Physics Newton's Laws Unit

Weight

Weight

The amount of matter in the object.

Mass

The force pulling the object downward.

9.81

Acceleration due to gravity.

Inertia

Object’s resistance to change in motion.

Force

A push or pull on an object.

Friction

The force that resists motion.

Normal force

The perpendicular force one surface exerts on another surface when the surfaces are in contact.

Scalar

Quantities that are completely specified by magnitude and have no direction.

Vector

Quantities that are completely specified by magnitude and direction.

V = d/t

Velocity’s formula

t = square(2*h/9.81)

Time’s formula

V*Sin0

Vertical velocity

V*Cos0

Horizontal velocity

dx = (Vi²*Sin20)/9.81

Range distance

First Law

The law states that an object with no net force acting on it remains at rest or moves with constant velocity in a straight line.

F = m*a

Second Law of Newton

Third Law

The law states that whenever one object exerts a force on a second object, the second object also exerts a force on the first object, equal in magnitude and opposite in direction.

Law of universal gravitation

The law states that every object in the universe attracts every other object with a force along an imaginary line between them.

Center of gravity

The point at which the entire weight of a body maybe considered to be concentrated, so that if supported at this point the body would remain in equilibrium in any position.

Parallel force

The force pushes the object down the inclined plane.

Projectile

Terms of position, velocity and acceleration.

Trajectory

The path followed by a projectile in motion.

Coefficient of friction

The degree of surface roughness.