Newton's Laws and Forces
What is Newton's 1st law?
An object at rest/in motion will stay at rest/in motion unless acted upon by another force
What is kinetic energy?
Energy an object has when it's in motion
If 2 objects have a negative charge they...
Repel
What is the equation to find the force?
F = M*A (force = mass x acceleration)
What is Newton's 3rd Law?
For every action there's an equal and opposite reaction
What is potential energy?
Energy stored in an object because of it's position
What is an insulator?
Objects that stop the flow of electrons from one place to another
What is the equation for momentum?
P = MV (momentum = mass x velocity)
What 2 things do forces have?
Magnitude and Direction
What is mechanical energy?
The energy an object has because of it's position and motion
What is a conductor?
Objects that allow electrons to flow from one place to another
What is the equation for potential energy?
PE = MGH (pe = mass x gravity x height)
Define a balanced force
Name 2 forces that are in an internal force
Gravitational, magnetic, electrical, spring
Which one of Newton's laws is used in electric forces?
What is the equation for kinetic energy?
KE = 1/2mv2 (KE = 1/2 mass x velocity squared)
Name 3 types of forces
Gravitational force, magnetic force, applied force, normal force, air resistance, friction, spring, tension
Name 2 forces that are in an external force
Applied, normal, tension, friction, air resistance
What is a vector quantity?
Something that has both magnitude and direction
What is the equation for acceleration?
a = Vf - Vi (a = final velocity - initial velocity/time)
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