Conceptual Physics Chapter 11 Outline Presentation

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Conceptual PhysicsChapter 11Outline Presentation

• Created for CVCA Physics
• By
• Dick Heckathorn
• 20 January 2K 5

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Chapter 11 Outline Presentation
Next Time Questions Investigations 3 11-2
NTQ 29 33 4 11-3 NTQ 30 34 Fig A 31
34 Fig B Concept Development 32 34 Fig C 6
11-1 CD 1 13 11-1 CD 2 Rat Stuff 16 11-1 CD
3 33 RS 1 17 11-2 CD 2.0 26 11-3 CD A 27
11-3 CD B 28 11-3 CD C
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NTQ 11-1 -2
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NTQ 11-1 -3
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Answer
NTQ 11-1 -3a
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CD 11-1
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What is the balance point of bar A-B-C and
weights?
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Where hang lower bar to bar
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12 kg
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CD 11-1 -2a
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CD 11-1 -2b
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CD 11-1 -2c
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CD 11-1 -3
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CD 11-2 -2.0
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CD 11-2 -2.1
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CD 11-2 -2.2
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CD 11-2 -2.3
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CD 11-2 -2.4
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CD 11-2 -2.5
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CD 11-2 -2.6
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CD 11-2 -2.7
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CD 11-2 -2.8
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CD 11-3 -A
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CD 11-3 -B
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CD 11-3 -C
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113
Inv 33
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Inv 34 Fig A
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Inv 34 Fig B
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Inv 34 Fig C
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34
RS 1
The cam mounted to the main shaft of the flat
spring motor turns in a counterclockwise
direction.
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RS 2
The force of the cams rotation against the leg
armature causes the main coil spring to be
stretched (storing energy) and the torso of the
mouse to be pushed downward and forward.
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RS 3
When the rotating cam reaches its point of
disengagement with the leg armature, the energy
stored in the main coil spring is released
causing the
torso of the mouse to be jettisoned backwards and
upwards momentarily overcoming the effects of
gravity.
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RS 4
The backward and upward inertia that the main
coil spring imparts to the torso causes the mouse
to rotate around its own center of gravity.
164
38
RS 5
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RS 6
Note. The energy stored and released from the
main coil spring has been adjusted to impart the
proper amount of inertia to allow the mouse to
land back on its feet.