AP® Physics C: Mechanics 2014 Free-Respon Questions
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C ∞ -2-
TABLE OF INFORMATION, EFFECTIVE 2012
meter,
m mole,mol watt,W farad,F kilogram,kg hertz,Hz coulomb,C tesla,T cond,s newton,N volt,V degree Celsius,ampere,A pascal,Pa ohm,W electron-volt,
eV
UNIT SYMBOLS
kelvin,
K
joule,
感冒可以吃什么水果
J
henry,
H
PREFIXES
心情很复杂的成语Factor Prefix Symbol
欧姆定律三个公式
109giga G 106mega M 103kilo k 10-2centi c 10
-3
milli m
10-6micro m 10-9
nano n 10-12
pico
p
The following conventions are ud in this exam.
I. Unless otherwi stated, the frame of reference of any problem is assumed to be inertial.
II.The direction of any electric current is the direction of flow of positive
charge (conventional current).
III.For any isolated electric charge, the electric potential is defined as zero at
an infinite distance from the charge.
ADVANCED PLACEMENT PHYSICS C EQUATIONS, EFFECTIVE 2012
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红烧鲳鱼怎么做好吃又简单-4-
2014 AP ® PHYSICS C: MECHANICS FREE-RESPONSE QUESTIONS
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PHYSICS C: MECHANICS
关联词大全SECTION II Time—45 minutes
3 Questions
Directions: Answer all three questions. The suggested time is about 15 minutes for answering each of the questions, which are worth 15 points each. The parts within a question may not have equal weight. Show all your work in this booklet in the spaces provided after each part.
Mech. 1.
In an experiment, a student wishes to u a spring to accelerate a cart along a horizontal, level track. The spring怎样鉴别和田玉
is attached to the left end of the track, as shown in the figure above, and produces a nonlinear restoring force of magnitude 2s F As =+Bs , where s is the distance the spring is compresd, in meters. A measuring tape,
marked in centimeters, is attached to the side of the track. The student places five photogates on the track at the locations shown.
(a) Derive an expression for the potential energy U as a function of the compression s . Express your answer in
terms of A , B , s , and fundamental constants, as appropriate.
