OnRamps DTP 2-3-21

A wrench is used to tighten a nut. A 15N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench?

• 7.5 Nm
• 1.5 Nm
• 750 Nm
• 150 Nm

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

What is the Unit for Torque

• Nm
• N
• W
• J

Torque is the product of a force exerted on an object times the lever arm.

• True 
• False

What is the direction of a centripetal force?

• In the same direction that the object is moving
• Inward and perpendicular to the motion of the object
• Upward and slightly forward
• Outward and perpendicular to the motion of the object

Have you read about the Moment of Inertia in Open Stax Chapter 10.3? The moment of inertia depends not only on the mass of an object, but also the ________________ of mass relative to the axis of rotation.

(Hint: it starts with the letter "d")