Review Laws/Formulas

Laws

100

Like charges repel and opposite charges attract.

Law of Electric Charge

200

Energy can never be created or destroyed, it can only change forms.

Law of Conservation of Energy

300

Current is directly proportional to voltage and inversely proportional to resistance.

Ohm's Law

400

For every action force there is an equal and opposite reaction force.

Newton's 3rd Law

500

Every object will remain at rest, or will continue to move in a straight line with a constant speed, unless the object is acted on by an unbalanced net force. (both names for full points)

Newton's 1st Law also called the Law of Inertia

Formulas

100

Formula used to find the Mechanical Energy of an object.

ME = KE + PE

or Kinetic Energy + Potential Energy 

200

s= d/t

Speed is equal to the distance of the time.

300

Gravitational Potential Energy of an object

PE=F_g × h

or the force of gravity multiplied by the height of the object

400

Average velocity of an object.

v ̅=(x_f -x_i) /∆ t

500

Acceleration of an object. (both formulas for full credit)

a̅= (v_f -v_i) /∆ t

a=F/m

Mrs. Pruett

100

Number of children

4

200

Teaches

Engineering and Physics

300

Favorite carbonated beverage

Dr. Pepper

400

Hopes for your Exams.

You apply yourself and always do your best.

500

Went to college.

BYU aka Brigham Young University

More Formulas

100

The formula to find the net force of an object.

F_NET = F₁ + F₂ + F₃ + … + Fn

or the sum of all the forces acting on the object

200

W=F × d

Work is the force multiplied be the distance traveled.

300

Kinetic Energy of an object.

KE= ½ m × v²

or one half the mass of the object multiplied by the velocity of the object squared.

400

Solving for the momentum of a object.

ρ=m×v

500

Two ways of finding the Electric Potential.

V=EPE/q (electric potential energy /charge)

V=I × R (current × resistance)

More Laws

100

Like poles repel and opposite poles attract, and there is no such thing as a monopole.

Law of Magnetic Poles

200

Charges are not created or destroyed they are only able to be passed from one object to another.

Law of Conservation of Charge

300

Wires with current in the same directions attract. Each wire acts like a magnet facing the same direction.

Ampere's Law

400

The acceleration of an object depends on the mass of the object and the amount of force applied.

Newton's 2nd Law

500

An observations that has been proven over and over and never disproven.

Scientific Law