Kinetic Friction
What is friction that opposes motion once the motion has already started?
He developed a new math called calculus, did the famous prism experiment, and discovered the 3 laws of motion.
Who is Sir Isaac Newton?
Newton's 2nd Law
What is when an object is acted on by one or more unbalanced forces, the total force is equal to the mass of the object times the resulting acceleration. (TF = mass x acceleration)
Static Friction
What is friction that opposes the initiation of motion?
DAILY DOUBLE!!! He believed that objects at rest want to stay at rest, and this is why everything in motion eventually slows down and stops.
Who is Aristotle?
In one of our experiments, the marble rolled straight away from the pie tin when it came to the cut out section because of this.
There were no more walls to keep the marble rolling in a circle.
DAILY DOUBLE!!! The sum of all the forces acting on an object.
What is net force or total force?
The motion of an object when it is falling solely under the influence of gravity.
What is free fall?
The three scientists who were eventually able to change scientific thought about certain things & dispose of many of Aristotle's mistakes.
Who are Galileo, Copernicus, & Kepler?
DAILY DOUBLE!!! A person jumping from an airplane & wishing to land on a hill cleared of trees will jump out of the plane before he can even see the hill, as they are approaching the hill, or when they are directly over the hill.
What is "as they are approaching the hill".
A box is moving at a constant velocity, it is neither speeding up nor slowing down. What is it's rate of acceleration?
What is 0?
DAILY DOUBLE!!! There is an action & reaction force when a little girl jumps on a trampoline. Explain
A. Which is the action force &
B. Which is the reaction force.
A. What is little girl? B. What is the trampoline?
DAILY DOUBLE!!!! Force
What is a push or pull that acts on an object?
A vector quantity whose magnitude is usually measured in Newtons.
What is force?
Inertia
What is the tendency of an object to resist changes in its velocity?
He lived from 1564 to 1642 and was one of the first scholars to promote doing experiments to develop scientific arguments.
Who is Galileo?
In one of our experiments, this kept spinning even after it was physically stopped, due to inertia.
What is the raw egg?
The gas being pushed out of a rocket pushes back on the rocket, causing the rocket to move in the opposite direction.
What is thrust?