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100+ Free DZI Physics and Astronomy Practice Questions

Prepare for the Bulgaria State Matriculation Examination in Physics and Astronomy (ДЗИ по физика и астрономия) exam with instant access — no signup required.

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2026 Statistics

Key Facts: DZI Physics and Astronomy Exam

240 minutes

Official written anonymous Physics and Astronomy DZI duration (4 hours)

Ministry of Education and Science (МОН), DZI organisation rules

30 / 100 points

Pass threshold Среден 3.00; scores are reported on a 0–100 point scale

Ordinance No. 11 of 1 September 2016 on assessment of student learning outcomes

22 May 2026, 08:30

2026 second compulsory DZI sitting (Втори задължителен ДЗИ)

МОН 2025/2026 DZI session timetable

ООП or ПП

Separate general-education and profiled-preparation Physics papers; sit the matching pathway

МОН DZI subject materials for Физика и астрономия

Bulgarian (bg)

Official examination language; this bank is an English MCQ study adaptation only

МОН DZI papers and taxonomy officialLanguages

Free 100-question English MCQ study bank for Bulgaria DZI Physics and Astronomy. Official exam: Bulgarian written anonymous 240-minute paper, 0–100 points, pass Среден 3.00 at 30/100, ООП or ПП. Second compulsory sitting 22 May 2026 at 08:30. Not an official format simulation; no published fee for regular school candidates.

Sample DZI Physics and Astronomy Practice Questions

Try these sample questions to test your DZI Physics and Astronomy exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A cart starts from rest and reaches 12 m/s after 4.0 s of constant acceleration. What is its acceleration?
A.2.0 m/s^2
B.3.0 m/s^2
C.4.0 m/s^2
D.48 m/s^2
Explanation: Acceleration is change in velocity divided by time: a = (12 m/s - 0) / 4.0 s = 3.0 m/s^2.
2A net force of 20 N acts on a 5.0 kg laboratory cart on a frictionless track. What is the cart's acceleration?
A.0.25 m/s^2
B.4.0 m/s^2
C.15 m/s^2
D.100 m/s^2
Explanation: Newton's second law gives a = F/m = 20 N / 5.0 kg = 4.0 m/s^2.
3A 2.0 kg object moves at 4.0 m/s. What is its kinetic energy?
A.4.0 J
B.8.0 J
C.16 J
D.32 J
Explanation: Kinetic energy is K = (1/2) m v^2 = 0.50 x 2.0 kg x (4.0 m/s)^2 = 16 J.
4A runner starts from rest and accelerates at 2.0 m/s^2 for 5.0 s. How far does the runner travel in that time?
A.5.0 m
B.10 m
C.25 m
D.50 m
Explanation: With u = 0, s = ut + (1/2) a t^2 = 0 + 0.50 x 2.0 x 25 = 25 m.
5What is the weight of a 3.0 kg mass near Earth's surface? Use g = 9.8 m/s^2.
A.3.0 N
B.9.8 N
C.29.4 N
D.0.31 N
Explanation: Weight is W = m g = 3.0 kg x 9.8 m/s^2 = 29.4 N.
6A constant 15 N force pushes a box 4.0 m in the direction of the force. How much work is done by this force?
A.3.8 J
B.11 J
C.19 J
D.60 J
Explanation: Work by a constant force along the displacement is W = F s = 15 N x 4.0 m = 60 J.
7A 0.20 kg ball moves at 25 m/s. What is the magnitude of its momentum?
A.0.0080 kg m/s
B.5.0 kg m/s
C.25 kg m/s
D.125 kg m/s
Explanation: Momentum is p = m v = 0.20 kg x 25 m/s = 5.0 kg m/s.
8A motor does 400 J of work in 8.0 s. What is its average power?
A.0.020 W
B.50 W
C.392 W
D.3200 W
Explanation: Average power is P = W / t = 400 J / 8.0 s = 50 W.
9A 10 kg crate rests on a horizontal floor. If the coefficient of static friction is 0.20 and g = 10 m/s^2, what is the maximum static friction?
A.2.0 N
B.20 N
C.50 N
D.200 N
Explanation: Maximum static friction is f_s,max = μ N = μ m g = 0.20 x 10 kg x 10 m/s^2 = 20 N.
10A 2.0 kg mass is raised 5.0 m at constant speed. Using g = 10 m/s^2, by how much does its gravitational potential energy increase?
A.10 J
B.25 J
C.100 J
D.250 J
Explanation: The change is ΔU = m g h = 2.0 kg x 10 m/s^2 x 5.0 m = 100 J.

About the DZI Physics and Astronomy Exam

The Bulgarian State Matriculation Examination (държавен зрелостен изпит, DZI) in Physics and Astronomy is a national written school-leaving exam administered by the Ministry of Education and Science. It may be taken as the second compulsory DZI or as an additional paper, on either the general-education (ООП) or profiled-preparation (ПП) programme. The official paper is in Bulgarian, lasts 240 minutes, is marked anonymously, and is scored 0–100 points with a pass of Среден 3.00 at 30 points. Content spans mechanics, molecular physics and thermodynamics, electrostatics and DC circuits, magnetism, oscillations and waves, geometric and wave optics, modern physics, and basic astronomy. This free English MCQ bank trains recognition of models, SI units, and standard calculations before students practise official Bulgarian papers.

Assessment

Official DZI Physics and Astronomy is a written, anonymously marked Bulgarian paper scored 0–100 points. Candidates sit either the ООП (общообразователна подготовка) paper or the ПП (профилирана подготовка) paper. Profiled content is organized around modules such as Motion and Energy, Field and Energy, Experimental Physics, and the XII microworld module (quanta, atom, nucleus). The official paper is not a pure MCQ exam. This 100-question bank is an English MCQ study adaptation only — it does not simulate the real constructed-response format.

Time Limit

4 hours (240 minutes) for the written anonymous test. For 2026, the second compulsory DZI sitting is 22 May at 08:30; additional Physics papers by choice follow the МОН May–June timetable.

Passing Score

0–100 points. Pass is Среден 3.00 at 30 of 100 points (Ordinance No. 11 of 1 September 2016). Below 30 points is Слаб 2.00.

Exam Fee

No published exam fee for regular school candidates; DZI is a state school examination taken through the Bulgarian secondary pathway. External-candidate arrangements, if any, are not a published Physics fee. (Ministry of Education and Science of the Republic of Bulgaria (Министерство на образованието и науката, МОН))

DZI Physics and Astronomy Exam Content Outline

Study emphasis ~22%

Mechanics

Kinematics, Newton’s laws, energy, momentum, circular motion, and mechanical power in SI units.

Study emphasis ~12%

Molecular physics and thermodynamics

Ideal-gas law, heat, first law, processes, and engine efficiency.

Study emphasis ~20%

Electrostatics, DC, and magnetism

Coulomb, circuits, capacitors, magnetic force, and induction.

Study emphasis ~12%

Oscillations and waves

SHM, v = fλ, standing waves, Doppler effect, and interference.

Study emphasis ~12%

Geometric and wave optics

Mirrors, refraction, thin lenses, TIR, and Young’s experiment.

Study emphasis ~14%

Modern physics

Photoelectric effect, Bohr atom, nucleus, decay, and mass–energy.

Study emphasis ~8%

Basic astronomy

Solar system, Kepler, seasons, stars, and redshift at DZI depth.

How to Pass the DZI Physics and Astronomy Exam

What You Need to Know

  • Passing score: 0–100 points. Pass is Среден 3.00 at 30 of 100 points (Ordinance No. 11 of 1 September 2016). Below 30 points is Слаб 2.00.
  • Assessment: Official DZI Physics and Astronomy is a written, anonymously marked Bulgarian paper scored 0–100 points. Candidates sit either the ООП (общообразователна подготовка) paper or the ПП (профилирана подготовка) paper. Profiled content is organized around modules such as Motion and Energy, Field and Energy, Experimental Physics, and the XII microworld module (quanta, atom, nucleus). The official paper is not a pure MCQ exam. This 100-question bank is an English MCQ study adaptation only — it does not simulate the real constructed-response format.
  • Time limit: 4 hours (240 minutes) for the written anonymous test. For 2026, the second compulsory DZI sitting is 22 May at 08:30; additional Physics papers by choice follow the МОН May–June timetable.
  • Exam fee: No published exam fee for regular school candidates; DZI is a state school examination taken through the Bulgarian secondary pathway. External-candidate arrangements, if any, are not a published Physics fee.

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

DZI Physics and Astronomy Study Tips from Top Performers

1Practise every calculation in SI units and write the target quantity, knowns, and formula before substituting numbers.
2For kinematics and energy, sketch the motion and mark whether acceleration, mechanical energy, or momentum is conserved.
3In circuit problems, redraw series and parallel groups and check that current, voltage, and power units match (A, V, W).
4For waves and optics, connect geometry to the formula: path difference, wavelength, focal length, and refractive index.
5After MCQ concept work, practise official Bulgarian DZI papers (ООП or ПП) under 240-minute conditions — MCQs build recognition, not constructed-response skill.

Frequently Asked Questions

Is the official DZI Physics and Astronomy exam a multiple-choice test in English?

No. The official paper is a Bulgarian-language written examination with mixed closed and constructed-response items. This bank is an English-language MCQ study adaptation — not an official format simulation.

What is the difference between ООП and ПП Physics papers?

ООП (общообразователна подготовка) tests general-education Physics and Astronomy. ПП (профилирана подготовка) is for students who studied Physics as a profile subject, covering the official modules (Motion and Energy, Field and Energy, Experimental Physics, and the XII microworld module). You sit the paper matching your pathway.

When is the 2026 Physics DZI?

The second compulsory DZI sitting in 2026 is 22 May at 08:30. Additional Physics papers by choice (ДЗИ по желание) follow the МОН May–June timetable for ООП and ПП variants.

How is the exam scored, and what is the pass mark?

Papers are scored 0–100 points. The pass threshold is Среден 3.00 at 30 of 100 points under Ordinance No. 11 of 1 September 2016. Works are marked anonymously.

Is there an exam fee?

No published exam fee applies for regular school candidates; DZI is a state school examination. Do not assume a Physics-specific fee that МОН has not published.