What is a high speed electron with a negative charge called?

How will the system respond to a temperature increase?

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

The ability to make things happen is also called a. heat b. force c. matter d. energy