Explore the potential and kinetic energy as two atoms form a covalent bond.
Explore the balance of forces and electron distribution as two atoms are moved closer and further apart.
Explore how a particle model of gases works to predict the behavior of a syringe under various conditions.
Explore how potential energy created by particles of varying charge is converted to thermal energy.
Experiment with a simulated Crookes tube for qualitative results similar to Thomson’s experiments in which the electron was discovered.
Explore the effect of an electric field on the electron distribution of an atom.
Explore the role of pore size in the diffusion of a substance across a membrane. 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. Cells are selectively permeable, […]
Before Ernest Rutherford’ s famous gold foil experiment in 1911, it was not known how the positive part of the atom was distributed. His experiment showed that if you shot positively charged particles at the atoms in a very thin sheet of gold foil, that very rarely, a particle would bounce back from the foil […]
This model shows the combined effects of heat capacity and conductivity.
The heat conductivity of a solid material defines how fast heat will flow through it. You can probably think of several everyday examples of materials with high (fast) conductivity or low (slow) conductivity. This model illustrates the effect of different conductivities by placing different materials between a hot and a cold object and graphing the […]