Recent content by nate99

Thanks, everyone. That is more clear now. Let me check to make sure I understand this, so in a collision, each part of the object may not necessarily experience the same momentum change (due to different mass) and force. That was not easy for me to really get. So in a car crash, the person...

Homework Statement Just a general physics question that I was thinking about. I posted it here because I assumed it is a general question that is easy to most experts. I apologize if something similar was posted before, but I couldn't find anything asking in a way I needed to think about it...

In my opinion I would say yes in regards to creating a solution for the central problem/task. But I would say not necessarily as far as the parameters that you put on it. Project-based and Problem-based units can still have limitations as far as what you can do, similar to how real world...

Thanks, I had a look at the past conversations about it. I guess what I was looking for was advice with some thoughts about what worked well and what didn't. Most of the conversations are from students about how best to make a container. But I guess in looking at the replies, it seems there...

Really? I must not be using this right. I searched Egg in the titles of threads on this forum and got nothing. Care to weigh in?

Hello I'm relatively new to teaching physics and was wondering if you anyone had advices as to the parameters to put on this challenge. How high should I drop their containers from? 2nd or 3rd story? When I was in school, I think we could only use glue and toothpicks, but I don't remember...

I think I understand that. Variable force over a distance. It becomes a little more complicated to figure out the exact number for work. I'm going to avoid those situations for my students. Thanks for the help!

Ah ok, that does sound more clear. So a person throwing a shot-put, or whatever object really, is winding up and exerting force on an object over the distance that they are winding up. That force X distance that they are winding up is the WORK. It doesn't matter if that shot-put goes 1000...

I saw a previous thread in which someone said as soon as you stop applying the force then work is zero. Not sure if that meant that the object had to stop moving or not. The physicsclassroom.com page said that a person throwing a shot-put is an example of work, which confuses me a bit more.

For #1 yes, I was assuming uniform motion. I guess I'm anticipating confusing questions I could be asked in the introductory physics high school course I'm teaching. Work = Force X Distance is not too hard of a concept. However, when I start to think more about the force it gets...

Two Scenarios: 1. I have to push a cart. I apply a constant force of 10 Newtons in the horizontal direction. The cart moves for 10 meters. I have done 100 Nm or Joules of work. 2. I push the cart but I don't follow it and apply a constant force. It was just one moment of force, let's...

I see, I guess I just learned it wrong in the past. Thanks for correcting me

I remember being taught that, due to gravity, we are always accelerating downwards. But how do you explain it? Gravity is constant, and even if we are at rest, if I step on a scale I still get a weight of my mass X acceleration due to gravity. My forces vertically are balanced (me on the...

Khashishi, Thanks for that explanation! I had to draw it out and use arrows and quantities. So in the way that this diagram would be set up, when I look at all of the forces in the same way that you did, I would get The box is accelerating in the positive direction. (10 N) The...

Excellent! I'm going to mull over those for a little while. Thanks!