100+ Free NSC Physical Sciences Practice Questions

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Which equation of motion correctly relates final velocity, initial velocity, acceleration and time for uniform acceleration?

v = u + at

s = ut²

v = u + a/t

v² = u + 2as

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Key Facts: NSC Physical Sciences Exam

NSC Physical Sciences is South Africa's Grade 12 matric exam in physics and chemistry: two 150-mark papers (Paper 1 Physics, Paper 2 Chemistry), 3 hours each, graded on a 7-level CAPS scale.

Sample NSC Physical Sciences Practice Questions

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

1Newton's second law of motion is best expressed by which equation?

A.F = m/a

B.F = mv

C.F_net = ma

D.a = Fm

Explanation: Newton's second law states that the net force on an object equals the product of its mass and acceleration: F_net = ma. The acceleration is in the same direction as the net force.

2A 5 kg object experiences a net force of 20 N. What is its acceleration?

A.100 m·s⁻²

B.4 m·s⁻²

C.0.25 m·s⁻²

D.25 m·s⁻²

Explanation: Using Newton's second law, a = F_net / m = 20 N / 5 kg = 4 m·s⁻². Acceleration is the net force divided by the mass.

3Which equation of motion correctly relates final velocity, initial velocity, acceleration and time for uniform acceleration?

A.v = u + a/t

B.v² = u + 2as

C.s = ut²

D.v = u + at

Explanation: For constant acceleration, v = u + at, where v is final velocity, u is initial velocity, a is acceleration and t is time. This is one of the standard kinematics equations on the NSC information sheet.

4An object starts from rest and accelerates uniformly at 2 m·s⁻² for 5 s. What is its final velocity?

A.2.5 m·s⁻¹

B.10 m·s⁻¹

C.7 m·s⁻¹

D.0.4 m·s⁻¹

Explanation: Using v = u + at with u = 0, a = 2 m·s⁻² and t = 5 s: v = 0 + (2)(5) = 10 m·s⁻¹.

5In free fall near the Earth's surface (ignoring air resistance), the acceleration of an object is approximately:

A.0 m·s⁻²

B.9.8 m·s⁻² downward

C.9.8 m·s⁻² upward

D.depends on the mass

Explanation: An object in free fall experiences only gravity, giving it a downward acceleration of approximately 9.8 m·s⁻² (g). This is independent of mass.

6A ball is thrown vertically upward at 20 m·s⁻¹. Taking g = 10 m·s⁻², how long does it take to reach its highest point?

A.4 s

B.1 s

C.2 s

D.200 s

Explanation: At the highest point the velocity is 0. Using v = u + at (taking up as positive, a = -10): 0 = 20 + (-10)t, so t = 2 s.

7The linear momentum of an object is defined as:

A.p = ma

B.p = mv

C.p = ½mv²

D.p = mgh

Explanation: Momentum (p) is the product of an object's mass and velocity: p = mv. It is a vector quantity measured in kg·m·s⁻¹.

8A 2 kg trolley moves at 3 m·s⁻¹. What is its momentum?

A.1.5 kg·m·s⁻¹

B.9 kg·m·s⁻¹

C.6 kg·m·s⁻¹

D.0.67 kg·m·s⁻¹

Explanation: Momentum p = mv = (2 kg)(3 m·s⁻¹) = 6 kg·m·s⁻¹, directed in the direction of motion.

9Impulse is equal to:

A.mass times acceleration squared

B.the change in kinetic energy

C.force divided by time

D.the change in momentum

Explanation: The impulse–momentum theorem states that impulse (F_net·Δt) equals the change in momentum (Δp). This follows directly from Newton's second law in terms of momentum.

10A 0.5 kg ball moving at 4 m·s⁻¹ is brought to rest. What is the magnitude of the impulse on the ball?

A.8 N·s

B.0.5 N·s

C.2 N·s

D.4 N·s

Explanation: Impulse equals change in momentum: Δp = mΔv = (0.5)(0 − 4) = −2 kg·m·s⁻¹. The magnitude is 2 N·s.

About the NSC Physical Sciences Exam

NSC Physical Sciences is the Grade 12 exit examination in physics and chemistry written for South Africa's National Senior Certificate (the 'matric'), set under the Curriculum and Assessment Policy Statement (CAPS). It is assessed in two external papers, each worth 150 marks over 3 hours: Paper 1 covers Physics (Mechanics 65 marks, Waves/Sound/Light 15 marks, Electricity & Magnetism 55 marks, Matter & Materials 15 marks) and Paper 2 covers Chemistry (Chemical Change 92 marks, Matter & Materials 58 marks). Both papers test four cognitive levels, with roughly 15% recall, 35–40% comprehension, 35–40% application and 10% evaluation. The subject (DBE code 4054) is administered by the Department of Basic Education through provincial departments and quality-assured by Umalusi. Results feed into the learner's Admission Points Score (APS) used for university entry.

Questions

100 scored questions

Time Limit

3 hours per paper (Paper 1 Physics and Paper 2 Chemistry written separately)

Passing Score

7-level scale (Level 7: 80–100% down to Level 1: 0–29%); a subject pass is usually Level 2 (30%+), with Level 4 (50%+) commonly required for a Bachelor's pass minimum.

Exam Fee

No fee for full-time public-school candidates; part-time/private candidates pay province-set registration fees (a few hundred rand per subject). (Department of Basic Education (DBE), via provincial education departments; quality-assured by Umalusi)

NSC Physical Sciences Exam Content Outline

22%

Mechanics (Paper 1)

Newton's laws, momentum and impulse, work, energy and power, and vertical projectile motion (65 marks).

18%

Electricity & Magnetism (Paper 1)

Electrostatics and Coulomb's law, electric fields, electric circuits and Ohm's law, electromagnetic induction, AC, generators and motors (55 marks).

10%

Waves, Sound, Light & Matter (Paper 1)

Doppler effect, 2D/3D wavefronts and diffraction, photoelectric effect, and emission and absorption spectra (30 marks).

31%

Chemical Change (Paper 2)

Stoichiometry, energy and rate of reaction, chemical equilibrium, acids and bases, and galvanic and electrolytic cells (92 marks).

19%

Matter, Materials & Chemical Systems (Paper 2)

Organic molecules, intermolecular forces, and the fertilizer industry (Haber and Contact processes) (58 marks).

How to Pass the NSC Physical Sciences Exam

What You Need to Know

Passing score: 7-level scale (Level 7: 80–100% down to Level 1: 0–29%); a subject pass is usually Level 2 (30%+), with Level 4 (50%+) commonly required for a Bachelor's pass minimum.
Exam length: 100 questions
Time limit: 3 hours per paper (Paper 1 Physics and Paper 2 Chemistry written separately)
Exam fee: No fee for full-time public-school candidates; part-time/private candidates pay province-set registration fees (a few hundred rand per subject).

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

NSC Physical Sciences Study Tips from Top Performers

1Learn the formulas on the official DBE information sheets cold (v = u + at, F_net = ma, p = mv, W = FΔx·cosθ, F = kQ₁Q₂/r², E = hf) so you can apply them under time pressure.

2Practise full calculation questions with units and significant figures, since roughly 40% of Paper 1 marks reward applying and analysing, not just recall.

3Master organic chemistry nomenclature, functional groups, isomers and reaction types (addition, substitution, elimination, esterification, cracking) for Paper 2.

4Drill past papers under timed conditions (3 hours per paper) and use DBE marking guidelines to check your method marks.

5Build understanding of Le Chatelier's principle, equilibrium, rates and electrochemistry, as these high-mark Chemical Change topics dominate Paper 2.

Frequently Asked Questions

How is the NSC Physical Sciences exam structured?

It consists of two external papers, each worth 150 marks and written over 3 hours. Paper 1 covers Physics and Paper 2 covers Chemistry, for a combined total of 300 marks.

How is NSC Physical Sciences graded?

It uses the National Senior Certificate 7-level scale: Level 7 (80–100%, Outstanding) down to Level 1 (0–29%, Not achieved). A subject pass typically requires at least Level 2 (30%), while Level 4 (50%+) is often needed as a Bachelor's pass subject minimum.

Who administers the NSC Physical Sciences exam?

It is set and administered by the Department of Basic Education (DBE) through the provincial education departments, under the CAPS curriculum, and quality-assured by the independent body Umalusi.

What topics are in Paper 1 versus Paper 2?

Paper 1 (Physics) covers Mechanics, Waves/Sound/Light, Electricity & Magnetism and Matter & Materials. Paper 2 (Chemistry) covers Chemical Change and Matter & Materials, including organic chemistry and the fertilizer industry.

Is there a fee to write NSC Physical Sciences?

Full-time public-school candidates do not pay a fee. Part-time and private candidates pay province-set registration fees, usually a few hundred rand per subject.

100+ Free NSC Physical Sciences Practice Questions

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