Definitions
the rate at which an object moves
What is speed?
force that holds the center of an atom
What is a strong force?
a simple machine that magnifies either force or motion
What is a lever?
What is Newton's first law?
the speed of an object in a given object
What is velocity?
force that attracts objects toward the center of the Earth
What is gravitational force?
a fixed point around which the rigid part of a lever rotates
What is a fulcrum?
an object will stay in motion with a constant velocity until an outside force acts upon it
What is Newton's first law?
a push or pull exerted on an object in an effort to change that object's velocity
What is force?
force that makes electricity flow in an electrical circuit
What is electromagnetic force?
the pushing down force on a lever
What is the effort?
when an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration
What is Newton's second law?
a closed path through which electric current flows
What is an electrical circuit?
an electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair
What is static electricity?
the kind of lever a seesaw is
What is a first-class lever?
for every action there is an equal and opposite reaction
What is Newton's third law?
a device that either multiplies or redirects a force
What is a simple machine?
an object a power source turns on
What is a load?
the kind of lever when the fulcrum is at one end of the bar, and the resistance is between the fulcrum and the effort
this causes an object to change its speed or direction
What is force?