Vector vs. Scalar
Velocity, displacement, and acceleration have this in common
What is a vector (direction + magnitude)?
An object moves from rest to a velocity of v m/s in a span of t seconds. What kinematic equation do I use to calculate acceleration a?
What is v=vo + at?
Newton's First Law
What is a net force not equal to zero that must act on an object in order for the object to accelerate?
(object in motion stays in motion/object at rest stays at rest; you need a net force to act on an object for it to change velocities)
The slope of a position versus time graph
What is velocity?
When an object is in free fall, what forces are acting on it?
What is gravitational force?
When I want to find the displacement between two vectors, I have to...
What is calculate the magnitude/use pythagorean theorem?
If I wanted to find net displacement of an object during free fall given final velocity and initial velocity, which kinematic equation would I use?
What is v2=v02+2x?
An object of mass 560 kg moves downhill at an acceleration of 80 m/s2. What equation would we use to find force?
What is Newton's Second Law (F=ma)?
How would we find velocity on an acceleration versus time graph?
What is finding the area under the curve/integration?
When velocity and acceleration are in opposite directions, the object is said to be...
What is speeding up?
Described as the diffference of displacement over time as time approaches 0
What is instantaneous velocity?
With what speed must a ball be thrown from ground level to rise to a maximum height of 25 m? Ignore air resistance.
What is 22 m/s?
If a force is exerted onto an object with a magnitude of 150 N at an angle of 30 degrees counterclockwise from the x-axis, what are the force's x-components and y-components?
What is the x-component is 150cos30 and the y-component is 150sin30?
How can we graph the max height on a graph using a position function?
What is taking the derivative of the position function and setting it equal to 0? (finding critical points)
If y is directly proportional to 1/x2, what would happen if we increase the x by a factor of 2?
A train travels 60 km W then 60 km N. In what quadrant is the resultant of the train's movement and at what angle does the train counterclockwise from the x-axis?
What is the the second quadrant and what is the angle is 135?
If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed and his hang time (total time to move upwards to the peak and then return to the ground)?
What is vi = 5.03 m/s and hang time = 1.03 s?
Refer to Graph 1: A particle is initially at rest at t = 0 and then moves along an x axis. A graph of the acceleration versus time is shown. What is the velocity of the particle at t = 5 s?
What is 10.5 m/s?
A 3.0-kg particle is accelerated from rest to a speed of 24 m/s in 3.2 s. Assume acceleration is constant. What is the acceleration of the particle during the 3.2-s time interval?
What is 7.5 m/s2?
A baseball player hits a homerun and ends up at home base. A baseball "diamond" is a square, each side measuring 27.4m. What is the magnitude of the player's displacement?
What is 0 m?
A baseball is popped straight up into the air and has a hang-time of 6.25 s. Determine the height to which the ball rises before it reaches its peak. (Hint: the time to rise to the peak is one-half the total hang-time.)
What is d = 48.0 m?
A 60-kg man and a 40-kg crate are both at rest on a horizontal, frictionless floor. The man then exerts a horizontal force on the crate. Eventually the man stops pushing. After he stops pushing, his speed is....
What is less than that of the crate, but not zero?
What is the instantaneous velocity at t=7.5s?
What is -1.6 m/s m/s?
A displacement vector 𝐴⃗ has a magnitude of 30 m and is directed 30 south of east. Let the +y direction be northward and the +x direction be eastward. What is the y component of vector 𝐴⃗? Include a plus or minus sign to indicate direction.
What is -15m?