#### Transcript of Physics 30 Principles

**Physics 30 Principles**

Uniform Motion

Circular Motion

Uniform circular motion is a movement of an object along the circumference of a circle or rotation along a circular path with a constant velocity.

A ball swinging around a post.

A satellite in orbit.

v = d / t = 2•pi•R / T = frequency • 2•pi•R a = v2 / R

Conservation on Momentum

The conservation of momentum is a law that states that total momentum will be constant regardless of other changes in a system.

Conservation of Mass Energy

Uniformly Accelerated

Motion

Work-Energy Theorem

Conservation of Energy

Conservation of Charge

Conservation of Nucleons

Wave Particle Duality

**Alex Garlock**

The uniform motion according to Newton's first law, a body with force acting on it will continue to move with uniform speed unless acted upon by another force.

df-di= change in d

change in d= average velocity x change in time

If an object is sitting on the ground and is stationary then the forces are balanced.

If an object slides on a frictionless surface it will not stop unless something stops it.

v=d/t

Uniformly accelerated motion is when the acceleration of an object is constant and the velocity is constantly changing.

F=ma a= v/t F=mg

An object falling will accelerate at 9.81 m/s2

If you roll an object it will decelerate with a constant velocity because of friction.

Ek = 1/2 mv2

The work-energy theorem states that the work done on an object is equal to the change in its kinetic energy: W = ΔK. Work done on an object by a net force equals the change in kinetic energy of the object.

P = mv

Ft=mv

P = W/t

The law of conservation of energy states that the total energy of an isolated system cannot change but is conserved over time.

Ek = 1/2 mv2

Ep = mgh

Ek = Ep

This refers to the mass-energy equivalence where mass converting to energy at the speed of light is always conserved.

E = mc2

Energy = mass x velocity square

where, c is the velocity of light.

charge cannot be created or destroyed but can only be transferred from one object to another or it can be separated or polarized within an object.

The law of Conservation of Nucleons states that the sum of protons and neutrons before and after a nuclear reaction will be the same.

Wave particle duality is a theory that proposes that EMR acts as both a wave and a particle.

A 15.0kg box is lifted at a constant velocity 1.5m. How much work is done on the box?

W= E

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