UMI'S QUIZ

the number of complete revolutions made by an object in 1s is called

• frequency

• angular velocity

• angular acceleration

• angular displacement

he liner velocity of an object and angular velocity are related by

What is the Unit for Torque

• Nm
• N
• W
• J

The easiest way to open a heavy door  is by applying the force

• Near the hinges
• In the middle of the door
• At the edge of the door far from the hinges
• At the top of the door

The number of complete revolutions per second is:

• frequency

• period

• torque

• rotational inertia

The moment of inertia:

• is synonymous with mass
• does not depend on where the mass is located
• resistance to a change in rotational inertia
• more resistance to change = less inertia

The time required for one complete revolution is:

• torque

• frequency

• period

• rotational kinetic energy

Condition for maximum torque is

• undefined=180 degree

• undefined= 0 degree

• not defined

As an object rotates, the change in the angle is called _______ ____ and represented by ________

• angular displacement AND s

• angular displacement AND θ

• rotational displacement AND θ

• rotational displacement AND s

The angular velocity is represented by the Greek letter ____.

• ω

• θ

• α

• σ