AP Physics C: Circular Motion Quiz

A 0.5 kg object is moving in a circle of radius 2 meters with a speed of 3 m/s. Calculate the centripetal force acting on the object.

• 2.25 N

• 3.75 N

• 4.5 N

• 6.75 N

Tags

NGSS.HS-PS2-1

Which of the following statements is true about uniform circular motion?

• The speed of the object is constantly changing.

• The velocity of the object is constant.

• The acceleration of the object is directed towards the center of the circle.

• The object experiences no net force.

A 1500 kg car is taking a turn on a flat road with a radius of 100 meters at a speed of 25 m/s. What is the minimum coefficient of friction required between the tires and the road to prevent slipping?

• 0.32

• 0.45

• 0.64

• 0.75

If the radius of a circular path is doubled while keeping the speed constant, how does the centripetal force change?

• It remains the same.

• It doubles.

• It halves.

• It quadruples.

A cyclist is moving in a circular track of radius 10 meters at a speed of 5 m/s. What is the centripetal acceleration of the cyclist?

• 2.5 m/s²

• 5 m/s²

• 10 m/s²

• 25 m/s²

A 2 kg object is attached to a string and is moving in a horizontal circle of radius 1.5 meters with a speed of 4 m/s. What is the tension in the string?

• 10.67 N

• 16 N

• 21.33 N

• 32 N

Tags

NGSS.HS-PS2-1

A car is moving around a circular track with a constant speed. Which of the following is true about the car's motion?

• The car has zero acceleration.

• The car's velocity is constant.

• The car experiences a net force directed towards the center of the circle.

• The car's speed is increasing.

Tags

NGSS.HS-PS2-1

A 500 g ball is swung in a horizontal circle of radius 0.75 meters at a speed of 6 m/s. Calculate the centripetal force acting on the ball.

• 24 N

• 36 N

• 48 N

• 60 N

Tags

NGSS.HS-PS2-1

If the speed of an object in uniform circular motion is tripled, how does the centripetal force change?

• It remains the same.

• It triples.

• It increases nine times.

• It halves.

Which of the following is necessary for an object to maintain uniform circular motion?

• Constant speed

• Constant velocity

• Zero net force

• Constant acceleration

Tags

NGSS.HS-PS2-1