Each body in the universe attracts every body with a force that is directly proportional to the product of their masses and inversely proportional to the squared distance between their centres
Back
Card 17
Front
The gravitational force that Earth exerts on any object or near its surface
Back
Card 18
Front
The speed of light is constant when travelling through a specific medium
Back
Card 19
Front
A change of wave speed in different media, while its frequency remains constant
Back
Card 20
Front
The ratio of the speed of light in air to the speed of light in a specific medium
Back
Card 21
Front
The imaginary line perpendicular to the surface between two different optical media
Back
Card 22
Front
A measure of the speed of light or other electromagnetic waves through a medium
Back
Card 23
Front
The angle between the incident ray and the normal
Back
Card 24
Front
The angle between the refracted ray and the normal
Back
Card 25
Front
Gives the relationship between the angle of incidence, the angle or refraction and the refractive index when light moves from one medium to another
