Motion and Friction" Motion and Force PPT Courseware 5:

"Motion and Friction" Motion and Force PPT Courseware 5 When an object moves on the surface of another object, friction will occur at the contact surface of the two objects. When friction occurs, a moving object experiences a force that hinders its movement. This force is called friction. We used a dynamometer along the water...

"Motion and Friction" Motion and Force PPT Courseware 4:

"Motion and Friction" Motion and Force PPT Courseware 4 When an object moves on the surface of another object, friction will occur at the contact surface of the two objects. A moving object is subject to a force that hinders its movement. This force is called friction. Experiment 1: Friction force and contact..

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Update Time: 2024-09-27

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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