2016 AP Physics 1物理Algebra-Based真題系列之Practice Exam簡答題免費下載

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2016 AP Physics 1 Algebra-based Practice Exam Free-Response Questions Free Download

2016 AP 物理1模考簡答題部分免費下載

此套題僅 Section II含有簡答題，

共計時1小時30分鐘，共5題

占總分50%

每道大題可能含有不同數量的小題

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部分真題預覽：

1）Two blocks A and B of equal mass m are on a frictionless track, as shown in the figure above. Block A, initially moving with speed v₁ , has a perfectly elastic collision with block B. Block B has a speed v₁ immediately after the collision, and then it travels around a circular loop of radius R, where R is much larger than the size of the blocks. The speed of block B at the top of the loop is v_top. Block B then slides up a ramp until it comes momentarily to rest at a height h above the floor.

1. Derive an equation for the height h in terms of m, R, vtop , and g, as appropriate.
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2. Suppose that the speed v₁ of block A is doubled. Will the final height of block B be greater than, less than, or equal to 2h ?
   ____ Greater than ____ Less than 2h ____ Equal to
   Briefly explain how you arrived at your answer.
3. Blocks A and B (both of mass m) are moved to a different frictionless track, as shown above. Let v_A be the minimum initial speed for block A that allows block B to make it over the hump in the track. Block A is then replaced with a larger block, block C, which has mass 2m, as shown below. Block C makes a completely inelastic collision with block B so that both blocks stick together and travel along the track. What is the minimum initial speed v_C that block C must have so that the two-block system makes it over the hump? Express your answer in terms of v_A .