Unit 1
Galileo was these three things
what is astronomer, physicist, and engineer
An object at rest tends to stay at rest. An object in motion will stay in motion.
What is Newton's First Law of Motion?
Every action force has an equal and opposite reaction force.
A characteristic of a substance that can be measured or observed without changing the chemical identity of the substance.
What is physical property?
Made up of planets, stars, star systems, and galaxies. All the matter and energy in space.
What is the universe?
Another great Greek philopsopher who had a large impact on science, and was a student of Plato.
Who was Aristotle?
A push or pull, that occurs when two objects touch each other. This can also happen without contact.
What is force?
An instrument that can measure the amount of electric charge on an object.
What is an electroscope?
The quantity of matter in an object.
What is mass?
What is gravity?
Lived in Sciliy and studied the properties of matter, optics and mathematics.
Who was Archimedes?
A force that acts through touch.
What is contact force?
Applies a force on any object with mass, while a field is created by any object with mass.
What is a gravitational field?
The amount of space an object occupies.
Massive enough to be spherical but not massive enough to clear everything around itself.
What is a dwarf planet?
A Chinese astronomer and mathematician who lived around 100 AD who mapped thousands of stars and invented a device that detected the direction of far away earthquakes.
Who was Zhang Heng?
Not all forces need touch from something else to affect it.
What is field forces?
Applies force on magnets and some metals, with a field created by magnets.
What is a magnetic field?
Related to both mass and volume. It is the measure of how much mass there is in a given amount of space.
What is density?
Type of planet that does not have a solid surface.
A time period of research and discovery that was the beginning of modern science during the 1400's and 1500's.
What was the Scientific Revolution?
Objects with a greater mass have a greater resistance to being put in motion.
Applies force on objects that have a charge, with a field created by objects that have a charge.
What is an electric field?
The temperature at which a substance changes from a solid to a liquid.
What is a melting point?
What are the sun and moon?