Here are the virtual labs:
https://introphyslabs.sites.northeastern.edu/geometric-optics-virtual-lab/
https://introphyslabs.sites.northeastern.edu/work-and-energy-on-an-air-track-virtual-lab/
https://introphyslabs.sites.northeastern.edu/magnetic-force-and-lorentzs-law-virtual-lab/
https://introphyslabs.sites.northeastern.edu/conservation-of-momentum-in-collisions-virtual-lab/
https://introphyslabs.sites.northeastern.edu/fluid-flow-virtual-lab/
https://introphyslabs.sites.northeastern.edu/rc-circuits-virtual-lab/