Motion Flashcards
Meters (m)
the unit for distance in the metric system
Strong Nuclear Force
Strong Nuclear Force
Ferromagnetic Materials
Permanently magnetic materials consisting of iron, often mixed with cobalt, nickel, or alnico.
Mass
The amount of matter in an object, measured in kg in the SI system of units
Direction
The orientation of the movement of an object, often in a compass direction
Newton’s Third Law
the law that for every action there is an equal and opposite reaction
Average Speed
a measure of how fast an object’s position changes, calculated from distance/time
Weak Nuclear Force
a force that resists particle decay in the nucleus
Electromagnetic Force
interactions (pushes and pulls) of electrically charged particles with other charged particles and magnetic poles
Distance
the length of the path traveled by an object
Electromagnet
a coil of wire that is magnetic because current flows through it
Acceleration
a measure of how quickly something changes its speed or direction, calculated from change in velocity/time
Position
the location of an object
Magnetic Field Lines
lines drawn to represent the direction and strength of a magnetic field.
Magnetic Field
the potential magnetic force in the space surrounding a magnet; proportional to the force on a magnetic pole in the space around the magnet
Gravity
a force that pulls all masses towards each other, with or without touching; Earth’s gravity pulls all objects near its surface downward
Magnetism
the response of a mineral when exposed to magnetic materials; a physical property
Newton’s Second Law
the law that greater masses require a greater force to achieve the same acceleration, F = ma
Gravitational Force
the force of attraction of all masses toward each other due to gravitational pull
Permanent Magnet
a piece of material in which most molecules align with the others, giving the piece of material a north pole and a south pole resulting in a magnetic field (force field)
Newton’s First Law / The Law of Inertia
the law that objects resist changes in their state of motion
Inertia
the tendency to resist changes in state of motion
Net Force
The vector sum of all forces acting on an object.
Temporary Magnet
a piece of material that acts like a magnet after being placed in a magnetic field; may lose its magnetic alignment immediately after the magnetic field is removed or may slowly lose magnetism over time
