Chapter 3- Vector Quantities and Projectile Motion Flashcards
What is constant velocity?
When an object is traveling the same distance every second
What does moving at a constant velocity due to position, displacement, speed or velocity, and time?
Position: Changes at the same rate every second
Displacement: changes constantly at the same rate
Velocity: stays the same the whole time
Time: Every second the object is in a different position
What equation do you use for Position vs Time Graphs?
Xf=Xi+V(△T)
What equation do you use for Velocity vs Time Graphs?
Vf=Vi+A(△T)
What is acceleration?
The rate at which velocity is changing
How does acceleration affect position, velocity, direction, and time?
Position: Changes at a non constant rate since the speed of the object is changing
Velocity: Is constantly changing (at a constant rate sometimes)
Direction: When direction changes your velocities direction changes which is an acceleration
Time: Every second the object is in a different position
What is constant acceleration?
A change in an objects velocity by the same amount every second
When does an object have a velocity of 0 and also have an acceleration?
When the object is stopping
What is free fall?
An object moving downward, upward, or horizontally experiences Earth’s gravity
What is a right triangle?
A triangle that has two sides that are perpendicular and make a 90 degree angle. This allows us to use pythagorean theorem and Sine, Cosine, Tangent
What are Sine, Cosine, and Tangent?
Sine: Opposite over Hypotenuse
Cosine: Adjacent over Hypotenuse
Tangent: Opposite over Adjacent
What is a vector?
A quantity with both magnitude and direction
How are vectors shown?
A line pointing at a certain direction on a X,Y coordinate plane with the angle shown
How do you combine vector?
You add them
What is a vector component and how are they calculated?
They are the amount of horizontal motion and vertical motion that make up a vector quantity. You find them by using sine and cosine
