Explore the role of a molecule’s mass with respect to its diffusion rate. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion. Diffusion is always happening, even when a system appears to have reached equilibrium, because molecules are always moving. Massive molecules have more kinetic energy […]
Explore the role of temperature in the rate of diffusion of a substance. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion. Diffusion is always happening, even when a system appears to have reached equilibrium, because molecules are always moving. When molecules are heated, they move […]
Explore the role of temperature in the rate of diffusion of a substance. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion. Diffusion is always happening, even when a system appears to have reached equilibrium, because molecules are always moving. When molecules are heated, they move […]
Explore the strength and direction of forces between two charged objects by observing the color and direction of the force pointers.
Observe the direction of forces between a negatively charged Van de Graaff generator and a positively charged object.
Drag around a stationary charged object and observe the force on the stationary object when it is positive and negative.
Observe the impact on potential energy when a substance dissolves in water.
Explore how the polarity of molecules affects how they mix (or don’t) when combined.
Set the amount and type of charge on particles and compare the potential energy of the electric field that is generated.
Set the charge of two particles and compare the potential energy of the electric field they generate as the particles are moved around.