Earth In Space #1 Flashcards
He was an English Scientist, and the first person to realize that gravity exists everywhere. (1660s)
Who was he?
Isaac Newton
Law of Universal Gravitation states that:
Every object in the universe attracts every other object.
Every object in the universe attracts every other object. What’s the name of the law?
Law of Universal Gravitation
What does LUG stands for?
Law of Universal Gravitation
What is gravity?
Gravity is the force of attraction based on the mass of two objects and distances between the two objects.
What is the name of the force of attraction based on the mass of two objects and distances between the two objects?
Gravity
What is mass?
Amount of matter in an object
What is the amount of matter in an object?
Mass
What is the force of gravity on an object?
Weight
What is weight?
The force of gravity on an object
What does Newton’s first law of motion states?
An object at rest will stay at rest and an object in motion will stay in motion with constant speed and direction unless acted on by a force.
What is the law that says: An object at rest will stay at rest and an object in motion will stay in motion with constant speed and direction unless acted on by a force?
Newton’s First Law of Motion
What is an orbit?
Path followed by an object as it travels around a larger object
What is the path followed by an object as it travels around a larger object?
Orbit
What keeps Earth in Orbit?
Newton concluded that two factors -inertia and gravity- combine to keep Earth in orbit
Newton concluded that two factors -_____ and ______ - combine to _____ ____ ___ ____ .
Newton concluded that two factors -inertia and gravity- combine to keep Earth in orbit.
What is inertia?
Resistance of any physical object to any change in its state of motion, including speed and direction. It is the tendency of objects to keep moving on a straight line at constant velocity.
Resistance of any physical object to any change in its state of motion, including speed and direction. It is the tendency of objects to keep moving on a straight line at constant velocity. What is this?
Inertia
What are the two movements that Earth practices?
Rotation and Revolution
What is rotation?
Time it takes something to spin around its axis (a day)
What is the time it takes something to spin around its axis (a day) ?
Rotation
What is revolution?
Time it takes something to make a complete orbit ( A year)
What is the time it takes something to make a complete orbit ( A year) ?
Revolution
Who was Isaac Newton and what did he do?
He was an English Scientist, and the first person to realize that gravity exists everywhere. (1660s)
