Physics Mechanics Review

F(t) = -16t³ + 12t + 3. What could this easily be used to find?

• Potential Energy

• Rotational Inertia

• Impulse

• Displacement

A block rests on a inclined plane. What is the normal force exerted on the block by the incline in terms of m, θ, and physical constants?

• mgsinθ

• mgcosθ

• 2mgcosθ

• 2mgsinθ

Tags

NGSS.HS-PS2-1

What are the units for angular momentum?

• Nm

• kgm/s

• kgm² /s

• N/s

F(x) = 23x⁵ + x³ - 12. What could this be used to find?

• Impulse

• Linear Momentum

• Angular Acceleration

• Potential Energy

A certain one-dimensional conservative force is given as a function of x by the expression F = -kx⁵, where F is in Newtons and x is in meters. A possible potential energy function U for this force is

• U = -5kx⁴

• U = 5kx⁴

• U = -1/5kx⁵

• U = 1/6kx⁶

Tags

NGSS.HS-PS3-2

• U(r) = -Gm₁m₂/r²

• U(r) = Gm₁m₂/r

• U(r) = -Gm₁m₂/r

• U(r) = Gm₁m₂/r²

Tags

NGSS.HS-PS2-4

How would you determine change in momentum if you are given F(t)?

• Multiply the force by the distance

• Take the integral of the force with respect to position

• Take the derivative of the force with respect to time

• Take the integral of the force with respect to time

Tags

NGSS.HS-PS2-2

What is another form for Joule?

• N/m

• kgm²/s²

• kgm/s²

• kgm²/s

What is net work equal to?

• Change in kinetic energy

• Change in potential energy

• Change in momentum

• Change in force

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What is the Parallel Axis Theorem?

• I = I_{cm - mD}²

• I_cm = I + mD²

• I = I_cm + mD²

• I = mD²