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AP Physics 1 8.4 Fluids & Conservation Laws

Practise AP Physics 1 8.4 questions by applying continuity, Bernoulli’s equation and Torricelli’s theorem to ideal-fluid flow.

Syllabus
Effective Fall 2025
Course
AP Physics 1: Algebra-Based

Exam points

  • identify the governing concept or relationship in the problem
  • justify the result with equations, diagrams or contextual evidence

Covered syllabus points

8.4.A—Describe the flow of an incompressible fluid through a cross-sectional area by using mass conservation8.4.B—Describe the flow of a fluid as a result of a difference in energy between two locations within the fluid– Earth…

8.4 Fluids and Conservation Laws question 1

[Maximum number: 1]

A container of water (pictured below) has two holes in its side allowing two streams of water to emerge as shown. Initially, the lower hole is twice as deep as the higher hole. Which statement best compares the initial velocities of these two streams of water?

Figure for Question 8.4 Fluids and Conservation Laws question 1 — AP Physics 1: Algebra-Based
A

They emerge at the same speed.

B

The lower stream emerges 2122 \frac{1}{2} times as fast as the upper stream.

C

The lower stream emerges 2 times as fast as the upper stream.

D

The lower stream emerges 4 times as fast as the upper stream.

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