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What is the key difference between an inertial and non-inertial reference frame?
Inertial Frame: Not accelerating (constant velocity or at rest). Non-Inertial Frame: Accelerating.
Compare how velocity is perceived in two different inertial reference frames.
Different inertial reference frames: Velocity is different. Acceleration: Acceleration remains the same.
What is a reference frame?
A viewpoint for measuring motion, affecting the direction and magnitude of physical quantities.
What is an inertial reference frame?
A reference frame that is not accelerating; it moves at constant velocity or is at rest.
Define observed velocity.
The velocity of an object as perceived from a particular reference frame, combining its actual velocity and the observer's frame velocity.
What is relative velocity?
The velocity of an object with respect to a specific observer or reference frame.
What does it mean for acceleration to be invariant in inertial frames?
Acceleration remains constant when measured from any inertial reference frame.
What is a reference frame?
The observer's point of view; crucial for determining how motion is perceived.
What is an inertial reference frame?
A reference frame that is not accelerating; it moves at a constant velocity or is at rest.
Define observed velocity.
The combination of an object's velocity and the velocity of the observer's reference frame.
What does relative motion describe?
The motion of an object as observed from a particular reference frame.
Define velocity relative to a reference frame.
The velocity of an object as measured by an observer in that specific reference frame.