What is displacement?

Displacement (Δx) is the change in position. It's a vector!

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What is displacement?

Displacement (Δx) is the change in position. It's a vector!

Define velocity.

Velocity (v) is the rate of change of displacement. Also a vector!

What is acceleration?

Acceleration (a) is the rate of change of velocity. It's a vector.

Define work in physics.

Work (W) is the transfer of energy by a force. W=Fdcos(θ)W = Fd\cos(\theta).

What is kinetic energy?

Kinetic Energy (KE) is the energy of motion. KE=12mv2KE = \frac{1}{2}mv^2.

Define impulse.

Impulse (J) is the change in momentum. J=FΔt=ΔpJ = F\Delta t = \Delta p.

What is torque?

Torque (τ\tau) is the rotational analog of force. τ=rFsin(θ)\tau = rF\sin(\theta).

Define centripetal acceleration.

Centripetal acceleration (aca_c) is the acceleration directed towards the center of the circle. ac=v2ra_c = \frac{v^2}{r}

What is gravitational force?

Gravitational Force (FgF_g) is the attractive force between two masses. Fg=Gm1m2r2F_g = G\frac{m_1m_2}{r^2}, where G is the gravitational constant.

Define momentum.

Momentum (p) is the product of mass and velocity. p=mvp = mv. It is a vector quantity.

How do you analyze projectile motion?

Analyze horizontal and vertical motion separately. Horizontal motion: constant velocity (\ax=0\a_x = 0). Vertical motion: constant acceleration due to gravity (\ay=g=9.8m/s2\a_y = -g = -9.8 m/s^2).

How do you solve problems involving inclined planes?

Resolve forces into components parallel and perpendicular to the plane. Fg=mgsin(θ)F_{g\parallel} = mg \sin(\theta), Fg=mgcos(θ)F_{g\perp} = mg \cos(\theta)

How do you analyze orbital motion?

Set gravitational force equal to centripetal force: GMmr2=mv2rG\frac{Mm}{r^2} = m\frac{v^2}{r}.

How do you apply Newton's Second Law for Rotation?

Use the equation τnet=Iα\tau_{net} = I\alpha to relate net torque to rotational inertia and angular acceleration.

Define displacement (Δx\Delta x).

The change in position; a vector quantity.

Define velocity (v).

The rate of change of displacement; a vector quantity.

Define acceleration (a).

The rate of change of velocity; a vector quantity.

Define centripetal acceleration (\ac\a_c).

Acceleration directed towards the center of the circle. \ac=v2r\a_c = \frac{v^2}{r}

Define centripetal force (\Fc\F_c).

Net force causing circular motion. \Fc=mv2r\F_c = m\frac{v^2}{r}

Define work (W).

The transfer of energy by a force. W=Fdcos(θ)W = Fd\cos(\theta)

Define kinetic energy (KE).

Energy of motion. KE=12mv2KE = \frac{1}{2}mv^2

Define momentum (p).

Product of mass and velocity. p=mvp=mv. It is a vector quantity.

Define impulse (J).

Change in momentum. J=FΔt=ΔpJ = F\Delta t = \Delta p.

Define torque (<math-inline>\tau).

Rotational analog of force. τ=rFsin(θ)\tau = rF\sin(\theta)