Science Assessment ~ Topics ~ Energy: Forms, Transformation, Transfer, and Conservation ~ Misconception RGM102

Density and gravity don't play a role in why an object rises. An object rises because it is hotter than its surrounds.

Items that test for misconception RGM102 in this project (ASPECt) and key idea (In a fluid, regions that have diffe…)
Item ID Number	Item Description	How Often the Misconception was Chosen	Select This Item for My Item Bank
RG136002	The air in a hot air balloon is hotter than the air around the balloon. Hot air is less dense than cold air, which means the force of gravity is weaker on the balloon than on the denser air around the balloon. This allows the balloon to float upward.	34%