All Flashcards
What is centripetal acceleration?
Acceleration that keeps an object moving in a circle, directed towards the center.
Define tangential acceleration.
The rate of change of an object's speed, acting tangent to the circular path.
What is the period (T) in circular motion?
The time it takes for one complete revolution or cycle, measured in seconds.
What is frequency (f) in circular motion?
The number of revolutions per second, measured in Hertz (Hz).
Define uniform circular motion.
Motion of an object moving at a constant speed in a circle.
How do you calculate the magnitude of centripetal acceleration?
Use the formula: , where v is tangential speed and r is the radius.
How do you find the minimum speed required to stay on the track at the top of a vertical loop?
Use the formula: , where g is the acceleration due to gravity and r is the radius of the loop.
How do you calculate the period (T) using speed and radius?
Use the formula: , where r is the radius and v is the speed.
How do you calculate the net acceleration in circular motion?
Find the vector sum of centripetal and tangential accelerations. Remember they are perpendicular.
How do you calculate the relationship between period and frequency?
Use the formula:
What is the effect of centripetal force?
It causes centripetal acceleration, which changes the direction of an object's velocity, keeping it in circular motion.
What happens if the string is cut in a conical pendulum?
The block moves in a straight line tangent to the circle at a constant speed.
What happens to the block's motion if the turntable is not frictionless after the string is cut?
Friction will act opposite to the direction of motion, the block will slow down and spiral outwards.