chp 2 mechanical equilibruim quizizz review

A force is needed to change the state of motion of an object.

• True

• False

Tags

NGSS.MS-PS2-2

Net force is the combination of all forces acting on an object.

• True

• False

Tags

NGSS.MS-PS2-2

A vector is an arrow that represents only the magnitude of a quantity.

• True

• False

If an object is sliding on ice, it will continue sliding until a force slows it down.

• True

• False

Tags

NGSS.MS-PS2-2

Time, area, and volume are vector quantities.

• True

• False

An object can be in equilibrium whether it is at rest or moving steadily at constant speed in a straight line.

• True

• False

A scalar quantity has both magnitude and direction, whereas a vector quantity is described by only its direction.

• True

• False

An airplane in an acrobatic loop-the-loop maneuver is in dynamic equilibrium if the speed is constant.

• True

• False

Tags

NGSS.MS-PS3-1

Nellie Newton can hang suspended from the middle of two ends of a rope in such a way that the tension in the rope can greatly exceed her weight.

• True

• False

Tags

NGSS.HS-PS2-1

If a desk is pushed at a constant speed across a horizontal floor, the force of friction must be equal in magnitude and opposite in direction to the pushing force on the desk.

• True

• False

Tags

NGSS.HS-PS2-1