課程名稱︰普通物理學甲上
課程性質︰資工系選修兼通識A7
課程教師︰傅昭銘
開課學院：電資學院
開課系所︰資工系
考試日期（年月日）︰2012/11/
考試時限（分鐘）: 120 mins
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
Part1 (30%) Single Choice (30points, 1.5 points each)
1. The position of a nanoparticle as a function of time is
x(t) = t^2-t-6, where x is measured in meters, t is measured
in seconds and t>0. When is the speed of the nanoparticle zero?
(A) when t = 0.5 s (B) when t = 2s
(C) when t = 3 s (D) The speed of the nanoparticle is never zero.
2. An object moves from a point with coordinates x = 0.0 m, y = -1.0 m,
to a point with coordinates x = 5.0m, y = -13.0 m in a time interval
of 4.0 seconds. The magnitude of its average velocity is
(A) 6.2m/s (B) 5.0m/s (C) 7.3m/s (D) 3.3 m/s
3. Tennis ball A is dropped from a height of 15 m. Tennis ball B is
thrown horizontally from a height of 15 m with a horizontal velocity
of 25 m/s. Which tennis ball hits the ground first?
(A) ball A
(B) ball B
(C) They both hit at the same time.
(D) Neither ball hits the ground.
4. The two blocks in the figure have masses M1 and M2 such that M1<M2
and they lay on a level, frictionless surface. We can apply a horizontal
force F either from the left or from the right, as depicted in the figure.
The contact force between masses M1 and M2 is
(A) the same in either case.
(B) larger when F is applied from the left.
(C) larger when F is applied from the right.
(D) zero newtons.
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F