Newton's Laws and Momentum Concepts

What is the correct formula for momentum?

• p = m/v

• p = mv

• p = m + v

• p = m - v

What are the standard SI units for momentum?

• Newtons (N)

• Joules (J)

• Kilogram-meters per second (kg·m/s)

• Watts (W)

What is the special name given to the units of momentum (kilogram-meters per second)?

• Newton

• Joule

• Watt

• There is no special name.

Which equation represents Newton's Second Law in terms of acceleration?

• ΣF = ma

• ΣF = dp/dt

• E = mc²

• F = G(m1m2)/r²

How is Newton's Second Law expressed in terms of momentum?

• ΣF = mv

• ΣF = d(mv)/dt

• ΣF = m/v

• ΣF = m + v

In what year were Newton's original three laws of motion first published?

• 1776

• 1687

• 1859

• 1905

In what language was Sir Isaac Newton's "The Mathematical Principles of Natural Philosophy" originally published?

• English

• Greek

• Latin

• French

The equation ΣF = ma is derived from ΣF = d(mv)/dt under what assumption?

• Velocity is constant.

• Acceleration is constant.

• Mass is constant.

• Force is constant.

How is Newton's Second Law expressed when the mass of an object or system can change?

• ΣF = ma

• ΣF = dp/dt

• ΣF = m(dv/dt) + v(dm/dt)

• ΣF = v(dm/dt)

Under what condition is the linear momentum of a system conserved?

• When the net force acting on the system is greater than zero.

• When the mass of the system changes.

• When all forces acting on the system are internal and the net external force is zero.

• When the velocity of the system is constant.