zuai-logo
zuai-logo
  1. AP Calculus
FlashcardFlashcard
Study GuideStudy GuideQuestion BankQuestion Bank

What does the area under a velocity-time graph represent?

Displacement.

Flip to see [answer/question]
Flip to see [answer/question]
Revise later
SpaceTo flip
If confident

All Flashcards

What does the area under a velocity-time graph represent?

Displacement.

What does the slope of a position-time graph represent?

Velocity.

What does the slope of a velocity-time graph represent?

Acceleration.

How can you determine when an object changes direction from a velocity-time graph?

Look for points where the velocity graph crosses the t-axis (changes sign).

How can you estimate the total distance traveled from a velocity-time graph?

Estimate the area between the curve and the t-axis, considering areas below the axis as positive.

What does a horizontal line on a velocity-time graph indicate?

Constant velocity (zero acceleration).

What does a horizontal line on an acceleration-time graph indicate?

Constant acceleration.

How does the concavity of a position-time graph relate to acceleration?

Concave up indicates positive acceleration; concave down indicates negative acceleration.

What does the area under an acceleration-time graph represent?

Change in velocity.

How can you determine the time intervals when an object is speeding up or slowing down from a velocity-time graph?

Speeding up when velocity and acceleration have the same sign (both positive or both negative); slowing down when they have opposite signs.

Formula for velocity given position s(t)s(t)s(t).

v(t)=dsdtv(t) = \frac{ds}{dt}v(t)=dtds​

Formula for acceleration given velocity v(t)v(t)v(t).

a(t)=dvdta(t) = \frac{dv}{dt}a(t)=dtdv​

Formula for displacement.

Δs=sfinal−sinitial\Delta s = s_{final} - s_{initial}Δs=sfinal​−sinitial​

Arc length formula for vector-valued functions.

S=∫ab∣r′(t)∣dtS = \int_a^b |\mathbf{r}'(t)| dtS=∫ab​∣r′(t)∣dt

Arc length formula for parametric functions.

S=∫ab(dxdt)2+(dydt)2dtS = \int_a^b \sqrt{\left( \frac{dx}{dt} \right)^2 + \left( \frac{dy}{dt} \right)^2} dtS=∫ab​(dtdx​)2+(dtdy​)2​dt

How do you find displacement given a velocity vector v(t)\mathbf{v}(t)v(t)?

Δr=∫t1t2v(t)dt\Delta \mathbf{r} = \int_{t_1}^{t_2} \mathbf{v}(t) dtΔr=∫t1​t2​​v(t)dt

How to find the magnitude of a vector ⟨x,y⟩\langle x, y \rangle⟨x,y⟩?

x2+y2\sqrt{x^2 + y^2}x2+y2​

Formula for acceleration given position s(t)s(t)s(t).

a(t)=d2sdt2a(t) = \frac{d^2s}{dt^2}a(t)=dt2d2s​

How do you find the velocity vector v(t)\mathbf{v}(t)v(t) given the position vector r(t)=⟨f(t),g(t)⟩\mathbf{r}(t) = \langle f(t), g(t) \rangler(t)=⟨f(t),g(t)⟩?

v(t)=⟨f′(t),g′(t)⟩\mathbf{v}(t) = \langle f'(t), g'(t) \ranglev(t)=⟨f′(t),g′(t)⟩

How do you find the acceleration vector a(t)\mathbf{a}(t)a(t) given the velocity vector v(t)=⟨f(t),g(t)⟩\mathbf{v}(t) = \langle f(t), g(t) \ranglev(t)=⟨f(t),g(t)⟩?

a(t)=⟨f′(t),g′(t)⟩\mathbf{a}(t) = \langle f'(t), g'(t) \ranglea(t)=⟨f′(t),g′(t)⟩

Displacement vs. Distance Traveled.

Displacement: Change in position | Distance Traveled: Total path length.

Vector-Valued vs. Parametric Functions.

Vector-Valued: r(t)=⟨f(t),g(t)⟩\mathbf{r}(t) = \langle f(t), g(t) \rangler(t)=⟨f(t),g(t)⟩ | Parametric: x(t)=f(t),y(t)=g(t)x(t) = f(t), y(t) = g(t)x(t)=f(t),y(t)=g(t)

Velocity vs. Speed.

Velocity: Vector with magnitude and direction | Speed: Magnitude of velocity (scalar).

Differentiation vs. Integration.

Differentiation: Finds rate of change | Integration: Finds accumulation/area.

Position vs. Velocity.

Position: Location at time t | Velocity: Rate of change of position at time t

Velocity vs. Acceleration.

Velocity: Rate of change of position at time t | Acceleration: Rate of change of velocity at time t

Average Velocity vs. Instantaneous Velocity.

Average Velocity: Displacement / Time | Instantaneous Velocity: Velocity at a specific time

Average Speed vs. Instantaneous Speed.

Average Speed: Total Distance / Time | Instantaneous Speed: Speed at a specific time

Displacement with Vector Valued Functions vs. Parametric Functions

Vector Valued: Integrate the vector | Parametric: Integrate each component separately

Distance Traveled with Vector Valued Functions vs. Parametric Functions

Vector Valued: Integrate the magnitude of the derivative of the position vector | Parametric: Integrate the square root of the sum of the squares of the derivatives of x and y with respect to t