Hi, I found two physics questions, and I'm still quite confused how this works: If a spring balance is attached to a weight, and the spring balance is then attached to the top of an elevator (on the inside), then it reads the force exerted by the weight downwards. But when the lift accelerates upwards, somehow the reading on the spring balance increases. I just see it as the spring balance having to exert a force (?) or upwards to accelerate upwards together with the elevator, so the reading increases... For the other question, it's a weighing scale on the bottom of the elevator. There's a weight on top of it, and it reads a certain weight. When the lift accelerates upwards, the reading increases. I was wondering why, though. Yeah, basically, I'm confused over why acceleration up and down would increase the readings of these instruments used to measure weight... Can someone explain this to me? Thanks!