ITV Schools - Physics In Action
Been quite hard to find the year and even the decade for this, but I think it's from the 1980s. This short clips talks about the laws of motion, involving these gliding magnets along a railing, something like a minature monorail. Narrated by Charles Foster, "Physics In Action" as far as I know was still being made for ITV Schools in the late-80s.
The presentation of the show is eerily similar to the 2000s spoof 70s/80s schools series "Look Around You".