PHYSICAL SCIENCE

Geocentrism

________- theory of the structure of the solar system (or the universe) in which Earth is assumed to be at the center of it all.

Egyptian civilizations

Babylonian and ________ used a primitive version of a sundial, called Gnomon, in systematically observing the motion of the sun.

light rays

The ________ coming from the sun are parallel, and the Earth is curved.

Galileo

________ observe the sunspots, the phases of Venus, and the craters on the moon In natural motion, an object will move and will eventually return to its natural state depending on the composition that the object is made of.

Eclipse

________- An obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination.

Sphere

________- the shape of the Earth according to ancient Greeks.

Eratosthenes

________- ancient Greek philosophers computed for the circumference of the Earth.

gravity of earth surface

The ________ is 9.8m /s².

great contribution of Tycho Brahe

The ________ was to observe planetary positions with sufficient accuracy so that Kepler could later use the data to discover the laws of planetary motion.

Galileo

According to ________, free- fall undergoes constant acceleration.

Galileo

________ believed that a projectile is a combination of uniform motion in the horizontal direction and uniformly accelerated motion in the vertical direction.

Sphere

the shape of the Earth according to ancient Greeks

Eratosthenes

ancient Greek philosophers computed for the circumference of the Earth

250,000 stadia

the circumference of the Earth according to Eratosthenes computations

Astronomy

the branch of physical science dealing with heavenly bodies

29.5

How many days is it from one full moon to the next full moon

Mercury

the nearest planet from the Sun

Johannes Kepler

Brahe's most famous student

Kepler's first law

Planets move along an elliptical path with the Sun at one of the foci