the farthest distance between a planet or other body and the Sun. In month of June/July

the closest distance from the Sun

the action necessary to move things horizontally

first a sphere of earth and water, then a sphere of air, then a sphere of fire.

Sun revolve around the earth and other planet rotate around it.

Graphs are one way of showing the relationship between the given variable in physics. Each of the three (3) rectilinear motion values has its Graphical Representation.This is done to represent the changes in the system.

object will remain at rest unless it is acted upon by a force

Each force has its pair.

influence that can cause an object to change its velocity.

influence's inertia the bigger the mass the higher inertia

the magnitude and direction of the rate is constant

velocity of a body is an instant of time.

it simply changes from one type of energy to another. Ex. (A ball that bounce)

collision and impulse

free body diagram

light is a packet of energy.

Propagate either on a medium or vacuum.

perpendicular or against the wave

concerned with light and it's pattern and properties.

studies interference, diffraction, polarization, and other phenomena

where light is described by rays.

reflection of light from a surface

are light waves in which the vibrations occur in a single plane

Consist of Cross- sectional area & Magnetic Field Strength

any celestial body beyond our solar system.

the change in the wavelength or frequency of the waves with respect to the observer who is in motion relative to the wave source. example: A comet burned brighter in the sky an ambulance crossing you with its siren blaring

When a fly or a mosquito is inside a moving train, it is already moving at the same speed as the train. From their perspective, the air inside the train is also moving at the same speed as the train. Optical fiber refers to the technology that transmits information as light pulses along a glass or plastic fiber.