Motion
Projectile
Vectors
Graphs
Acceleration
100
Change in Velocity over time
acceleration
100
In projectile motion what is held constant? (Two answers)
Velocity in the horizontal direction and Acceleration in the vertical direction
100
What trig function do we use for the x-direction?
cosine
100
The slope of: Position Vs Time graph equals
Velocity
100
-9.8 m/s2
What is the acceleration of gravity on Earth?
200
An object moves 4 meters north and then 3 meters East. What is the objects Displacement
5m @ NE
200
Projectile motion: what is always zero in the horizontal direction.
acceleration
200
What trig function do we use for the y-direction?
Sine
200
The area under the curve for Velocity vs Time graph equals?
Position
200
Downward
What is the direction of the acceleration due to gravity or acceleration in the vertical direction?
300
If an object has zero acceleration. What might the objects motion be?
Not moving or moving with a constant velocity
300
At what angle on the ground should you shoot a projectile to get the furthest range?
45 degrees
300
How do I find the magnitude of this vector?
A = 3x^ + 4y^
a2+b2=c2
300
The slope of: Velocity Vs Time graph equals
acceleration
300
Acceleration is zero means
not moving or constant velocity
400
If an object has negative velocity and negative acceleration, is the object moving with constant velocity, slowing down or speeding up
speeding up
400
When shooting a ball off a cliff horizontally, which initial velocity is zero?
y - velocity
400
what trig function do I use to find an angle?
tan-1(y/x)
400
What is the cars acceleration equal to on the top flat area of the graph
zero
400
Objects that are accelerating are either changing direction or speeding up or slowing down. When are they not accelerating?
moving with constant velocity or not moving
500
An object is thrown straight up at +10 m/s what is the objects velocity when you catch it?
- 10 m/s
500
If a ball is being dropped and another ball is being thrown horizontally at the same height: What is the same for both of these?
time
500
Where do you measure angles from when dealing with vectors?
positive x-axis
500
Does this graph ever show the motion of a negative acceleration?
NO
500
One object is thrown horizontally off a cliff, the other is thrown vertically upward are the acceleration the same?
yes , 9.81 m/s^2
600
What equation should you use to find the time in a projectile motion problem?
y=y0+vyo*t+(1/2)*ay*t2 ?
600
The only equation that is to be used in the horizontal direction for projectiles?
What is x = Vxt ?
600
What is a vector and scalar
Vector is magnitude with direction, and a scalar is just the magnitude
600
For which segment does the cart move the greatest distance?
What is AB?
600
Where is the acceleration greatest?
CD