A tree can be used for a frame of reference for the motion of a snowboarder.
Motion is relative to an observer's frame of Reference.
According to the current understanding of physics, there is no such thing as "absolute motion". There is nothing in space that distinguishes one frame of reference from another. There is no "preferred" reference frame. Thus, if you don't specify a frame of reference, you don't know how an object is moving. Unless, of course, the frame of reference is implicit; in some practical situations it is.
the sun
A frame of reference in physics may refer to a coordinate system or set of axes within which to measure the position, orientation, and other properties of objects in it, or it may refer to an observational reference frame tied to the state of motion of an observer. It may also refer to both an observational reference frame and an attached coordinate system as a unit. There is no particular formula to calculate this.
A reference frame? Of course, a reference frame need not be a specific object, so I'm not really sure...
A tree can be used for a frame of reference for the motion of a snowboarder.
Frame Of Reference. which means a framework that is used for the observation and mathematical description
No, an inertial reference frame is not an absolute reference frame. It is a frame of reference in which an object either remains at rest or moves with constant velocity in a straight line, but it is not considered absolute as its motion can be affected by external forces.
Motion is relative to an observer's frame of Reference.
Relative motion is movement in relation to a frame of reference.
Relative motion is movement in relation to a frame of reference.
It certainly is necessary. Sometimes it may be implied - for example, in practice, quite often planet Earth is used as a frame of reference. But whether it is implied, or explicitly stated, you always need a frame of reference to describe motion, or position.
usually the motion of your frame of reference is 0. When you are in a train going 50 mph, your frame of reference would be you are going 0 mph and the tracks are traveling at -50 mph.
earth
Absolute motion is motion relative to a presumed absolute reference frame. Special Relativity posits that the laws of nature are perfectly symmetrical with respect to any inertial reference frame. This implies that there is no absolute reference frame, and that absolute motion is a useless concept.
That's right, motion cannot be measured unless you have some frame of reference within which to measure it.
frame of reference