 The measure of the average kinetic energy of particles. Temperature doesn’t depend on the number of particles

If both beakers are at 100 degrees C, which one has more thermal energy? Thermal energy depends upon temperature and the number of particles. Thermal energy is the total kinetic energy of particles.

more heat more dense less dense Thermal expansion is the increase in volume that results from an increase in temperature. less heat When something is heated, its particles have more kinetic energy, so the particles move faster and move apart, causing expansion. The mass stays the same, but the volume increases as it expands, so density decreases.

Heat is the energy that is transferred between objects of different temperatures. Which way is the heat energy moving in each picture?

Specific heat refers to the different rates at which substances become warmer or cooler. Substances with a high specific heat, like water, require a lot of energy to show an increase in temperature. As the sun shines throughout the day, which will heat up faster, the air or a swimming pool? Why?

Energy from the Sun travels is waves. The Sun’s energy comes in different forms.  Visible light – we can see this  Infrared radiation – most of the warmth we feel  Ultraviolet radiation – high energy radiation

How is the heat energy being transferred in this picture? Is it Radiation, Conduction, or Convection? Explain. Conduction is the transfer of energy from one object to another through direct contact. Conduction

How is the heat energy being transferred in this picture? Is it Radiation, Conduction, or Convection? Explain. Radiation Radiation is the transfer of energy as electromagnetic waves. Radiation can transfer energy between objects that are not in direct contact with each other.

How is the heat energy being transferred in this picture? Is it Radiation, Conduction, or Convection? Explain. Convection Convection is the transfer of energy due to the movement of matter. A convection current occurs because most matter becomes less dense as its temperature increases. When matter is heated, it undergoes thermal expansion, making it less dense. The less dense matter is forced upward by the surrounding colder, more dense matter that is sinking. As the hot matter rises, it cools, becoming more dense and causing it to sink. This is what happens when water boils.