Too-Dee
The path that an object follows when thrown, launched, or otherwise projected near the surface of the Earth.
What is the trajectory?
This equation gives vertical displacement when initial velocity, time, and acceleration are known.
What is y=y0+vyt + 1/2ayt2
In projectile motion, this component of velocity remains constant (ignoring air resistance).
What is horizontal velocity?
On a velocity vs. time graph, this indicates acceleration due to Earth's gravity.
What is slope with magnitude 9.81 m/s2?
The symbol for acceleration due to gravity.
What is "g?"
A basketball follows this kind of path when shot toward the hoop.
What is a parabolic path?
The mathematical name for the shape of the path that projectiles follow when launched.
What is a parabolic (or quadratic) path?
This is the equation to calculate horizontal displacement when acceleration is zero.
What is x = vx * t
This component of motion is affected by gravity.
What is vertical motion?
On a position vs. time graph, a horizontal line means the object is ________.
What is stationary?
This symbol represents initial vertical velocity.
What is v0y?
A dropped object and a horizontally launched object from the same height do this at the same time.
What is hit the ground?
The axes chosen upon which we represent motion, which also signify the positive or negative direction of our values.
What is a coordinate system?
The equation used to find time of flight for a projectile launched horizontally from a height.
What is t=sqrt(2*y/g)?
At the top of its trajectory, this component of velocity is zero.
What is vertical velocity?
In a dot-diagram, this happens to the vertical spacing of dots as the projectile rises.
What is a decrease in dot spacing?
The horizontal distance traveled by a projectile.
What is Delta x ?
This is the optimal launch angle for maximum horizontal range.
What is 45 degrees?
This letter is commonly chosen to represent the vertical dimension in AP Physics.
What is "y?"
The kinematic equation that is missing time but includes velocity squared.
What is v2=v02+2ad?
This describes the relationship between horizontal and vertical motion in a projectile.
What is independent?
In a velocity vector diagram, this component stays the same throughout the flight.
What is the horizontal component of velocity?
This Greek letter is commonly used to represent launch angle.
What is theta ?
On the Moon, this part of projectile motion would be affected the most.
What is the vertical acceleration or time of flight?
vx and vy can sometimes trip you up. They are also known as these, and when added together make up on objects real velocity.
What are perpendicular components of a vector?
The range equation for angled projectiles that land at the same height they are launched.
What is x = 2* V0cos(theta) * (-V0sin(theta)/g)?
A projectile hits the ground. These determines how long it was in the air.
What are height and initial vertical velocity?
Often, students can find themselves in hot water when describing a velocity vs time graph as a "straight line" since this doesn't necessarily mean that the velocity is zero, only that it is _______.
What is constant?
The unit for velocity in SI (Standard International) units.
What is meters per seconds?
A cannonball is launched horizontally from a cliff. These determine how far it travels.
What are the time in the air and vx?