Rotational Kinematics Flashcards

Rotational Kinematics Flashcards

Card 1
Q: What is angular velocity (omega)?
A: How fast something is spinning (units: radians per second)

Card 2
Q: What is angular acceleration (alpha)?
A: How fast the spin rate is changing (units: radians per second squared)

Card 3
Q: What is angular displacement (theta)?
A: The amount of rotation (units: radians)

Card 4
Q: What is the rotational version of velocity formula?
A: omega final = omega initial + alpha × time

Card 5
Q: What is the rotational displacement formula?
A: theta = (omega initial × time) + (1/2 × alpha × time squared)

Card 6
Q: What is the no-time equation?
A: omega final squared = omega initial squared + 2 × alpha × theta

Card 7
Q: When should you use the no-time equation?
A: When time is NOT given in the problem

Card 8
Q: How do you convert revolutions to radians?
A: Multiply by 2 × pi

Card 9
Q: How do you convert RPM to radians per second?
A: Multiply by (2 × pi ÷ 60)

Card 10
Q: What is the linear velocity formula?
A: velocity = radius × angular velocity

Card 11
Q: What is the linear acceleration formula?
A: acceleration = radius × angular acceleration

Card 12
Q: What happens to velocity if radius increases?
A: Velocity increases

Card 13
Q: What does it mean if alpha is zero?
A: The object is spinning at a constant speed

Card 14
Q: What does it mean if omega is zero?
A: The object is not spinning

Card 15
Q: What are the units of angular velocity?
A: radians per second

Card 16
Q: What are the units of angular acceleration?
A: radians per second squared

Card 17
Q: What are the units of angular displacement?
A: radians

Card 18
Q: If something starts from rest, what is omega initial?
A: zero

Card 19
Q: If something stops spinning, what is omega final?
A: zero

Card 20
Q: What is the key difference between linear and rotational motion?
A: Linear uses straight-line variables, rotational uses angles and spin