Physics CBE — Practice Tests & Mock Exams

Motion, forces, energy, momentum, thermodynamics, waves, electricity, and modern physics. Covers TEKS §112.39.

Built for the Texas CBE — also used by Algebra 1 students in 9 states and 5 countries

Semester A

52 questions · 180 min · 80% to pass

Free Practice (10)

Semester B

51 questions · 180 min · 80% to pass

Free Practice (10)

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Already took a free practice? Here's what your score means.

85%+ cold

You're likely ready for the official Physics Credit by Examination. Register with your counselor and take 1–2 full timed mocks to lock it in.

70–85%

Solid foundation, real prep needed. 4–6 weeks of timed mocks ($19.99 / 6 mo) with AI explanations on every wrong answer.

Under 70%

Concept-level gaps. Start with the Concept Lessons below, then return to practice once the underlying topic clicks.

Passing-score thresholds vary by district (Texas state code: 80% for §28.023 acceleration, 70% for §74.24 prior-instruction credit). Confirm your specific district's threshold with your school counselor in writing.

Learn the Concepts

Visual lessons that build Physics from first principles — diagrams, worked examples, embedded practice.

Concept Lesson · 10 min· TEKS 1

物理学1A：科学过程与测量

物理课堂的实验室安全、作为学科的科学方法、测量的精密度与准确度、SI单位，以及如何从图形中读出运动。CBE预设你已具备的基础。

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Concept Lesson · 12 min· TEKS 2

物理 1A:一维运动(运动学)

位置、位移、速率、速度和加速度 — 物理学家描述运动所用的语言。物理 A 学期 CBE 中几乎所有一维问题都能靠四个运动学方程解决,而运动图像更能让你完全跳过代数计算。

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Concept Lesson · 14 min· TEKS 3

物理1A: 牛顿定律与力的应用

牛顿三大定律 — 物理学家用来解释物理A学期所有运动问题的基本框架。重量与质量的区分,能提前发现代数错误的自由体图,以及大多数学生容易搞错的作用-反作用力对的微妙之处。

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Concept Lesson · 13 min· TEKS 4

物理 1A：万有引力与基本相互作用

牛顿万有引力定律、距离加倍时力变为原来 1/4 的平方反比关系、不同天体上的重量与不变的质量，以及引力在宇宙四种基本相互作用中的位置。

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Concept Lesson · 15 min· TEKS 5

物理 1A：能量、功、功率与动量

力学中的三大核心量——能量、动量与功率——以及三大守恒定律，帮助你在几乎所有问题中无需逐一追踪每一个力就能求解。涵盖动能定理、动能与势能之间的转换、冲量，以及弹性碰撞与非弹性碰撞的本质差异。

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Concept Lesson · 14 min· TEKS 6

物理1A:热、温度与热力学三大定律

温度与热的区分——物理1A CBE最常考的概念之一。本课覆盖比热容Q=mcΔT的计算陷阱、传导/对流/辐射三种热能传递机制的辨识、热机效率e=W/Q_H与卡诺极限、材料的热膨胀及水在4°C以下的反常收缩,以及规定任何物理过程能做什么、不能做什么的热力学第零、第一、第二定律,并配有热水冷水混合的例题和自我检测题。

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Try a Sample Physics Question

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With Diagram · TEKS 1

The diagram shows electric field lines around two point charges. What is the sign of each charge?

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With Diagram · TEKS 3

The diagram shows a straight wire carrying current I to the right, placed in a magnetic field B pointing INTO the page. What is the direction of the...

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With Diagram · TEKS 2

In the circuit shown, a 12 V battery drives current through two resistors in series: R₁ = 4 Ω and R₂ = 8 Ω. What is the current through R₁?

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