Friction on Inclines

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Objective

I can predict whether an object will slide down an inclined plane based on the forces acting on it.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

List the forces acting on an object resting on an inclined plane with friction. For each force, describe its direction.

2

Explain how the angle of the inclined plane affects the component of gravity acting parallel to the plane (mg sin θ).

Part 3 of 3

Exit ticket

Quick comprehension check

A 20 kg box is placed on an inclined plane with an angle of 20°. The coefficient of friction between the box and the plane is 0.3. Will the box slide down the plane? Show your calculations and explain your answer. A 15 kg block is placed on an inclined plane with an angle of 35°. The coefficient of friction between the block and the plane is 0.7. Will the block slide down the plane? Show your calculations and explain your answer.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

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