Definitions
Free Fall
Components
Projectiles
Satellites
100
This is the symbol used for a vertical distance.
What is d, y, or dy?
100
The acceleration due to gravity near the surface of the Earth.
What is 9.81 m/ss?
100
This is the shape of the path of all projectiles.
What is parabolic?
100
It is what happens to the horizontal or x component of velocity in projectile motion.
What is stays the same?
100
It is our closest natural satellite.
What is the moon?
200
This is the symbol used for the range of a projectile.
What is d, x, or dx?
200
The vertical velocity of a projectile at the moment it is at its maximum height.
What is 0 m/s?
200
It doesn't change, this velocity stays the same.
What is horizontal velocity?
200
It is what happens to the vertical or y component of velocity in projectile motion.
What is acceleration?
200
It is what air resistance does to projectiles.
What is slows them down?
300
This component of velocity is constant throughout the projectile's path.
What is horizontal velocity?
300
The horizontal acceleration of a projectile.
What is 0 m/s2?
300
This is the only force that acts on (a.k.a. accelerates) a projectile.
What is gravity?
300
A projectile is fired at 20 degrees above the horizontal and lands downrange. It is the other angle that would produce this same downrange distance.
What is 70 degrees? (complementary angles)
300
Earth satellites are usually 100km high so that they are above this.
What is the earth's atmosphere?
400
The name for the trajectory (path) a projectile takes.
What is parabola?
400
It is how far an object falls in one second due to the force of gravity.
What is 4.9 m or 5 m?
400
Name for the blue vector v.
What is resultant?
400
A baseball is thrown horizontally off of a cliff with an initial velocity of 80 m/s. A bowling ball is dropped from the same cliff at the same time. This ball hits the ground first.
What is both hit at the same time?
400
A satellite is simply a projectile doing this.
What is free falling around the earth?
500
vx and vy are described as ____________ of the vector v.
what are components?
500
It is how long after being fired from a rifle that a bullet begins to fall.
What is as soon as it leaves the barrel?
500
Names for the vectors vy and vx.
What are components?
500
An arrow is fired with an initial horizontal velocity of 10 m/s. It is shot from a height of 1.2 m. How far downrange will it be 1 second later? If it misses the target, how long will it remain in the air?
What is 10 meters and 0.5 seconds?
500
It is what prevents satellites from falling.
What is nothing?