uniform circular motion

what is the formula for centripetal force?

• Fc = m^2v/r
• Fc = mv^2r
• Fc = mvr^2
• Fc = (mv^2)/r

What is the unit of centripetal acceleration?

• m/s

• m/s^2

• N

• kg*m/s^2

Which of the following represents the relationship between centripetal force and angular velocity (ω)?

• Fc = mω^2r

• Fc = mω/r

• Fc = mωr^2

• Fc = ω^2/mr

For an object moving in a circular path, what happens to the centripetal force if the radius of the path is doubled and the speed remains the same?

• It is halved

• It remains the same

• It is doubled

• It is quadrupled

What is the direction of centripetal acceleration in uniform circular motion?

• Towards the center of the circle

• Away from the center of the circle

• Tangential to the circle

• None of the above

How does the centripetal force affect the speed of an object in circular motion?

• Increases the speed

• Decreases the speed

• Changes the direction of the object without changing its speed

• None of the above

What happens to the centripetal force if the mass of the object is doubled while keeping the radius and speed constant?

• It is halved

• It remains the same

• It is doubled

• It is quadrupled

What is the effect on centripetal force if the velocity of an object moving in a circular path is doubled?

• It is halved

• It remains the same

• It is doubled

• It is quadrupled

Which of the following factors does not affect the magnitude of centripetal force required for circular motion?

• Mass of the object

• Radius of the circular path

• Speed of the object

• Color of the object

In the context of circular motion, how does increasing the mass of the object affect the centripetal acceleration, assuming speed and radius remain constant?

• Increases the centripetal acceleration

• Decreases the centripetal acceleration

• Does not affect the centripetal acceleration

• Initially increases then decreases the centripetal acceleration