What is the relationship of motion and force?
the Big idea: Force and motion are fundamental to all matter in the universe. A force is anything that can push or pull on an object. Forces influence objects that are at rest or that are already in motion. Isaac Newton’s three laws of motion involve inertia, mass, velocity, and momentum.
What is the relationship between force and motion described by Newton’s first law?
Newton’s first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia.
What is the difference between motion and force?
a force is any interaction that, when unopposed, will change the motion of an object. motion is a change in position of an object over time. Motion is described in terms of displacement, distance, velocity, acceleration, time and speed.
What is Newton’s third law called?
Newton’s third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. We sometimes refer to this law loosely as action-reaction, where the force exerted is the action and the force experienced as a consequence is the reaction.
What happens when a force is balanced?
Balanced forces do not change the motion of an object. The motion of an object will not change if the forces pushing or pulling the object are balanced. An object that is sitting still will stay still if the forces acting on it are balanced.
What is the difference between balanced and unbalanced force?
If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
What are the two most important factors of momentum?
What two factors affect an object’s momentum? Momentum is affected by the mass of the object and its velocity (or speed).
What two factors affect acceleration?
The acceleration of an object depends on the mass of the object and the amount of the force applied to it.
What are the main factors affecting momentum?
The direction of the momentum vector will be the same as the velocity. Putting “Momentum” in Conceptual terms: Two factors affecting momentum is the mass and velocity of the object. An object that has a low velocity and a small mass produce minimal momentum because it would take a small force and/or time to stop it.
What can affect momentum?
The amount of momentum that an object has is dependent upon two variables: how much stuff is moving and how fast the stuff is moving. Momentum depends upon the variables mass and velocity.
What happens when two moving objects collide?
Newton’s third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).
Why is momentum always conserved?
The conservation of momentum is simply a statement of Newton’s third law of motion. During a collision the forces on the colliding bodies are always equal and opposite at each instant. These forces cannot be anything but equal and opposite at each instant during collision. Therefore the momentum is always conserved.
When two objects collide what happens to the momentum?
Momentum is of interest during collisions between objects. When two objects collide the total momentum before the collision is equal to the total momentum after the collision (in the absence of external forces). This is the law of conservation of momentum.
What happens when two objects collide at the speed of light?
If two objects strike each other at the speed of light(which is impossible because no object can travel even at a speed near to the speed of light) , depending on the mass and composition of those objects, that collision would lead to an explosion which will probably destroy not only earth but the whole solar system …
What happens if one of the cars collided with more force than the other one?
Forces between two colliding objects It doesn’t matter if one car is heavier (more massive) than the other. The push force from one car will equal the push force from the other.
What never changes when two or more objects collide?
Total momentum is always conserved between any two objects involved in a collision. When a moving object collides with a stationary object of identical mass, the stationary object encounters the greater collision force.
What does force equal to?
According to NASA, this law states, “Force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration.” This is written in mathematical form as F = ma. F is force, m is mass and a is acceleration.
Can a lighter object have more momentum than a heavier one how?
8.1 Linear Momentum, Force, and Impulse Can a lighter object have more momentum than a heavier one? How? No, because momentum is independent of the velocity of the object. No, because momentum is independent of the mass of the object.
How is gravity related to mass?
Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.