Uniform Circular Motion

A 0.60 kg object moves in a circle with a radius of 1.50 m at a velocity of 3.00 m/s.
What is the centripetal force acting on it? (Round to 2 decimal places) Do not add unit.

Fc= m x v² / r

Mathematical Equivalence

ON

Tags

NGSS.HS-PS2-1

An object of mass 0.25 kg moves in a circle of radius 0.80 m.
If the centripetal force is 2.80 N, what is its velocity? (Round to 2 decimal places) Do not add units.

Fc= m x v² / r

Mathematical Equivalence

OFF

Tags

NGSS.HS-PS2-1

If the speed of an object is tripled, what happens to the centripetal force?

• It doubles

• It triples

• It increases by nine times

• It decreases to 1/3

Tags

NGSS.HS-PS2-1

If the radius of motion is cut in half, what happens to the centripetal force?

• It doubles

• It quadruples

• It halves

• It stays the same

Centripetal force is the _______-seeking force that keeps an object moving in a circular path

If the centripetal force suddenly disappears, the object will move in a ______ line that is tangent to the circle

Which way does the centripetal force always point?

• Outward from the circle

• Tangent to the circle

• Toward the center of the circle

• In the direction of motion

Match the following symbol with its correct unit.

• meters/second

• m

• Netwon

• v

• meter

• r

• kilogram

• Fc

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Which setup shows the correct change in force if the velocity is tripled while mass and radius stay the same?

Fc= m x v² / r

• Fc= (1) x (1)² / (1)

• Fc= (3) x (1)²/ (1)

• Fc= (1) x (3)²/(1)

• Fc = (1) x (1)²/(3)

Tags

NGSS.HS-PS2-1

If the radius is cut in half while mass and velocity stay the same, which equation correctly shows the new force?

Fc= m x v² / r

• Fc= (1) x (1)² / (1)

• Fc= (0.5) x (1)²/ (1)

• Fc= (1) x (0.5)²/(1)

• Fc = (1) x (1)²/(0.5)