Interactive High School Physics Course
🔬 Interactive Physics Masterclass
Learn High School Physics Through Visualizations & Simulations
📈 Kinematics: The Science of Motion
📊 Key Concepts
Displacement (Δx): Change in position (vector quantity)
Velocity (v): Rate of change of displacement
Acceleration (a): Rate of change of velocity
🎯 Equations of Motion
🚀 Projectile Motion Simulator
📝 Example Problems
Problem 1: Free Fall
A ball is dropped from a 45m building. How long until it hits the ground?
Δy = v₀t + ½gt²
45 = 0 + ½(9.8)t² → t = √(45/4.9) = 3.03s
Problem 2: Car Acceleration
A car accelerates from 0 to 60 km/h in 5s. Find acceleration.
v = v₀ + at
60 km/h = 16.67 m/s → a = (16.67-0)/5 = 3.33 m/s²
❓ Quick Check
What is the acceleration due to gravity?
⚖️ Dynamics: Forces & Newton's Laws
🎯 Newton's Laws
1st Law: An object at rest stays at rest unless acted upon by a net force.
2nd Law: F = ma (Force = mass × acceleration)
3rd Law: For every action, there's an equal and opposite reaction.
🌍 Types of Forces
- Gravity: Fg = mg
- Normal Force: Perpendicular to surface
- Friction: Ff = μN
- Tension: From ropes/strings
🎢 Block on Incline Simulator
Problem 1: Atwood Machine
Two masses (3kg and 5kg) connected over a pulley. Find acceleration.
a = (m₂ - m₁)g/(m₁ + m₂) = (5-3)9.8/8 = 2.45 m/s²
Problem 2: Friction
A 10kg box with μ=0.4. Find force needed to move at constant velocity.
F = μN = μmg = 0.4 × 10 × 9.8 = 39.2 N
❓ Quick Check
What happens according to Newton's 1st Law?
⚡ Work & Energy
💡 Key Concepts
Work: W = Fd cosθ (Force × distance × cos of angle)
Kinetic Energy: KE = ½mv²
Potential Energy: PE = mgh
Conservation: KE₁ + PE₁ = KE₂ + PE₂ (without friction)
🎢 Roller Coaster Energy Simulator
Problem 1: Falling Object
A 2kg object falls from 10m. Find speed at ground.
mgh = ½mv² → v = √(2gh) = √(2×9.8×10) = 14 m/s
Problem 2: Spring Compression
A 500kg car at 20m/s hits a spring (k=1000N/m). Find compression.
½mv² = ½kx² → x = √(mv²/k) = √(500×400/1000) = 14.14 m
❓ Quick Check
What is the unit of work?
🌊 Waves & Sound
🌊 Wave Properties
Wavelength (λ): Distance between crests
Frequency (f): Waves per second (Hz)
Speed: v = fλ
Amplitude: Maximum displacement from equilibrium
🎵 Wave Simulator
Problem 1: Sound Wave
Sound in air (v=340m/s) with f=440Hz. Find λ.
λ = v/f = 340/440 = 0.77 m
Problem 2: Light Wave
Red light λ=700nm, v=c=3×10⁸ m/s. Find frequency.
f = v/λ = 3×10⁸/700×10⁻⁹ = 4.3×10¹⁴ Hz
❓ Quick Check
What is the relationship between frequency and wavelength?
⚡ Electricity & Circuits
⚡ Circuit Basics
Voltage (V): Potential difference (V)
Current (I): Flow of charge (A)
Resistance (R): Opposition to flow (Ω)
Ohm's Law: V = IR
🔌 Circuit Builder
Problem 1: Simple Circuit
A 9V battery with 3Ω resistance. Find current.
I = V/R = 9/3 = 3 A
Problem 2: Power Calculation
A device draws 2A at 120V. Find power.
P = VI = 120 × 2 = 240 W
❓ Quick Check
What happens to current if resistance increases?
🔬 Physics Lab Simulations
🎯 Interactive Experiments
Click on any simulation below to explore physics concepts hands-on!
🎯 Pendulum Simulation
🎈 Buoyancy Simulator
📝 Lab Report Guidelines
- Hypothesis: State your prediction
- Method: Describe your setup
- Data: Record observations
- Analysis: Calculate and interpret
- Conclusion: Summarize findings