Friction on Inclines

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Objective

I can explain how friction helps or prevents things from sliding down a ramp.

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

A wooden block slides down a ramp at a constant speed. If the ramp were made of a different material that provides twice as much friction, how would the angle of the ramp need to change to maintain the same constant speed? Explain your answer using the relationship between the angle, friction, and gravitational force.

2

Imagine you are designing a system to lower packages gently down a ramp. Describe how you could use different materials (with varying coefficients of kinetic friction) and ramp angles to control the speed of the packages. What trade-offs would you need to consider?

Part 3 of 3

Exit ticket

Quick comprehension check

Describe a situation where friction helps prevent a box from sliding down a ramp. Describe a situation where friction prevents a box from easily sliding down a ramp. Explain how increasing the friction between a box and a ramp will affect the box's ability to slide down the ramp.

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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  • Student Handout

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