Final answer:
Deadly force refers to force that causes death or grievous bodily harm, and the Supreme Court rules that the death penalty may not be applied to minors. In physics, an external force is necessary to set a stationary object in motion in space.
Step-by-step explanation:
The use of force causing death or grievous bodily harm is indeed referred to as deadly force, so the answer to the given statement would be true. However, the Supreme Court's stance on the death penalty is that it may not be applied to those who were under 18 when they committed a crime, rather than it being always or never considered cruel and unusual punishment, or only applicable to acts of terrorism.
When discussing forces in physics, it is factual that an external force is required to set a stationary object in motion in outer space, as this is a fundamental concept described by Newton's First Law of Motion: an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction unless acted upon by an unbalanced external force. Therefore, the statement is true.