Friction on Inclines
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Objective
I can predict whether an object will slide down an inclined plane based on the forces of friction and gravity.
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
Explain in your own words why the force of gravity (mg) is broken down into components when analyzing motion on an inclined plane.
What is the relationship between the normal force and the component of gravity perpendicular to the inclined plane when the object is only subject to gravity, the normal force, and friction? Explain your answer.
Part 3 of 3
Exit ticket
Quick comprehension check
“A 20 kg box is placed on an inclined plane that makes an angle of 20° with the horizontal. The coefficient of friction between the box and the incline is 0.3. Will the box slide down the incline? Show your calculations to justify your answer. A 30 kg block is placed on an inclined plane that makes an angle of 40° with the horizontal. The coefficient of friction between the block and the incline is 0.5. Will the block slide down the incline? Show your calculations to justify your answer.”
Sample answer included in the free materials
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