Friction on Inclines
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Objective
I can predict whether an object will slide down an inclined plane based on the angle of the plane, the coefficient of friction, and the object's weight.
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
Define the coefficient of friction and explain how it affects the force of friction between two surfaces.
Describe the forces acting on an object placed on an inclined plane with friction. Include a free body diagram in your explanation.
Part 3 of 3
Exit ticket
Quick comprehension check
“A 30 kg box is placed on an inclined plane with an angle of 25° relative to the horizontal. A force of 50 N is applied upwards along the plane. The coefficient of static friction between the box and the plane is 0.4. Will the box slide up the plane, slide down the plane, or remain stationary? Show your calculations and explain your reasoning. A 20 kg block is placed on an inclined plane with an angle of 40° relative to the horizontal. The coefficient of kinetic friction between the block and the plane is 0.5. If the block is given an initial velocity of 5 m/s up the incline, how far will it slide before coming to rest? Show your calculations and explain your reasoning. A 10 kg object is placed on an inclined plane with an adjustable angle. The coefficient of static friction between the object and the plane is 0.3. At what angle will the object begin to slide down the plane? Show your calculations and explain your reasoning.”
Sample answer included in the free materials
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