Equilibrium

The net force on an object in equilibrium is:

• greater than zero

• zero

• less than zero

• need more specific information to answer

Tags

NGSS.HS-PS2-1

Which one of the following quantities is zero when a uniform rod is supported in the middle?

• mass

• weight

• pressure

• moment

Which of the following are not in a state of equilibrium?

• An object at rest

• An object moving in a straight line at a constant speed

• An object that is speeding up.

Tags

NGSS.HS-PS2-1

What are the types of equilibrium? ?

• Stable ,Instable,Neutral

• Stable,Neutral,imstable

• Stable,Unstable,Neutral

• none

The force from a cable or string is

• normal force

• weight

• tension

• scale

Two equal and oppositely directed forces acting on an object will be in equilibrium

• Only if they act on the same point on the object

• If they are separated by a distance

• When they are balanced by a third force

• when their moments about the same point are equal

The diagram shows a light beam pivoted at one end. What is the effort required to lift the load?

• 50

• 67

• 100

• 200

A decrease in temperature shifts the reaction

• Left (towards reactants)

• Right (towards products)

• Does not affect equilibrium

Tags

NGSS.HS-PS1-5

An increase in carbon dioxide shifts 

• Left (towards reactants)

• Right (towards products)

• Does not affect equilibrium

• Left (towards reactants)

• Right (towards products)

• Does not affect equilibrium

Tags

NGSS.HS-PS1-5