Physics is Awesome
Every object continues in a state of rest or of uniform speed in a straight line unless acted on by an external force.
What is Newton's First Law of Motion.
A ______, in the simplest sense, is a push or a pull.
When the net force on something is zero, we say that something is in _________ __________.
What is Mechanical Equilibrium.
An upward force opposite to the force of Earth's gravity and equal to the weight of the object is known as the ______ force or ______ force?
What is Normal or Support Force.
The net force on an object in _______ _______ balance out to zero even though the object has constant velocity.
What is dynamic equilibrium?
When a falling object is free of all restraints - no friction, with the air or otherwise - and falls under the influence of gravity alone, the object is in a state of _____ _____.
What is free fall.
As the normal force on an incline as the incline gets larger, the normal force gets _______ while the force of _______ gets stronger.
DAILY DOUBLE!!!
What is weaker, and what is gravity.
We measure forces using a unit called ________.
What is a Newton.
Force = mass times acceleration.
What is Newton's Second Law of Motion.
When surfaces slide or tend to slide over one another, a force of _______ acts on them.
What is friction.
The quantity of matter in an object. It is also the measure of the inertia or sluggishness that an object exhibits in response to any effort made to start it, stop it, or change its state of in any way.
What is mass.
The force on an object due to gravity.
Weight.
Mass and acceleration have are ______ _______ to one another.
What is inversely proportional.
The length of a vector is referred to as its _________.
What is Magntitude.
Whenever one object exerts a force on a second object, the second object simultaneously exerts an equal and opposite force on the first.
What is Newton's Third Law of Motion.
The maximum resistive force that the surface can exert on the object is called the maximum ______ ______ force.
DAILY DOUBLE!!!
What is Static Friction.
Once an object starts moving, we call the friction component of the force that the surface exerts on the object the _______ _______ force.
What is kinetic friction.
The maximum static friction force is directly proportional to the magnitude of the ______ ______.
What is the Normal Force.
When air resistance becomes and equal reactionary force to an object in free fall we say that the object has reached its _______ _______.
What is terminal velocity.
A _____ is an object that is thrown, kicked, batted, or otherwise launched into motion, and then allowed to follow a path determined solely by the influence of gravity.
What is a Projectile.
T = square root of 2d/g is the equation for ______ ______.
What is hang time.
An object in free fall will _______ at a constant rate while gaining _______ at an exponential rate.
What is accelerate and what is distance.
A projectile is launched with an initial speed of 12 m/s. At its highest point its speed is 6 m/s. What was the launch angle of the projectile?
What is 60 degrees.
The Coefficient of Static Friction.
A softball is thrown from the origin of an x, y coordinate system with an initial speed of 18 m/s at an angle of 35 degrees above the horizontal. Find the positions of the softball at time = 1.5s.
What is 22 meters.