Forces
A push or pull that acts on an object.
What is force?
The tendency of an object to resist a change in its motion.
What is inertia?
What an object has if the product of its mass and velocity is large.
What is large momentum?
This attractive force acts only over a short range.
What is weak nuclear force?
A force that acts between any 2 masses and is attractive, it pulls objects together.
What is gravity?
Force is measured in these.
What are Newtons? (N)
A measure of the inertia of an object and depends on the amount of matter the object contains.
What is mass?
This is measured in units of kilogram-meters per second (kg*m/s).
What is momentum?
This powerful force acts only on protons and neutrons in the nucleus.
What is strong nuclear force?
The force of gravity acting on an object.
What is weight?
The overall force acting on an object after all the forces are combined.
What is a net force?
The state of motion of an object does not change as long as the net force acting on the object is zero.
What is Newton's First Law of Motion?
These forces do not cancel each other and produce a net force of zero.
What are action-reaction forces?
This force acts between charged objects or particles such as protons and electrons.
What is electric force?
This force is associated with charges particles.
What is electromagnetic force?
A force that opposes the motion of objects that touch as they move past each other.
What is friction?
The measure of the inertia of an object.
What is mass?
Whenever one objects exerts a force on a second object, he second object exerts an equal and opposite force on the first object.
What is Newton's 3rd Law of Motion?
The only 2 forces that can both attract and repel.
What are electric and magnetic forces?
This states that every object on the universe attracts every other object.
What is Newton's law of universal gravitation?
The 4 types of friction.
What are static, sliding, rolling, and fluid?
The acceleration of an object is equal to the net force acting on it divided by the object's mass.
What is Newton's Second Law?
If no net force acts on a system, then the total momentum of the system does not change. The name of the law.
What is the law of conservation of momentum?
This force acts on certain metals and on moving charges.
What are magnetic forces?
A center-directed force that continuously changes the direction of an object to make it move in a circle.
What is centripetal force?