Everyday objects show us how heat moves in three main ways:
Conduction: This happens when heat travels through direct touch. Think about metal pots and pans. Metals like copper and aluminum are really good at conducting heat. For example, copper conducts heat at around 385 W/m·K, which is why it's great for cooking.
Convection: This takes place in liquids and gases. When something gets hot, it becomes lighter and rises, while the cooler parts sink down. Imagine boiling water in a pot. When it heats up to about 100°C, the heat from the stove warms the bottom of the pot, which then heats the water.
Radiation: This method sends heat through waves, and it can even happen in empty space. For instance, the sun's surface is super hot at about 5,500°C. The heat from the sun travels through space and warms the Earth.
These three methods show us how everyday objects share and exchange heat. This is really important for keeping temperatures comfortable and using energy wisely.
Everyday objects show us how heat moves in three main ways:
Conduction: This happens when heat travels through direct touch. Think about metal pots and pans. Metals like copper and aluminum are really good at conducting heat. For example, copper conducts heat at around 385 W/m·K, which is why it's great for cooking.
Convection: This takes place in liquids and gases. When something gets hot, it becomes lighter and rises, while the cooler parts sink down. Imagine boiling water in a pot. When it heats up to about 100°C, the heat from the stove warms the bottom of the pot, which then heats the water.
Radiation: This method sends heat through waves, and it can even happen in empty space. For instance, the sun's surface is super hot at about 5,500°C. The heat from the sun travels through space and warms the Earth.
These three methods show us how everyday objects share and exchange heat. This is really important for keeping temperatures comfortable and using energy wisely.