Motion MCQ Challenge Class 9 Ch 7 Quiz| Test Yourself!

By Bharat Muni / July 13, 2025

Comprehensive Motion MCQ Challenge Class 9 Ch 7 Quiz

Comprehensive Test Quiz

`; }function showLottieOverlay() { lottieOverlay.innerHTML = ``; lottieOverlay.style.display = 'flex'; setTimeout(() => { lottieOverlay.style.display = 'none'; lottieOverlay.innerHTML = ''; }, 1500); }function playCtqSound(type) { try { const ctx = new (window.AudioContext || window.webkitAudioContext)(); const o = ctx.createOscillator(); const g = ctx.createGain(); o.connect(g); g.connect(ctx.destination); if (type === 'correct') { o.type = 'triangle'; o.frequency.value = 660; g.gain.value = 0.08; } else { o.type = 'square'; o.frequency.value = 220; g.gain.value = 0.10; } o.start(); o.stop(ctx.currentTime + 0.18); o.onended = () => ctx.close(); } catch (e) {} }function showCtqConfetti() { const colors = ['#f39c12', '#e74c3c', '#3498db', '#27ae60', '#9b59b6']; confettiOverlay.innerHTML = ''; confettiOverlay.style.display = 'block'; for (let i = 0; i < 30; i++) { const confetti = document.createElement('div'); confetti.className = 'ctq-confetti'; confetti.style.left = Math.random() * 100 + '%'; confetti.style.background = colors[Math.floor(Math.random() * colors.length)]; confetti.style.animationDelay = Math.random() * 0.5 + 's'; confetti.style.animationDuration = (Math.random() * 0.5 + 1.5) + 's'; confettiOverlay.appendChild(confetti); } setTimeout(() => { confettiOverlay.style.display = 'none'; confettiOverlay.innerHTML = ''; }, 2500); }function attachEventListeners() { document.querySelectorAll('.ctq-option').forEach(button => { button.addEventListener('click', handleOptionClick); }); const nextBtn = document.getElementById('ctq-next-btn'); if (nextBtn) nextBtn.addEventListener('click', handleNextQuestion); const viewReportBtn = document.getElementById('ctq-view-report-btn'); if (viewReportBtn) viewReportBtn.addEventListener('click', handleViewReport); const restartBtn = document.getElementById('ctq-restart-btn'); if (restartBtn) restartBtn.addEventListener('click', handleRestartQuiz); }function handleOptionClick(event) { if (isAnswerChecked) return; const optionIndex = parseInt(event.target.dataset.option); selectedOptionIndex = optionIndex; isAnswerChecked = true; const isCorrect = optionIndex === questions[currentQuestionIndex].correctAnswerIndex; userAnswers.push({ questionIndex: currentQuestionIndex, selectedOptionIndex: optionIndex, isCorrect: isCorrect, }); if (isCorrect) { showCtqConfetti(); playCtqSound('correct'); } else { showLottieOverlay(); playCtqSound('wrong'); } render(); }function handleNextQuestion() { selectedOptionIndex = null; isAnswerChecked = false; if (currentQuestionIndex < questions.length - 1) { currentQuestionIndex++; } else { quizCompleted = true; } render(); }function handleViewReport() { showReport = true; render(); }function handleRestartQuiz() { currentQuestionIndex = 0; selectedOptionIndex = null; isAnswerChecked = false; userAnswers = []; quizCompleted = false; showReport = false; render(); }document.addEventListener('DOMContentLoaded', render); })();

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