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Vocabulary
Vectors
Projectile Motion
Horizontal/Vertical
Math!
100
A physical quantity that has magnitude and direction. 

Vector

100

c^2= a^2+b^2 

Pythagorean theorem

100

The shape of a projectile is characterized as this

Parabola

100

This component remains constant throughout the pathway. 

Horizontal Velocity

100

A vector with a magnitude of 25m/s and an angle of 26 degrees has this horizontal velocity/component. 

22.5 degrees

200

A physical quantity that has magnitude, but no direction. 

Scalar 

200

Sine  equals ____ over____

Opposite/hypotenuse

200

Mathematically, the shape of a parabola signifies this particular type of function. 

Quadratic

200

This component is changing across the pathway of a projectile. 

Vertical Velocity

200

A vector with a magnitude of 25m/s and an angle of 26 degrees has this vertical velocity/component.

11 degrees

300

A vector that represents the sum of two or more vectors

Resultant

300

Cosine  equals _____ over_____

Adjacent/Hypotneuse

300
True or False: Dropping an object would take less time to hit the ground while a projected object would take longer. 

False: Both will land at the same time. 

300

To find the horizontal component, you use this trigonometric function. 

Cosine

300

A velocity vector of 45 m/s launched at an angle of 90 degrees has a horizontal velocity/component of this. 

0

400

the motion than an object exhibits when thrown, launched, or otherwise projected near the surface of Earth.

Projectile Motion
400

Tangent  equals _____ over_____

Opposite/Adjacent

400

A ball bouncing across a room would be an example of this type of motion. 

Parabolic

400

To determine the vertical component of a projectile, you use this trigonometric function. 

Sine

400

A velocity vector of 45 m/s launched at an angle of 90 degrees has a vertical velocity/component of this.

45

500

The projections of a vector along the axes of a coordinate system. 

Components of a vector

500
Determining the angle of a triangle uses these special functions. 

Inverse Trigonometric functions 

sin-1

cos-1

tan-1

500

Dropping a ball out of a moving car takes longer to reach the ground compared to one that is dropped from the same height and at rest. 

False. 

500

The vertical velocity is highly affected by this force that is always directed downward. 

Gravity

500

A golfer who drives her golf ball from the tee down the fairway in a high arcing shot. when the ball is at the highest point of its flight: 

a. the x-velocity is zero and y-velocity is zero

b. the x-velocity is non-zero, but the y-velocity is 0. 

B. the x-velocity is non-zero, but the y-velocity is 0.