Okay, so I know what inertial and non-inertial frames of reference are: 1. Inertial is when Newton's laws of motion hold. 2. Noninertial is when they do not hold (the object is accelerating without a force). And I have a few examples as well, such as when you are is in a car and the car is accelerating. Then you move forward. If you are inside the car, you are in an inertial frame of reference, but if someone outside is watching you move forward, it is a non-inertial frame of reference because in their POV, there is no force acting on you. Or when you are in an airplane and you have a yo-yo in your hand. The yo-yo moves to the side even when you did nothing due to the acceleration of the plane (inertial frame), and if someone sees this from the outside (not possible, but IF that could happen), it is a non-inertial frame of reference. Or if someone is juggling inside a car. It is just as easy (or just as difficult) to juggle balls in a room which is standing still as it is to juggle in a bus which is traveling smoothly down a straight road at constant speed. (Disregard problems with elbow room on the bus, or imagine one with no seats in it.) In fact, the juggler on the bus could not determine that the bus was moving based on any clues gathered from the motion of the balls. They would move through the air within the moving bus exactly as if they were being tossed about within the still room - as long as the bus traveled smoothly down a straight road at constant speed; that is, as long as the bus moved with a constant velocity. The point is, I understand what inertial and non-inertial frame of reference is (to a degree), but I need to think of some more examples where inertial and non-inertial frames of reference are present and they're supposed to be "creative", but I cannot think of anything and that's where I need help.