Review of all Mechanics Dimensions - AP Physics C

The video tutorial covers the importance of dimensions in physics, starting with an introduction to dimensions as friends in understanding mechanics. It discusses the dimensions and symbols for various physical quantities such as force, arc length, velocity, acceleration, work, energy, power, impulse, momentum, angular velocity, angular acceleration, torque, mass density, and moments of inertia. The tutorial emphasizes the differences between tangential and centripetal acceleration, the role of angular velocity and acceleration in circular motion, and the distinction between torque and work. The session concludes with a reminder of the availability of lecture notes.

What is the symbol used for arc length in physics?

• Uppercase S

• Uppercase A

• Lowercase S

• Lowercase A

How do tangential and centripetal accelerations differ in circular motion?

• Tangential is tangent, centripetal is inward.

• Tangential is inward, centripetal is tangent.

• They are both tangent to the circle.

• They are both directed inward.

Which of the following is measured in Joules?

• Work

• Velocity

• Power

• Force

What is the unit of power in physics?

• Watt

• Joule

• Newton

• Meter

What is the symbol for angular momentum?

• Uppercase L

• Lowercase L

• Lowercase M

• Uppercase M