Exploring Circular Motion Concepts

What is uniform circular motion?

• Uniform circular motion is the motion of an object moving in a circle at a constant speed.

• Motion in a straight line at varying speeds.

• An object accelerating in a circular path.

• Movement of an object in a spiral path.

How is centripetal acceleration calculated?

• a_c = r / v^2

• a_c = v^2 / r

• a_c = v + r

• a_c = v * r

What role does centripetal force play in circular motion?

• Centripetal force is only needed for linear motion.

• Centripetal force is essential for maintaining circular motion by acting towards the center of the circle.

• Centripetal force pushes objects away from the center of the circle.

• Centripetal force acts in the opposite direction of motion.

Give an example of uniform circular motion in everyday life.

• A plane flying in a straight path at a constant altitude.

• A car driving around a circular track at a constant speed.

• A bicycle moving in a straight line at a constant speed.

• A person walking in a zigzag pattern across a park.

What is the formula for centripetal force?

• F = m * a

• F = (m * v^2) / r

• F = (m * r) / v

• F = m * g

How does mass affect centripetal force in circular motion?

• Mass directly affects centripetal force; greater mass requires greater centripetal force for circular motion.

• Lesser mass requires more centripetal force.

• Mass has no effect on centripetal force.

• Centripetal force decreases with greater mass.

Describe an application of circular motion in amusement park rides.

• The Ferris wheel is an application of circular motion in amusement park rides.

• The carousel rotates around a fixed point.

• The bumper cars operate in a circular path.

• The roller coaster uses linear motion.

What happens to the centripetal force if the speed of an object in circular motion increases?

• The centripetal force remains constant.

• The centripetal force decreases.

• The centripetal force increases.

• The centripetal force becomes zero.

Explain how satellites utilize circular motion principles.

• Satellites orbit the Earth by balancing gravitational pull and inertia, utilizing circular motion principles.

• Satellites rely solely on solar power for their motion.

• Satellites move in straight lines due to inertia.

• Satellites are propelled by engines to maintain their orbit.

What is the difference between uniform and non-uniform circular motion?

• Uniform circular motion has constant speed; non-uniform circular motion has varying speed.

• Uniform circular motion is faster than non-uniform circular motion.

• Uniform circular motion occurs in a straight line; non-uniform circular motion occurs in a circle.

• Both types of motion have the same speed but differ in direction.