IB Physics Practice Test 2026
AI-generated IB Physics practice sets for Mechanics, Thermal Physics, Waves, Electricity & Magnetism, with scoring and explanations. Start with 30 free question credits on signup.
About the IB Physics exam
The International Baccalaureate - Physics (IB Physics) is a ib diploma examination administered in International 🌍. It is designed to assess candidates' knowledge and proficiency across 6 key subject areas including Mechanics, Thermal Physics, Waves, Electricity & Magnetism. This exam is widely recognized as an essential benchmark for students and professionals.
Use short IB Physics practice sets to identify topics to revisit. Choose a subject and difficulty, answer questions, then review the explanations. New accounts get 30 question credits; further new questions use paid credits. Retaking previously seen questions is free.
Whether you're a first-time candidate or retaking the IB Physics to improve your score, InfinityMock helps you identify your strengths and weaknesses through detailed performance analytics. Our platform covers Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics, with questions available at Easy, Medium, and Hard difficulty levels. Track your progress, review detailed explanations, and build the confidence you need to pass on exam day.
IB Physics — quick answers
What is the IB Physics?
The International Baccalaureate - Physics (IB Physics) is a ib diploma examination taken in International 🌍. It assesses 6 subject areas: Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics.
Where can I find free IB Physics practice questions?
This page carries 8 free IB Physics practice questions, each with a worked explanation. No account is needed to read them. Sign up for 30 free question credits to continue with a subject practice set.
What subjects does the IB Physics cover?
Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics. On InfinityMock you can practise a single subject or take a mixed test across all 6.
How much does InfinityMock cost?
New accounts get 30 question credits free. After that, 30 credits cost $1 and 150 credits cost $5. One credit covers one new question; re-attempting a question you have already seen is always free.
IB Physics at a glance
| Exam | International Baccalaureate - Physics (IB Physics) |
|---|---|
| Category | IB Diploma |
| Country / region | International 🌍 |
| Subjects covered | 6 — Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics |
8 free IB Physics practice questions (2026)
Answer these first — no signup, no card. Every answer is explained. For more practice, sign up for 30 free question credits and choose a subject above.
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A wire carries a current of 2.0 A. How many electrons pass a point in the wire in 1.0 second?
- 1.3 x 10^19
- 2.0 x 10^19
- 1.3 x 10^18
- 2.0 x 10^18
Show answer & explanation
Answer: A. 1.3 x 10^19
Use the formula I = Q/t, where Q = ne. So n = It/e = (2.0 A)(1.0 s)/(1.6 x 10^-19 C) = 1.25 x 10^19 electrons.
Topic: Electricity & Magnetism · medium
-
Two parallel wires carry currents in opposite directions. What is the nature of the force between the wires?
- Attractive
- Repulsive
- Zero
- Torque
Show answer & explanation
Answer: B. Repulsive
Parallel wires carrying currents in opposite directions experience a repulsive force.
Topic: Electricity & Magnetism · medium
-
A proton enters a uniform magnetic field. The velocity of the proton is perpendicular to the magnetic field. What is the subsequent path of the proton?
- A straight line
- A circle
- A spiral
- A parabola
Show answer & explanation
Answer: B. A circle
When a charged particle moves perpendicular to a uniform magnetic field, it experiences a force that causes it to move in a circular path.
Topic: Electricity & Magnetism · medium
-
What is the unit of magnetic flux?
- Tesla
- Weber
- Ampere
- Henry
Show answer & explanation
Answer: B. Weber
The unit of magnetic flux is the Weber (Wb).
Topic: Electricity & Magnetism · medium
-
A transformer has 100 turns in its primary coil and 500 turns in its secondary coil. If the voltage across the primary coil is 120 V, what is the voltage across the secondary coil?
- 24 V
- 600 V
- 120 V
- 12 V
Show answer & explanation
Answer: B. 600 V
Using the transformer equation: Vp/Vs = Np/Ns. Vs = Vp * (Ns/Np) = 120 V * (500/100) = 600 V.
Topic: Electricity & Magnetism · medium
-
Which of the following describes the direction of the magnetic field around a long, straight wire carrying a current?
- Parallel to the wire
- Perpendicular and directed towards the wire
- Perpendicular and directed away from the wire
- Circular around the wire
Show answer & explanation
Answer: D. Circular around the wire
The magnetic field forms concentric circles around the wire, according to the right-hand rule.
Topic: Electricity & Magnetism · medium
-
What is the effect on the capacitance of a parallel-plate capacitor if the distance between the plates is doubled?
- The capacitance doubles
- The capacitance halves
- The capacitance remains the same
- The capacitance quadruples
Show answer & explanation
Answer: B. The capacitance halves
Capacitance is inversely proportional to the distance between the plates (C = εA/d). Doubling the distance halves the capacitance.
Topic: Electricity & Magnetism · medium
-
What is the SI unit of electric potential?
- Ampere
- Coulomb
- Volt
- Ohm
Show answer & explanation
Answer: C. Volt
The SI unit of electric potential (voltage) is the volt (V).
Topic: Electricity & Magnetism · medium
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IB Physics Exam Subjects
Available practice subjects: Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics. Select a subject for focused preparation. Coverage is not a guarantee of the complete official syllabus.
📖 IB Physics Study Guide
Read our comprehensive How to Pass the IB Physics in 2026 — Complete Study Guide for expert preparation tips, study plans, and strategies.
🔗 Related Exams
Students preparing for IB Physics also practice for:
Frequently Asked Questions
Is this IB Physics practice test free?
Yes! InfinityMock offers free IB Physics practice tests with 30 complimentary credits on signup. Each AI-generated question costs 1 credit, and previously seen questions are always free to retake.
How many IB Physics practice questions are available?
InfinityMock offers AI-generated practice in Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics. One new question costs one credit; new accounts receive 30 free credits. These are independent practice questions, not official exam questions.
What subjects does the IB Physics practice test cover?
Our IB Physics mock test covers: Mechanics, Thermal Physics, Waves, Electricity & Magnetism, Nuclear Physics, Astrophysics. You can choose specific subjects or take a comprehensive test across all areas.
Does this reproduce the official IB Physics exam?
No. InfinityMock provides multiple-choice practice sets with explanations and progress tracking. Question types, timing, syllabus coverage, and scoring can differ from the official exam. Use your exam body's current syllabus and official practice materials alongside these sets.
How does the AI-powered IB Physics mock test work?
Simply select IB Physics from our exam list, choose your subject and difficulty level, and our AI instantly generates a custom mock test. After completing the test, you get detailed explanations, performance analytics, and a grade.
Can I retake the IB Physics practice test?
Absolutely! You can retake any IB Physics mock test as many times as you want. Previously seen questions are always free, so retakes cost no credits. You can also generate completely new questions each time.
What is the best way to prepare for the IB Physics?
The most effective strategy is consistent practice with realistic questions. Use InfinityMock to take regular mock tests, review your wrong answers with detailed explanations, track your progress over time, and focus on your weakest subjects. Start with easy difficulty and gradually increase to hard.
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