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AP Physics 1 > Torque > Flashcards

Flashcards in Torque Deck (12):
1

What causes a rotation?

When a force is not directed through the center of mass of an object

2

What is Torque?

An applied force that produces a rotation; product of a force and perpendicular distance

3

How can two forces prevent rotation without being directed toward the center of mass?

If the forces are parallel and of suitable magnitudes

4

What is a Fulcrum?

Fixed pivot point; where something rotates about/around

5

What is an example of a fulcrum?

The axis/middle of a seesaw

6

What is best torque equal to in static equilibrium?

Zero; Σclockwise torque= Σcounterclockwise torque

7

What is Moment Arm Distance or Lever Arm?

The perpendicular distance from the axis of rotation to the line of action (pivot point/center of mass to force)

8

What is the equation of Torque?

τ=Fd (if F=0, τ=0)
Units= N*m

9

Torque is a ________ quantity.

Vector; clockwise= negative, counterclockwise= positive

10

In order for there to be torque, force and distance must be _____________.

Perpendicular

11

What is the equation for a balanced torque between two forces?

F1d1=F2d2

12

If F1 > F2, what is the relationship between their distances from the pivot?

d1