Science Homework Question?(Motion)?

Question

I was wondering if anybody could explain what this is asking..

Give an example of how the apparent motion of an object depends on the observers motion.

Thanks for all help!(:

Answer 1

It's saying that the apparent motion someone views doesn't necessarily mean the object is moving.  If the body of the person looking is in motion, it will give the illusion that the object itself is moving.

For instance, swinging on a swing set.  The tree above you will appear as if it's moving (first it's close to you, then it's further away, then it gets closer again, etc.) but really it's the motion of your own body (ie, you're on a swing) that is making the tree appear as if it's moving.

Answer 2

You are in the passenger seat of a car in a parking lot.  The car next to you appears to be moving forward. Is it actually doing so, or is your car moving backward?

Answer 3

I think something of how if you're looking at a stationery object from a moving car, it changes your perspective because the observer is moving herself.