Too-Dee
Equations
Vertical vs Horizontal
Graphs and Diagrams
Variables and Constants
Real-world
100

The path that an object follows when thrown, launched, or otherwise projected near the surface of the Earth.

What is the trajectory?

100

This equation gives vertical displacement when initial velocity, time, and acceleration are known.

What is y=y0+vyt + 1/2ayt2

100

In projectile motion, this component of velocity remains constant (ignoring air resistance).

What is horizontal velocity?

100

On a velocity vs. time graph, this indicates acceleration due to Earth's gravity.

What is slope with magnitude 9.81 m/s2?

100

The symbol for acceleration due to gravity.

What is "g?"

100

A basketball follows this kind of path when shot toward the hoop.

What is a parabolic path?

200

The mathematical name for the shape of the path that projectiles follow when launched.

What is a parabolic (or quadratic) path?

200

This is the equation to calculate horizontal displacement when acceleration is zero.

What is x = vx * t

200

This component of motion is affected by gravity.

What is vertical motion?

200

On a position vs. time graph, a horizontal line means the object is ________.

What is stationary?

200

This symbol represents initial vertical velocity.

What is v0y?

200

A dropped object and a horizontally launched object from the same height do this at the same time.

What is hit the ground?

300

The axes chosen upon which we represent motion, which also signify the positive or negative direction of our values.

What is a coordinate system?

300

The equation used to find time of flight for a projectile launched horizontally from a height.

What is t=sqrt(2*y/g)?

300

At the top of its trajectory, this component of velocity is zero.

What is vertical velocity?  

300

In a dot-diagram, this happens to the vertical spacing of dots as the projectile rises.

What is a decrease in dot spacing?

300

The horizontal distance traveled by a projectile.

What is  Delta x ?

300

This is the optimal launch angle for maximum horizontal range.

What is 45 degrees?

400

This letter is commonly chosen to represent the vertical dimension in AP Physics.

What is "y?"

400

The kinematic equation that is missing time but includes velocity squared.

What is v2=v02+2ad? 

400

This describes the relationship between horizontal and vertical motion in a projectile.

What is independent?

400

In a velocity vector diagram, this component stays the same throughout the flight.

What is the horizontal component of velocity?

400

This Greek letter is commonly used to represent launch angle.

What is  theta ?

400

On the Moon, this part of projectile motion would be affected the most.

What is the vertical acceleration or time of flight?

500

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?

500

The range equation for angled projectiles that land at the same height they are launched.

What is x = 2* V0cos(theta) * (-V0sin(theta)/g)?

500

A projectile hits the ground. These determines how long it was in the air.

What are height and initial vertical velocity?

500

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?

500

The unit for velocity in SI (Standard International) units.

What is meters per seconds?

500

A cannonball is launched horizontally from a cliff. These determine how far it travels.

What are the time in the air and vx?