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How do convention currents move?
Heated from the bottom, the warmer substance will slowly rise to the top while the cooler substance at the top falls to the bottom to be heated again. Look at a lava lamp. That is all about convection currents.
What type of substance is heated by radiation?
Any substance that absorbs the radiation is heated by it.
What will a graph show if the change in temperature of a substance is heated?
A graph of the change in temperature of a substance as it is heated will typically show an initial increase in temperature until a plateau is reached, known as the phase transition or melting point. After this, the temperature will continue to rise again as the substance transitions to a gas.
What happens if a substance of unknown composition is heated in a sealed container As a result the mass of the container and its contents?
If a substance of unknown composition is heated in an open container will Its mass will stay the same as a result the mass of the container and its contents decreases. A substance of an unknown composition is heated in a sealed container the mass of the container and its content remains the same.
Which term is defined as the process by which a substance changes state from sloid to liquid?
The term you are looking for is "melting." Melting is the phase transition of a substance from a solid to a liquid as a result of being heated to its melting point.
When a substance is blank it gains thermal energy?
When a substance is heated, it gains thermal energy. This increased energy causes the substance's particles to move faster and its temperature to rise.
Do molecules rise or sink after they are heated?
When molecules are heated, they increase in kinetic energy and tend to rise due to decreased density. This is because as a substance is heated, its molecules spread out and become less dense, causing them to rise in a fluid medium such as air or water.
Why do gases and liquids rise when heated?
Gases and liquids rise when heated because the increase in temperature causes the particles in the substance to gain energy and move faster, leading to a decrease in density. This causes the heated substance to become less dense than its surroundings, resulting in it rising.
Why does heat rise?
Heat rises because when a substance is heated, its molecules gain energy and move faster, causing them to spread out and become less dense. This decrease in density makes the heated substance lighter than the surrounding cooler air, causing it to rise.
Why does the substance in the column of the thermometer go up when it is heated?
When the substance in the column of a thermometer is heated, its temperature increases. As the temperature increases, the particles in the substance move more energetically and spread out, causing the substance to expand and rise up the column. This expansion is what causes the fluid to rise and indicate a higher temperature reading on the thermometer.
How do convention currents move?
Heated from the bottom, the warmer substance will slowly rise to the top while the cooler substance at the top falls to the bottom to be heated again. Look at a lava lamp. That is all about convection currents.
What is the transfer of energy as heat by movement of the heated substance itself?
Convection is the transfer of energy as heat by movement of the heated substance itself. This process involves the movement of molecules in a fluid (liquid or gas) due to differences in temperature, causing the warmer substance to rise and the cooler substance to sink.
What change might be observed when a substance is heated?
When a substance is heated, it may undergo physical or chemical changes such as melting, evaporation, sublimation, or decomposition. These changes can result in alterations in the substance's physical state, color, texture, or chemical composition.
What type of substance is heated by radiation?
Any substance that absorbs the radiation is heated by it.
What is heat transfer resulting from rising particles in heated matter?
This is known as convection heat transfer. As particles in a heated substance rise, they carry heat energy with them, causing cooler particles to move in to take their place. This circulation creates a transfer of heat throughout the substance.
What will a graph show if the change in temperature of a substance is heated?
A graph of the change in temperature of a substance as it is heated will typically show an initial increase in temperature until a plateau is reached, known as the phase transition or melting point. After this, the temperature will continue to rise again as the substance transitions to a gas.
What substance is heated with limestone to prodce cement?
its heated with something
