Circular Motion and SHM Facts Review

An object moving at constant speed v in a circle of radius r has an acceleration of magnitude ___, directed toward the center of the circle.

Answer explanation

An object moving at constant speed v in a circle of radius r has an acceleration of magnitude v2/r, directed toward the center of the circle.

Tags

NGSS.HS-PS2-1

The ____of an object in circular motion is directed perpendicular to the radius.

• centripetal force

• net force

• acceleration

• velocity

Answer explanation

The velocity of an object in circular motion is directed perpendicular to the radius.

The ___traveled in a circle is equal to the circumference of the circle 2𝛑r.

• time

• speed

• distance

• acceleration

Answer explanation

The distance traveled in a circle is equal to the circumference of the circle 2𝛑r.

The ___of an object in circular motion is distance traveled (___) divided by the period of time (T).

• speed; 2𝛑r

• acceleration; 2𝛑r

Answer explanation

The speed of an object in circular motion is distance traveled (2𝛑r) divided by the period of time (T).

The net force on an object in circular motion is the ___ forces minus the ___ forces (the positive direction is in).

• out; in

• in; out

• up; down

• down; up

Answer explanation

The net force on an object in circular motion is the in forces minus the out forces (the positive direction is in).

Tags

NGSS.HS-PS2-1

An object in simple harmonic motion makes a position-time graph in the shape of a ___ function.

Answer explanation

An object in simple harmonic motion makes a position-time graph in the shape of a sine function.

An object in simple harmonic motion experiences a net force whose

magnitude ___a linear function of distance from the equilibrium position

• increases

• decreases

• remains constant

• is independent of

Answer explanation

An object in simple harmonic motion experiences a net force whose

magnitude increases a linear function of distance from the equilibrium position

An object in simple harmonic motion experiences a net force whose

direction always points toward the ___position

Answer explanation

An object in simple harmonic motion experiences a net force whose direction always points toward the equilibrium position

The maximum distance from the equilibrium position reached by an object in simple harmonic motion

• Amplitude (A)

• Period (T)

• Frequency (f)

Answer explanation

Amplitude (A): The maximum distance from the equilibrium position reached by an object in simple harmonic motion

The time for an object to complete one entire vibration.

• Amplitude (A)

• Period (T)

• Frequency (f)

Answer explanation

Period (T): The time for an object to complete one entire vibration.

Tags

NGSS.HS-PS4-1