Famous Old Guys
Famous Greek scientist, studied motion and divided it into two types: natural motion and violent motion
Who is Aristotle?
The force that acts between materials that touch as they move past each other
What is friction?
The amount of space an object takes up
What is volume?
Galileo let a ball roll down one incline and up another... How high did the ball roll up the second incline compared to its initial height?
The ball rolled to the same height
The combination of all forces acting on an object
What is net force?
Astronomer who was one of the first scientists to understand that Earth and other planets moved around the sun
Who is Nicolaus Copernicus?
The property of an object to resist changes to its state of motion
What is inertia?
The force of gravity on an object
What is weight?
An object at rest tends to do what if no outside forces act on it?
What is stay at rest?
A quantity that has both magnitude and direction
What is a vector quanitity?
Italian scientist who argued that force is required to keep an object moving if friction is present
Who is Galileo?
The law of motion that states that an object in motion will stay in motion unless acted on by an outside force and an object at rest will stay at rest unless acted on by an outside force
What is Newton's First Law of Motion or The Law of Inertia?
What is mass?
An object in motion tends to do what if no outside forces act on it?
What is stay in motion?
A quantity that has magnitude only and no direction
What is a scalar quantity?
Famous physicist that developed laws of motion including the law of inertia
Who is Sir Isaac Newton?
The fundamental unit in which mass is measured
What is the kilogram?
The standard unit of force
What is a newton?
How does an object's mass impact the effect of inertia on the object?
The more mass an object has, the greater the force of inertia... The less mass an object has, the lesser the force of inertia
Objects at rest are said to be in this kind of equilibrium...
What is static equilibrium?
German-born physicist best known for developing the theory of relativity and his equation, E=mc(squared)
Who is Albert Einstein?
A state in which forces are balanced and no physical changes occur (Chapter 2 Review!)
What is mechanical equilibrium or equilibrium?
I have a 1 kg bag of nails... What is this object's weight in pounds?
What is 2.2 lbs?
Do mass and weight stay the same?
Mass stays the same but weight changes based on location (an object will have a different weight on Earth than it would on the move, etc.)
Objects moving at a constant speed in a straight-line path are said to be in this kind of equilibrium
What is dynamic equilibrium?