Math Physics Pt.4

The tendency of any object to remain at rest or to continue in motion is called

• equilibrium

• mass

• inertia

• static

Any influence capable of producing change in the motion of an object is called

• force

• velocity

• acceleration

• vector

Which of the following is NOT a unit of force?

• pound

• erg

• dyne

• newton

• joule

• slug

• dyne

• newton

The product of force and displacement is called

• energy

• power

• work

• momentum

Which of the following is NOT a unit or work?

• joules

• kilowatt-hour

• erg

• slug

What is the SI unit of work?

• joule

• kg-m

• n-cm

• foot-pound

The work done by the external force on particles is equal to the ___ of the particle.

• change in momentum

• impulse

• change in kinetic energy

• change in potential energy

The work done by all forces except the gravitational force is always equal to the ___ of the system.

• total potential energy

• total impulse

• total mechanical energy

• total momentum

There is no work done when

• the force is parallel to the displacement

• the force is perpendicular to the displacement

• there is an angle between the force and the displacement

• all of the above