Static Fraction

Static friction

a resistive force between stationary objects due to the roughness of the two surfaces in contact

Newtons third law

the law of action and reaction

Conservation of momentum

a law that states that the total momentum is conserved in a closed system

sliding friction

Sliding friction is friction that acts on objects when they are sliding over a surface.

mass

the amount of matter in an object

Centripetal force

any force that causes centripetal acceleration

Gravitational force

an attractive force that occurs between all objects that have mass

weight

a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.

friction

the resistance that one surface or object encounters when moving over another.

Inertia

a tendency to do nothing or to remain unchanged.

Fluid friction

Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other. Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces.

Newtons first law

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Strong nuclear force

In nuclear physics and particle physics, the strong interaction is one of the four known fundamental interactions, with the others being electromagnetism, the weak interaction, and gravitation.

Force

strength or energy as an attribute of physical action or movement.

net force

In mechanics, the net force is the vector sum of forces acting on a particle or object. The net force is a single force that replaces the effect of the original forces on the particle's motion.

Terminal velocity

the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration.

Projectile motion

Projectile motion is a form of motion experienced by an object or particle that is projected near the Earth's surface and moves along a curved path under the action of gravity only. This curved path was shown by Galileo to be a parabola, but may also be a line in the special case when it is thrown directly upwards.

Rolling friction

Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation of the wheel, roadbed, etc., is recovered when the pressure is removed.

gravity

the force that attracts a body toward the center of the earth, or toward any other physical body having mass.

Weak nuclear force

In nuclear physics and particle physics, the weak interaction, which is also often called the weak force or weak nuclear force, is one of the four known fundamental interactions, with the others being electromagnetism, the strong interaction, and gravitation.

Momentum

the quantity of motion of a moving body, measured as a product of its mass and velocity.

newtons second law

Newton's second law is a quantitative description of the changes that a force can produce on the motion of a body. It states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.

Electromagnetic force

Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles

Air resistance

air resistance describes the forces that are in opposition to the relative motion of an object as it passes through the air.

Newton

the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second, and is equivalent to 100,000 dynes.