Friction on Inclined Planes
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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
List the forces acting on an object resting on an inclined plane with friction. For each force, briefly describe its direction.
Explain how the angle of an inclined plane affects the component of gravitational force 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 that makes an angle of 20° with the horizontal. 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 reasoning. A 100 kg crate rests on an inclined ramp at an angle of 15°. The coefficient of friction between the crate and the ramp is 0.15. Will the crate slide down the ramp? Show your calculations and explain your reasoning.”
Sample answer included in the free materials
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