NAPT Study Guide 2026
Everything you need to pass the NAPT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 NAPT Exam Format at a Glance
📚 NAPT Topics to Study (15)
✍️ Sample NAPT Questions & Answers
1. The First Law of Thermodynamics is a statement of the conservation of energy. For a closed system, it is expressed as ΔU = Q - W. In this equation, what does ΔU represent?
The First Law of Thermodynamics states that the change in the internal energy of a system (ΔU) is equal to the heat added to the system (Q) minus the work done by the system (W). It accounts for the energy balance within the system. W is work done by the system, and Q is the heat transferred into the system.
2. What company is Modern Warfare 2 made by?
Modern Warfare 2 is made by Infinity Ward. This can be inferred from the fact that Infinity Ward is listed as one of the options and is the correct answer.
3. The Law of Conservation of Mass is a fundamental principle in chemistry. When balancing a chemical equation, what quantity must be the same on both the reactant and product sides to uphold this law?
Balancing a chemical equation ensures that the Law of Conservation of Mass is followed, which states that matter cannot be created or destroyed. To satisfy this law, the number of atoms of each individual element must be identical on both the reactant (starting materials) and product (resulting substances) sides of the equation.
4. Carbon-12 and Carbon-14 are both isotopes of the element carbon. What is the fundamental difference between them?
Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. Because the number of protons defines the element (atomic number), both Carbon-12 and Carbon-14 have 6 protons. However, Carbon-12 has 6 neutrons, while Carbon-14 has 8 neutrons. This difference in neutron count leads to a different mass number but does not significantly change their chemical properties.
5. A submarine's depth, d, in meters, is a function of time, t, in hours, modeled by the equation d(t) = -50t^2 + 200t. What is the maximum depth the submarine reaches?
The function d(t) = -50t^2 + 200t is a quadratic equation representing a parabola opening downwards. The maximum value occurs at the vertex. The t-coordinate of the vertex is found by the formula t = -b / (2a). In this equation, a = -50 and b = 200. So, t = -200 / (2 * -50) = -200 / -100 = 2 hours. To find the maximum depth, substitute this time back into the function: d(2) = -50(2)^2 + 200(2) = -50(4) + 400 = -200 + 400 = 200 meters.
6. What is the exact value of sin(60°)?
The value of sin(60°) is a standard trigonometric identity derived from a 30-60-90 triangle. In such a triangle, if the side opposite the 30° angle is 1, the hypotenuse is 2, and the side opposite the 60° angle is √3. Sine is defined as the ratio of the opposite side to the hypotenuse (SOH). For the 60° angle, the opposite side is √3 and the hypotenuse is 2. Therefore, sin(60°) = √3/2.