Friction is FuN
DoNow: What clarification do you need to further understand the FBD, Fnet equation and solving for two unknown variables in two Fnet equations?
AIM: I can describe the relationship between the force of friction, the Normal or support force and the coefficient of friction and how to use a graph to determine the coefficient of friction between two surfaces.
Activities:
- Peer Share & Submit Lab4U Pilot Deliverable
- Submit The Tension HW; Reading Notes Ch 5-4: CQ7, CQ9, CQ11, CE7
- Tableshare Mew, Mew Mew HW; Reading Notes Ch 5-5: CQ13, CQ15, CQ17, CE9; ...Phenomenon WS; ...think about Newton's Laws?
- Friction is f uN Lab
- Reading Notes Ch 5-6 to 5-7: CQ19, CQ21, CQ25, CE11
- Pushing & Pulling HW
Homework:
Complete Friction is f uN Lab; Pushing & Pulling HW; Reading Notes Ch 5-6 to 5-7: CQ19, CQ21, CQ25, CE11; ...Phenomenon WS; ...think about Newton's Laws?
Coming Up:
Multi-Body Systems
Friction is f uN Lab, Due: Block, 21Oct15
Newton's Laws Test, TBA
Newton's Laws Test, TBA
posted by mister smith @ 7:00 AM
2 Comments
2 Comments:
While your lab data is undoubtedly awesome. You might consider using the class data for calculation, graphing and group work purposes.
2015 Pine Wood-Paper Interface Mass & Applied Force Data
Horizontal Pull (m,Fapp)
(0.23 kg, 0.8 N), (0.48 kg, 1.7 N), (0.98 kg, 3.4 N)
45 angle Pull (m, Fapp)
(0.23 kg, 0.9 N), (0.48 kg, 1.8 N), (0.98 kg, 3.6 N)
The Pushing and Pulling HW #2 was updated. #2 should read:
A 2.50 kg box is pulled horizontally across a plane by a 50.1 kg person using a string that makes an angle of 60.0° below the horizontal. The box just begins to slip when the person applies a 5.01 N force to the string.
I'll throw you an extra point on the HW, qh in 1st period.
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