Warm-up 2E

Front

What is the formula to calculate frequency from rotations per minute (rpm)?

Back

Frequency (Hz) = Rotations per minute (rpm) / 60

Front

How do you convert frequency in Hz to angular velocity in radians per second?

Back

Angular velocity (rad/s) = Frequency (Hz) × 2π

Front

What is the relationship between tangential velocity and radius in circular motion?

Back

Tangential velocity (v) = Radius (r) × Angular velocity (ω) where ω is in rad/s.

Front

What is centripetal acceleration and how is it calculated?

Back

Centripetal acceleration (a_c) = v² / r, where v is tangential velocity and r is the radius.

Front

How do you calculate the tangential velocity of an object in circular motion?

Back

Tangential velocity (v) = 2πr / T, where r is the radius and T is the period of rotation.

Front

What is the definition of angular velocity?

Back

Angular velocity (ω) is the rate of change of angular displacement and is measured in radians per second.

Front

How is centripetal acceleration related to frequency?

Back

Centripetal acceleration (a_c) can be expressed as a_c = (2πf)²r, where f is frequency and r is the radius.

Front

What is the unit of frequency?

Back

The unit of frequency is Hertz (Hz), which is equivalent to one cycle per second.

Front

How do you find the period of rotation from frequency?

Back

Period (T) = 1 / Frequency (f) in seconds.

Front

What is the significance of the radius in circular motion?

Back

The radius affects both the tangential velocity and centripetal acceleration of an object in circular motion.