Newton's First Law says that an object at rest will remain at rest, and an object in motion will remain in motion unless it is acted on by an outside force. This is the law of
.. (1 point)
O gravity
O velocity
• inertia
O momentum
• inertia
The correct answer is inertia. Newton's First Law, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity, unless acted upon by an outside force. Inertia is the tendency of an object to resist changes in its motion.
The correct answer is inertia.
To understand why, let's break down the question and examine each option.
1. Gravity: Newton's First Law does not specifically address gravity but rather the behavior of objects in motion or at rest. While gravity can certainly be considered as an external force acting on an object, it is not the direct focus of this law.
2. Velocity: Velocity refers to the rate at which an object changes its position with respect to time. While Newton's First Law indirectly relates to velocity by stating that an object in motion will remain in motion, it is not the law's specific focus.
3. Inertia: This is the correct answer. Inertia is defined as an object's resistance to changes in its state of motion. According to Newton's First Law, an object at rest will remain at rest (due to its inertia) unless acted upon by an outside force. Similarly, an object in motion will continue to move in a straight line at the same speed unless acted upon by an external force.
4. Momentum: Momentum is a physics concept that combines the object's mass and velocity. Although momentum is related to objects in motion, it is not mentioned explicitly in the context of Newton's First Law.
In summary, Newton's First Law is also known as the law of inertia because it describes how objects at rest or in motion will behave unless acted upon by an external force.