What is the jolt your car feels when speeds up or slows down?

The jolt your car feels when it speeds up or slows down is referred to as "acceleration" and "deceleration," respectively. These changes in motion are caused by the application or release of force, resulting in a change in the car's velocity.

1. Acceleration:

Acceleration is the rate of increase in the velocity of an object. When you press down on the gas pedal of your car, you apply force to the engine, which in turn causes the wheels to rotate faster. This increase in the rotational speed of the wheels results in an acceleration of the car. The faster you press on the gas pedal, the greater the acceleration will be.

2. Deceleration:

Deceleration is the rate of decrease in the velocity of an object. When you release the gas pedal or apply the brakes, you are reducing the force applied to the engine or applying an opposing force, respectively. This causes the wheels to slow down, resulting in a deceleration of the car. The harder you press on the brakes, the greater the deceleration will be.

In summary, when you speed up (accelerate) in your car, you feel a jolt due to the sudden increase in velocity. Conversely, when you slow down (decelerate), you experience a jolt due to the sudden decrease in velocity. These jolts are a result of the change in the car's motion and are influenced by the amount of force applied.