Centripetal Force
Basics
Basics
Centripetal force is the net force causing the centripetal ________ of an object in circular motion.
What is acceleration?
The formula for centripetal acceleration is ________.
What is ac = Vt2 / r?
1 kg*m/s2 = ______________
What is 1 Newton?
What type of force can provide centripetal force in the case of a car turning on a flat road?
What is friction?
This force caused Jack and Jill to tumble down the hill.
What is gravity?
Centripetal force is necessary for an object to follow a ________ path.
What is circular?
A car is moving around a circular track at a constant speed. Explain if it is accelerating.
What is yes, accelerating because changing direction?
Fn is _____________.
What is Normal Force?
A ball is twirled in a horizontal circle on a string. At the instant the string is cut, the ball will travel in this direction.
What is tangent to the circle?
This is constantly changing when traveling in a circle even if the speed is not
What is velocity?
Centripetal force acts in what direction?
What is towards the center of a circle?
Centripetal Acceleration will always be pointing towards which diretion?
What is towards the center of the circle?
At what point in a loop de loop does a passenger feel closest to weightlessness?
What is at the top of the circle?
What is the Tension of a 0.8 kg ball traveling at 3 m/s at the top of a 0.4 meter circle?
What is 10.16 Newtons?
If an astronaut weighs 900 N on Earth, what is her weight at a distance 3x further away?
What is 100 Newtons? What is 6.67 × 10-11 N⋅m2/kg2?
Tension into the circle, Fg straight down
A student swings a ball on a string in a horizontal circle. If the ball's speed is doubled while the radius increases by a factor of 4, the centripetal acceleration will _____________.
What is stay the same (ac = Vt2/r)?
What does a passenger feel at the bottom of an loop de loop of a Roller Coaster?
What is feels heavier or being pushed down in your seat
A ball on a string rotates horizontally. What is the name of the force allowing to move the ball in a circle?
What is Tension? or What is Centripetal Force?
This force enables roller coasters to travel through loops
What is Normal Force?
If a circular road was banked, rather than flat horizontal, how would the maximum safe velocity change?
What is the banked road decreases Fn, decreases Ff, decreases Fc, decreases velocity
What is 5.46 m/s2?
The Normal Force acting on a 400 kg Roller Coaster traveling 15 m/s at the bottom of a 20 meter loop is _____________.
What is 8420 Newtons?
A 1000-kg car takes a curve. If the speed doubles, what happens to the required frictional force?
It quadruples
The gravitational constant G is approximately equal to ________.
What is 6.67 × 10-11 N⋅m2/kg2?