Kinematics in Two Dimensions
What is the term for motion that involves horizontal and vertical components?
What is two-dimensional motion?
What method involves drawing vectors on a graph and adding them head-to-tail?
What is the graphical method?
Projectile motion is the motion of an object through the air subject only to the acceleration of ________.
What is gravity?
What theorem is used to determine the magnitude of the resultant vector?
What is the Pythagorean theorem?
Velocities in two dimensions are added using the same techniques as ________.
What are vectors?
In two-dimensional motion, horizontal and vertical components are ________ of each other.
What is independent?
The sum of two or more vectors is called the ________.
What is the resultant?
What shape is the path of a projectile?
What is a parabola?
To add vectors analytically, first determine their ________ and ________ components.
What are horizontal and vertical?
The velocity of an object as observed from a particular reference frame is called ________.
What is relative velocity?
The shortest path between two points in two dimensions can be represented by a ________.
What is a vector?
If vector B is subtracted from vector A, what is added to vector A?
What is the opposite of vector B?
The horizontal motion of a projectile affects its vertical motion. True or False?
What is False?
The horizontal component of vector A can be found using which equation?
What is Ax = A * cos(θ)?
Relative velocity can vary dramatically with the ________ frame.
What is reference?
If a person walks 9 blocks east and 5 blocks north, what is their straight-line distance from the starting point?
What is 10.3 blocks?
The graphical method of vector addition is commutative. True or False?
What is True?
The initial horizontal velocity of a projectile is found using which trigonometric function?
What is cosine?
After finding the components, add them to find the components of the ________ vector.
What is resultant?
Classical relativity applies to situations where speed is less than about ________ of the speed of light.
What is 1%?
The components of a vector can be described using ________ and ________.
What are magnitude and direction?
When a vector is multiplied by a scalar, the product's direction depends on whether the scalar is ________.
What is positive or negative?
What is the formula for the range of a projectile on level ground?
What is R = v0^2 * sin(2θ) / g?
To find the direction of the resultant vector, use the ________ identity.
What is trigonometric?
The velocity of a boat relative to the shore can be found by adding the velocity of the boat relative to the water and the velocity of the water relative to the ________.
What is shore?