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Newton's First law: When viewed in an inertial reference frame, an object either is at rest or moves at a constant velocity, unless acted upon by an external force.
The wording varies widely, e.g.: Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
What the law says is that there is nothing intrinsic to a mass that can affect its motion or lack of motion. Whether the object is a molecule or a planet, if it is in motion in space, and the sum of all outside forces is and remains zero, the thing will continue moving at the same speed until the week after eternity.
Take a walk in the woods and drop a Baseball on the ground. If no external forces move it, it will be there the next time the urge to walk takes one through the woods. There is nothing about a baseball that will cause it to move on its own.
Take a drive down the road at 30 MPH. If the car blows a tire and rams a bridge abutment, the person will continue moving at 30 MPH until the steering wheel applies an external force that decelerates the body. There is nothing about a human body in motion that will cause it to stop moving by itself. Newton's First Law can be ignored but not violated. That's why there are seat belts and air bags.
In short, the answer to the question is that the only thing that can affect the state of motion of an object is a force that is external to the object.
• If a force capable of altering its speed by one meter per second is applied to the moving mass in its direction of travel, its speed will increase by 1 m/s.
• If the same force is applied opposite the direction of travel, it will slow down at a rate of 1 m/s.
• If the same force is applied both in and opposite its direction of travel, its speed will not change.
• If the same force is applied perpendicular to the axis of motion, the object will accelerate in that direction at 1 m/s, but will continue to move in its original direction. Trigonometry and vectors then come into play and it gets complicated.
What else can I help you with?
What term can be describe both the speed and direction of an objects motion?
Velocity. Velocity is a vector quantity that describes both the speed (magnitude) and direction of an object's motion.
What term describes the tendency for objects to resist in motion?
Inertia is the term that describes the tendency of objects to resist changes in their state of motion.
Which term describes the the tendency for objects to resist change in motion?
Inertia describes the tendency for objects to resist changes in their motion. This means that objects will remain at rest or in motion at a constant velocity unless acted upon by an external force.
What term describes the tendency of an object to resist a change in motion?
The term is inertia. It is the property of matter that causes objects to resist changes in their state of motion.
Which term best describes the measure of the energy of motion of particles in matter?
The term that best describes the measure of the energy of motion of particles in matter is temperature. Temperature is a physical quantity that relates to the average kinetic energy of particles within a substance.
What term can be describe both the speed and direction of an objects motion?
Velocity. Velocity is a vector quantity that describes both the speed (magnitude) and direction of an object's motion.
What term describes the tendency for objects to resist in motion?
Inertia is the term that describes the tendency of objects to resist changes in their state of motion.
Which term describes the the tendency for objects to resist change in motion?
Inertia describes the tendency for objects to resist changes in their motion. This means that objects will remain at rest or in motion at a constant velocity unless acted upon by an external force.
What term describes the tendency of an object to resist a change in motion?
The term is inertia. It is the property of matter that causes objects to resist changes in their state of motion.
Which term best describes the measure of the energy of motion of particles in matter?
The term that best describes the measure of the energy of motion of particles in matter is temperature. Temperature is a physical quantity that relates to the average kinetic energy of particles within a substance.
What term can describe both the speed and direction of an object's motion?
Velocity is the term that describes both the speed and direction of an object's motion. It is a vector quantity that includes magnitude (speed) and direction.
What is a Physics term regarding movement or rest?
Inertia is a physics term that describes an object's resistance to change in its state of motion, whether that be at rest or already in motion. Objects at rest tend to stay at rest, while objects in motion tend to stay in motion unless acted upon by an external force.
Which term describes how much there is of product?
Quantity
What term describes a relationship in which one quantity is a multiple of the other quantity?
Direct variation
What term refers to the product of an objects mass and velocity?
The product of an object's mass and velocity is referred to as momentum. It is a vector quantity that represents an object's motion.
What is the term for motion in which the velocity of the moving objects does not change?
uniform motion
What term describes the quantity of matter present in an object?
The term that describes the quantity of matter in an object is "mass." Mass is a measure of the amount of material in an object and is typically measured in units such as kilograms or grams.
