I’m helping Ingrid with her physics homework, while she coughs all the time.

Their current area of study is mechanics, which has a lot of counter-intuitive topics. I’ve really struggled to explain some of these to Ingrid in a way that makes sense for her.

Why do satellites at different altitudes move at different speeds?

When a hammer thrower releases the handle, in which direction does the hammer fly, and why?

You have two jars containing wasps. In one the wasps are dead, in another they are alive and flying around in the jar. How do the weights of the jars differ?