Cuestionario sobre MCU

What does Uniform Circular Motion describe?

• Motion in a straight line with variable speed

• Motion in a circle with constant speed

• Motion in a spiral with variable acceleration

• Motion in a circle with constant acceleration

What is the period in Uniform Circular Motion?

• The time it takes to complete one full turn

• The total distance traveled in one turn

• The speed of the moving object

• The centripetal force applied

Frequency is defined as:

• The distance traveled per unit of time

• The number of turns per second

• The time to complete one turn

• The centripetal acceleration

If the period of an object is 5 seconds, what is its frequency?

• 0.2 Hz

• 5 Hz

• 0.5 Hz

• 2 Hz

What is the unit of angular velocity?

• m/s

• rad/s

• Hz

• m/s²

Tangential velocity depends on:

• Frequency only

• Angular velocity and radius

• Centripetal acceleration only

• Mass of the moving object

If an object completes 10 turns in 20 seconds, what is its frequency?

• 0.5 Hz

• 2 Hz

• 5 Hz

• 10 Hz

In Uniform Circular Motion, centripetal acceleration always points towards:

• The direction of tangential velocity

• The opposite direction of tangential velocity

• The center of the circle

• Outside the circle

If the radius increases and angular velocity remains constant, what happens to tangential velocity?

• Increases

• Decreases

• Remains constant

• Becomes zero

Tangential velocity is:

• Perpendicular to angular velocity

• Parallel to centripetal acceleration

• Perpendicular to the radius

• Parallel to the radius