No, acceleration is change in velocity. (And velocity is speed in a certain direction.)
If an object slows down, then it is changing velocity and thus accelerating. (In this case, the acceleration is negative.)
If an object changes direction, then it's velocity changes, so this is also acceleration. (This is centripetal acceleration.)
Yes. Acceleration is always in the same direction as the unbalanced force.
Note: This does not mean that velocity is necessarily in that direction. Velocity and acceleration are two different things. The integral of acceleration does become velocity, and the integral of velocity does become position, but that has nothing to do with the answer to the question.
No. Acceleration may point in any direction at all with respect to the direction of motion.
Acceleration in the direction of motion increases the speed in the same direction.
Acceleration in the opposite direction leads to an effect commonly referred to as "slowing down".
Acceleration in any other random direction bends the path of the motion, and may increase or decrease the speed.
If you are talking about free fall, acceleration due to gravity and velocity will both be negative, until terminal velocity is reached, at which point the falling object is no longer accelerating and has constant negative velocity.
The direction of the net force applied on the object.
Yes, as does displacement. Examples, 45.5m/s [W], 655cm [N], 48km/ks [S]
Yes, it is.
It can accelerate or decelerate, depending on the direction of force
Not always, the unbalanced force only points in the direction of the acceleration so a body may be moving in the opposite direction. Example. A car moves with some speed to the right on a horizontal surface and lock the brakes, if the surface has friction, but the net force acting on it is equal to the frictional force pointing left and produces a Deceleration of carriage until stop, but while this happens continuously in motion to the right.
Newton's Second Law: force = mass x acceleration. Solving for acceleration: acceleration = force / mass. In other words, other things (i.e., the mass) being equal, the acceleration is proportional to the force.
Unbalanced forces are forces that produce a nonzero net force, which changes an object's motion. The result of an unbalanced force is acceleration of an object.
The acceleration plus other driving forces minus retarding forces equals the unbalanced force (force net.)
An unbalanced force will cause acceleration in the direction of the force.
There is acceleration in the direction of positive net force.
Direction will be changed by the force caused acceleration, a=F/m.
Acceleration is the result of unbalanced force.
The application of force on object (without opposing forces) results in acceleration in the direction of the vector. In this case the unbalanced force to the left will accelerate the object to the right.
There will by no change in the mass, which is constant, but the unbalanced force will cause the object to accelerate. Acceleration can be in a positive direction or a negative direction ("deceleration"), or it can be circular, in which the acceleration changes constantly, even if the velocity remains constant.
It can accelerate or decelerate, depending on the direction of force
Yes. If there is an unbalanced force on an object, the object will always accelerate in the direction of the force.
When the forces on an object are unbalanced, the object undergoes acceleration. Its direction is the direction of the net effective force, and its magnitude is the magnitude of the net effective force divided by the object's mass.
Not always, the unbalanced force only points in the direction of the acceleration so a body may be moving in the opposite direction. Example. A car moves with some speed to the right on a horizontal surface and lock the brakes, if the surface has friction, but the net force acting on it is equal to the frictional force pointing left and produces a Deceleration of carriage until stop, but while this happens continuously in motion to the right.
A negative acceleration, or deceleration, is the cause of unbalanced forces, where the force opposing the direction of travel is greater than the force along the direction of travel.
The result is acceleration of the object ... its speed of motion, or direction of motion, or both, change.