CHapter 11 - magnets Flashcards
1
Q
Fields
A
a region of influence in a space where specific types of matter or waves exert forces on other specific types of matter or waves, often described by a mathematical model - the result or effect of the field’s presence is a force.
2
Q
Gravitational fields
A
Caused by mass, and effects mass, it can bend light and electromagnetic waves.
3
Q
Electric fields
A
Electric fields are caused by electric charges, which can be positive or negative, and the affect charges as well. Similar charges repel, opposites attract.
4
Q
Ampere’s law
A
When current flows in a wire, a magnetic field is created around the wire and the strength of the magnetic field is directly proportional to the current.
