Session 6 Warm-Up

Which of the following is the correct equation for torque?

• τ = r × F
• τ = F × r

• τ = r ⋅ F

• τ = F ⋅ r

When an object is moving in a circle what force is always present?

• Frictional force
• Gravitational force
• Coulombic force

• Centripetal force

What is power as covered in Physics I?

• Power is the total amount of energy stored.
• Power is the rate of doing work or transferring energy.
• Power is the force applied over a distance.
• Power is the mass of an object multiplied by its velocity.

Suppose vector A is pointed into the screen and vector B is pointed downward. What is the direction of the cross product?

• To the right
• Upward
• Out of the screen
• To the left
• Cross product is zero

What does RMS stand for (in Ch 18)?

• Relative Medium Square

• Random Measurement System
• Root Mean Square
• Relative Mean Square

What is the derivative of sin(x); derivative of cos(x)?

• 0; 0

• cos(x); -sin(x)

• sin(x); cos(x)

• -cos(x); sin(x)

What is the integral of e^(ax)?

• (1/a)e^(2ax)

• e^(ax)

• (1/a)e^(ax)

• (a)e^(ax)

Two Capacitors in series have the same...

• Voltage (V)

• Energy (U) stored

• Charge (Q)

• Capacitance (C)

What is the force on a charged particle in an electric field?

• F = E/q
• F = qV
• F = mE
• F = qE

Two capacitors in parallel have the same...

• Voltage (V)

• Charge (Q)

• Current (I)

• Energy stored (U)