NJC H2 Physics Term 1 Timed Practice P2 with solution

[Turn over NATIONAL JUNIOR COLLEGE SENIOR HIGH 2 Timed Practice Higher 2 CANDIDATE NAME SUBJECT CLASS REGISTRATION NUMBER PHYSICS Candidate answers on the Question Paper. 9478/02 March 2026 1 hour 15 minutes No Additional Materials are required. READ THE INSTRUCTION FIRST Write your subject class, registration number and name in the spaces at the top of this page. Write in dark blue or black pen on both sides of the paper. You may use a HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. The use of an approved scientific calculator is expected, where appropriate. Answers all questions. The number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s Use 1 / 10 2 /10 3 / 15 4 / 10 Deduction Total /45 This document contains 20 printed pages and 4 blank pages. H

2 Data and Formula Sheet speed of light in free space, c = 3.00 × 10 8 m s -1 permeability of free space, mo = 4𝜋 × 10 -7 H m -1 permittivity of free space, eo = 8.85 × 10 -12 F m -1 ( 1 4𝜋𝜀0 = 8.99 × 109 F m -1) elementary charge, e = 1.60 × 10 -19 C the Planck constant, h = 6.63 × 10 - 34 J s unified atomic mass constant, u = 1.66 × 10 -27 kg rest mass of electron, me = 9.11 × 10 -31 kg rest mass of proton, mp = 1.67 × 10 -27 kg molar gas constant, R = 8.31 J K -1 mol -1 the Avogadro constant, NA = 6.02 × 10 23 mol -1 the Boltzmann constant, k = 1.38 × 10 -23 J K -1 gravitational constant, G = 6.67 × 10 -11 N m 2 kg -2 acceleration of free fall, g = 9.81 m s -2 uniformly accelerated motion, s = ut + 1 2at2 v 2 = u 2 + 2as work done on/ by a gas, W = p ΔV pressure p = 𝐹 𝐴 gravitational potential, 𝜙 = − 𝐺𝑀 𝑟 temperature T /K = T /°C +273.15 pressure of an ideal gas p = 1 3 𝑁𝑚 𝑉 < 𝑐2 > mean translational kinetic E = 3 2 kT energy of an ideal gas molecule displacement of particle in s.h.m., x = xo sin ωt velocity of particle in s.h.m., v = vo cos ωt = ±𝜔√𝑥0 2 − 𝑥2 Electric current I = Anvq resistors in series, R = R1 + R2 + . . . resistors in parallel, 1/R = 1/R1 + 1/R2 + . . . capacitors in series 1/C = 1/C1 + 1/C2 + . . . capacitors in parallel C = C1 + C2 + . . . energy in a capacitor 𝑈 = 1 2 𝑄𝑉 = 1 2 𝑄2 𝐶 = 1 2 𝐶𝑉2 charging a capacitor 𝑄 = 𝑄0 [1 − 𝑒−𝑡 𝜏] RC time constant 𝜏 = 𝑅𝐶 electric potential, 𝑉 = 𝑄 4𝜋𝜀0𝑟 alternating current / voltage, x = xo sin ωt magnetic flux density due to B = 𝜇0𝐼 2𝜋𝑑 long straight wire magnetic flux density due to B = 𝜇0𝑁𝐼 2𝑟 a flat circular coil magnet