Alex’s year began with Thermal Phenomena . In the first lab, he carefully measured the cooling of water over time, plotting a graph that looked like a gentle slide. Later, he used a calorimeter to find the specific heat capacity of a metal cylinder. He dropped the hot metal into cool water, watching the thermometer climb as the two reached "thermal equilibrium"—the perfect balance of energy exchange.
Next came Electromagnetic Phenomena . Alex wound wire around an iron nail to create an electromagnet . He was amazed when a simple battery turned a piece of junk metal into a magnet strong enough to pick up paperclips. He then explored the magnetic field of a permanent magnet using iron filings, which mapped out invisible lines of force like a hidden fingerprint. laboratornye po fizike 8 klass korshak savchenko liashenko
As the snow fell outside, the class moved to Electrical Phenomena . Alex felt like an engineer as he assembled his first circuit using a battery, a bulb, and a switch. He learned to use an Ammeter and a Voltmeter , realizing that current is like water flow while voltage is the pressure pushing it. He spent one afternoon proving Ohm's Law , adjusting a rheostat and watching the needle dance across the scale, confirming that as resistance goes up, the current fades. Alex’s year began with Thermal Phenomena
Measuring current and voltage, and calculating the resistance of a conductor. He dropped the hot metal into cool water,