Rotational Equilibrium

Distinguish between stable and unstable rotational equilibrium.

• Stable equilibrium occurs when an object returns to its original position after being slightly disturbed, while unstable equilibrium occurs when an object moves further away from its original position after being disturbed.

• Stable equilibrium occurs when an object moves further away from its original position after being slightly disturbed, while unstable equilibrium occurs when an object returns to its original position after being disturbed.

• Stable equilibrium and unstable equilibrium both occur when an object remains in its original position after being disturbed.

• Stable equilibrium occurs when an object remains in its original position after being disturbed, while unstable equilibrium occurs when an object moves back to its original position after being disturbed.

What does an object do around an axis?

• Rotate

• Translate

• Vibrate

• Expand

What happens to the speed of a part of an object as its distance from the axis increases?

• The speed decreases.

• The speed remains constant.

• The speed increases.

• The speed becomes zero.

Where is the center of gravity located for a symmetrical object?

• At the top of the object

• At the bottom of the object

• At the geometrical center

• At the side of the object

If the crate is to remain stationary, what amount of force must be applied for "z"?

• 800 N

• 1200 N

• 2000 N

• 2400 N

Tags

NGSS.MS-PS2-2

A low center of gravity and a wide base of support contribute toward ________ stability.

• rotational

• linear

• dynamic

• translational

What is the definition of torque and lever arm?

• Torque is the force that causes an object to rotate, and the lever arm is the distance from the pivot point to the point where the force is applied.

• Torque is the speed at which an object rotates, and the lever arm is the length of the object.

• Torque is the mass of an object, and the lever arm is the width of the object.

• Torque is the energy required to move an object, and the lever arm is the height of the object.

What is the property of matter that resists changes in the speed of rotation and axis of rotation?

• Rotational Inertia

• Gravitational Force

• Electromagnetic Force

• Thermal Conductivity

Which of the following is a fact about Torque?

• It changes an object's rotational motion.

• It is a type of energy.

• It is a form of light.

• It is a chemical reaction.

Fill in the blank: Torque is calculated as the product of the perpendicular force and the ________ arm.

• lever

• moment

• force

• distance