Lowered Pressure
Turning on the burner in a hot air balloon heats the air inside the balloon, reducing its density. This decrease in density causes the balloon to become lighter than the surrounding air, which helps it to rise. The heated air adds buoyancy, allowing the balloon to ascend.
It is more like an observation or a hypothesis(depending on whether you have done the experiment or not).The law is the thermal expansion of gasses (Henry's Law).The theory is that a (lightweight) balloon filled with enough air that is hot enough will rise.
Heating the air inside the balloon makes it less dense than the surrounding air, causing it to become buoyant and rise. As the air inside the balloon is heated, it expands and its volume increases. This expansion pushes the surrounding air down, creating a lift force that allows the balloon to ascend.
As a balloon ascends to the top of a mountain, the decrease in atmospheric pressure causes the air inside the balloon to expand. According to Boyle's Law, when the external pressure decreases, the volume of a gas increases if the temperature remains constant. This expansion can potentially lead to the balloon bursting if it exceeds the material's limits. Additionally, temperature changes with altitude may also affect the balloon's behavior.
how would a balloon payment effect interest on a loan
Example sentence - Our homework assignment is to give an example of thermal expansion and explain why it happens.
No, a bimetallic strip relies on the different rates of expansion of the two metals to produce a bending effect when exposed to temperature changes. If the two metals have the same rates of expansion, the strip would not bend and would not function as intended.
Thermal expansion is the tendency of a substance to change in volume with a change in temperature. Absolute zero is the lowest possible temperature at which a thermodynamic system reaches minimum energy. The concept of thermal expansion can be observed in materials expanding as they are heated, with absolute zero as the point where all thermal motion ceases.
I really don't know
Some non-examples of thermal expansion would include the boiling of water, which involves a phase change rather than expansion due to temperature increase, and the stretching of a rubber band, which is a different mechanism of deformation unrelated to temperature change. Additionally, the growth of a plant is not an example of thermal expansion.
Thermal expansion means that the length of the bridge changes.
Make the balloon capable of further expansion. That way as the balloon rises and the barometric pressure falls the balloon can expand and allow its internal gases to achieve a constantly decreasing density.
The term is "thermal expansion." When materials are heated, they typically expand due to increased molecular motion. Not expanding at high temperatures would suggest that the material has a low coefficient of thermal expansion.
coefficient of thermal expansion chemical would be Galvanism,
The reason there are cracks in sidewalks instead of just one continuous piece of concrete is to provide for thermal expansion. Without the expansion cracks, as the concrete heats up it expands it would have no where to go so the sidewalk would buckle. Also, in the winter when it gets cold the concrete would shrink and crack/break.
Since expansion is the process of a substance's dimensions increasing, e.g., thermal expansion caused by a rise in temperature, the logical opposite would be contraction.