yes it you
No. The definition of 'acceleratiion' is 'any change in velocity'.
If you are traveling at a constant speed with changing direction there is a change in velocity, so you are accelerating.
No. Acceleration is any change of velocity.But its speed can be constant.
It means that something accelerates, or is subject to acceleration. In popular language, "acceleration" is often understood to mean that the speed increases. In physics, acceleration is any change of velocity.
Yes; acceleration is any change in velocity - speed, or direction.
0. Doesn't matter what unit it is. If it's moving at a constant velocity, not changing its speed (either positively or negatively), it's not accelerating, right? So its acceleration is 0. However, we must remember to always define; 'with respect to what'. Velocity is a relative concept. i.e. If you are sitting at rest or walking with constant velocity on a train, yet the train is accelerating, are you accelerating? wrt the train - the answer is no. wrt the embankment - the answer is yes. The answer then relates to something else, which is your own 'centre of mass' inertial rest frame. (i.e. you can 'feel' acceleration). So wrt your 'previous' state. This is normally quite poorly understood.
No. An object that has no net force on it will simply not be accelerating. It can be in motion, but it can not have any change in its velocity.
Since any part of the surface will continuously move up and down, that means that its velocity must be changing - hence, it is accelerating.
No. A velocity indicates a speed and direction. An acceleration is a change in speed or direction.
Yes. Acceleration is any change in velocity. When a car slows down it is decelerating; think of deceleration as acceleration in the negative direction.
Any object moving in a circle (as in a centrifuge, or a planet in an orbit) is accelerating. More generally, any object that moves in a curve is accelerating (such as a car moving in a curve on the road).
Acceleration is any change in velocity. It could be a change in speed or direction. Technically, even slowing down is acceleration.