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Impulse and Linear Momentum Definitions

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Questions and Answers

What is the equation for impulse?

$J = \frac{F}{\Delta t}$
$J = F + \Delta t$
$J = F\Delta t$ (correct)
$J = F - \Delta t$

What is the SI unit of linear momentum?

Kilogram-meter/second (kg·m/s) (correct)
Newton-second (N·s)
Kilogram-meter (kg·m)
Newton (N)

What is the equation for the impulse-momentum theorem?

$(\sum F)\Delta t = m(v_f - v_o)$ (correct)
$(\sum F)\Delta t = \frac{m}{v_f - v_o}$
$(\sum F)(v_f + v_o) = m\Delta t$
$(\sum F)(v_f - v_o) = m\Delta t$

What does the linear momentum of an object depend on?

<p>Velocity and mass (A)</p> Signup and view all the answers

What is the direction of impulse?

<p>Same as the average force (B)</p> Signup and view all the answers

Flashcards

Impulse Equation

Impulse equals the force applied multiplied by the time interval over which it acts: J = FΔt.

SI Unit of Linear Momentum

The SI unit for linear momentum is kilogram-meter per second.

Impulse-Momentum Theorem

The impulse-momentum theorem states that the impulse of the net force on an object is equal to the change in its momentum: (∑F)Δt = m(vf - vo).

Factors of Linear Momentum

An object's linear momentum depends on its mass and velocity.

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Direction of Impulse

Impulse direction is the same as the average force direction.