When you slow down in a vehicle without stepping on the brakes, the RPMs typically increase because the engine needs to work harder to maintain a consistent speed. This is due to the transmission downshifting to a lower gear to match the reduced speed of the vehicle, increasing the engine speed.
An object that is accelerating is either speeding up or slowing down. If the acceleration is in the same direction as the velocity, the object is speeding up. If the acceleration is opposite to the velocity, the object is slowing down.
Acceleration refers to the rate of change of an object's velocity, which can include both speeding up and slowing down. When an object accelerates, it can increase or decrease its speed depending on whether the acceleration is in the same direction as the velocity (speeding up) or in the opposite direction (slowing down).
When an object is speeding up or slowing down, it is experiencing acceleration. When it is turning, it is undergoing rotation or changing direction.
The force that makes a parachute go up is called drag. As the parachute deploys, it creates drag by slowing down the descent of the person wearing it, leading to an upward force that helps to slow down their fall.
The object is experiencing acceleration when it is speeding up or slowing down, and turning is an example of angular acceleration. Acceleration is the rate of change of velocity, either in speed or direction.
When you are shifting gears, your RPMs will go down because your clutch is being pressed. If your RPMs don't go back up when you release your clutch, you should see a mechanic.
Chances are it is a stuck fuel injector, or possibly a vacuum line leak.
check egr valve
It is growing up.
An object that is accelerating is either speeding up or slowing down. If the acceleration is in the same direction as the velocity, the object is speeding up. If the acceleration is opposite to the velocity, the object is slowing down.
The Idle Air Control valve located in the throttle body.
idle air control valve
The spark plug gap can cause the RPMs to fluctuate, while idling. The more probable cause of the fluctuating RPMs is a bad camshaft.
It sounds like you have a bad shifter cable. I had the same thing happing and i had it replaced and no proble since then. GOODLUCK
Acceleration refers to the rate of change of an object's velocity, which can include both speeding up and slowing down. When an object accelerates, it can increase or decrease its speed depending on whether the acceleration is in the same direction as the velocity (speeding up) or in the opposite direction (slowing down).
mass air flow sensor
Your car most likely has an automatic transmission. If you're noticing the rpms going up and down it is because your automatic transmission is using its torque converter. it uses the torque converter to get the transmission up to speed with the engine and then it locks but when the torque gets to be too much for the engine it unlocks and speeds back up again.