This is because gas is a liquid and moves around in the tank, when you accelerate the fuel moves to the rear of the tank, moving the float on the sending unit, making the gauge go up. In turn if you brake hard, the gauge will go down as the fuel will move away from the sending unit. They do put baffles in the tank to keep this from being to bad, but it does still happen on most vehicles.
The car began to accelerate as the driver pushed the gas pedal to the floor.
Gas tanks have a sensor that measures the level of gas in the tank. In some cars the sensor is at or near the back of the tank. When the car accelerates, gas piles up at the back of the tank making the sensor think it's full. If you slam on the brakes, the gauge will read emptier. This is caused by inertia.
Yes
Because you have the hand break on Clutch slipping
Could be as simple as a dirty/plugged fuel filter.
The driver was told to accelerate get faster because he was driving to slow.
You just press gas pedal :))
A person pressing the gas pedal.
magnetic flux lines.
no it does not
Shift to a lower gear.
The Engine,Transmission, and the gas pedal.