False. Acceleration is a change of speed or direction over time.
True. It can mean change in the direction of motion.
'Acceleration' is a change in the speed and/or direction of motion.
It is false. Change of direction is acceleration, which can only be produced by unbalanced forces.
False. At least the way "acceleration" is described in physics, acceleration involves any change in velocity - so the "accelerating" object can speed up, slow down, or simply change direction.
No. Acceleration is change of velocity. It occurs when an object changes speed and/or direction.
True
'Acceleration' is a change in the speed and/or direction of motion.
It is false. Change of direction is acceleration, which can only be produced by unbalanced forces.
Indirectly, yes. If the graph is a straight line there is no acceleration, if the graph is not linear there is acceleration.
False. At least the way "acceleration" is described in physics, acceleration involves any change in velocity - so the "accelerating" object can speed up, slow down, or simply change direction.
true
No. Acceleration is change of velocity. It occurs when an object changes speed and/or direction.
True
False
no, acceleration is not a vector quantity. its false
Distance = (1/2 of acceleration) x (time squared)You can change this around to solve it for acceleration or time.(Time squared) = (distance)/(half of acceleration)Time = the square root of [ (2 x distance)/(acceleration) ]Be careful . . .This is only true if the distance and the speed are both zero when the time begins.
True. A physical change is a change from one state to another without a change in chemical chemistry.
It is false.