UPDATED ACTUAL Exam Questions and
CORRECT Answers
Object that moves through space acted on only by gravity (and air resistance if applicable) -
CORRECT ANSWER - Projectile
A projectile is any object upon which the only force is... - CORRECT ANSWER - Air
friciton
Near the surface of the earth, the path of a projectile is... - CORRECT ANSWER - Curved
parabolically
Horizontal and vertical components are... - CORRECT ANSWER - Separate
Velocity is always... - CORRECT ANSWER - Constant
The Vertical Component is also known as... - CORRECT ANSWER - Acceleration
Acceleration (or the Vertical Component) is always... - CORRECT ANSWER - Constant
Projectile motion is a combination of these two components - CORRECT ANSWER -
Vertical and Horizontal
When air drag is negligible, does the horizontal component of a horizontally launched projectile
change? - CORRECT ANSWER - No because the object would travel the same horizontal
distance in equal times (no component of gravitational force acting horizontally) and remains
constant.
, When air drag is negligible, does the vertical component of a horizontally launched projectile
change? - CORRECT ANSWER - Yes
With time, vertical positions become... - CORRECT ANSWER - Farther apart
Why does a horizontally launched object always accelerate downward? - CORRECT
ANSWER - Because the force of gravity always acts downward
This is the combination of horizontal and vertical components of motion. - CORRECT
ANSWER - Curvature of Path
When a projectile is fired horizontal from a height, the object moves forward at this kind of
speed - CORRECT ANSWER - Constant
What shape does the path of a projectile that undergoes acceleration only in the vertical
direction, while moving horizontally at a constant speed make? - CORRECT ANSWER -
Parabola
When a projectile is fired horizontally, the vertical component at any point can be found using
this equation - CORRECT ANSWER - The Pythagorean Theorem (diagonal of a rectangle)
Without air resistance, the time for a projectile to reach maximum height is _______ as the time
for it to return to its initial level. - CORRECT ANSWER - the same
The line around or about which rotation or revolution takes place - CORRECT ANSWER -
Axis
Also called spin, this is what an object does when turning around an internal axis - CORRECT
ANSWER - Rotation