* Electric Fields and Charges: Electric fields exert forces on charged particles. The force on a charged particle is determined by the strength of the electric field and the magnitude and sign of the charge.
* Electron's Charge: Electrons have a negative charge.
* Direction of Force: The force on a negative charge in an electric field is opposite to the direction of the electric field.
Therefore, if an electron travels in the same direction as the electric field, it will experience a force that opposes its motion, causing it to slow down (decelerate).
Analogy: Imagine pushing a toy car uphill. The car is analogous to the electron, and the uphill slope is analogous to the electric field. The force of gravity (like the electric field) acts against the motion of the car, causing it to slow down.
Note: If the electron travels in the opposite direction of the electric field, it will accelerate. This is because the force will be in the same direction as its motion.
