Final answer:
The statement that electric-field lines from a positive point charge spread out radially and point outward is true. This concept is important for understanding how charged particles interact and fields exert force.
Step-by-step explanation:
The statement regarding electric-field lines from a positive point charge is true. Electric-field lines are used in physics to represent the direction and strength of an electric field around a charged object. In the case of a positive point charge, the electric-field lines do indeed spread out radially and they point outward from the charge, indicating that the force exerted by the field would push a positive test charge away from the point charge.
Understanding the behavior of electric fields is crucial in various fields such as engineering, physics, and electronics. The concept of electric-field lines helps visualize how charged particles interact and is fundamental to comprehending phenomena in electromagnetism and electrostatics.