What is motion?
Q: What is motion?
A: Motion is the state of changing something's position or changing where something is.
Q: Who are Galilei and Newton?
A: Galilei and Newton were scientists who studied movement, and their work helped us understand that position is relative, meaning an object's position depends on where it exists in relation to other objects.
Q: What does kinematics study?
A: Kinematics studies the motion of an object without considering its cause. It deals with terms like speed, velocity, and acceleration.
Q: What does dynamics study?
A: Dynamics studies the causes and effects of motion. It deals with force, inertia, work, energy and momentum.
Q: How do reference points help define an object's position?
A: Reference points help define an object's position by providing a frame of reference for observation. For example, if you tell someone how far away a ball is from other objects such as a box, chair or table they can determine its relative position in relation to those objects.
Q: How can movement be observed differently depending on a frame of reference?
A: Movement can be observed differently depending on what frame of reference you use when observing it. For example if two trains are facing the same direction but one moves backwards while the other stays still then from inside Train A it will appear that they are moving towards Train B when in reality they have not moved at all - this can only be seen if there is another point of reference such as a pole next to both trains which shows that Train A has remained still while Train B has moved backwards.
