AP Physics 1: Equations to Memorize

The video tutorial covers essential equations for the AP Physics One exam, emphasizing those not on the provided equation sheet. It begins with basic kinematics, moves through forces and energy, discusses power and momentum, and covers circular motion and angular concepts. The tutorial concludes with electricity equations. The instructor highlights the importance of understanding when and how to use these equations, providing examples and explanations to aid memorization and application.

What does it mean when the net external torque acting on a system is zero?

• The system's linear momentum is conserved.

• The system's angular momentum is conserved.

• The system's energy is conserved.

• The system is in equilibrium.

How is average velocity different from average speed?

• Average speed is the total displacement divided by time.

• Average velocity considers direction, while average speed does not.

• Average speed is always zero, while average velocity is not.

• Average velocity is a scalar, while average speed is a vector.

When can the conservation of energy be applied?

• When there is no net force acting on the system.

• When there is no work done by friction or applied forces.

• When the system is in motion.

• When the system is at rest.

What is the relationship between power, force, and velocity?

• Power equals force divided by velocity.

• Power equals force times velocity times the cosine of the angle between them.

• Power equals velocity divided by force.

• Power equals force times velocity times the sine of the angle between them.

Under what condition can conservation of linear momentum be used?

• When the net force on the system is zero.

• When the system is at rest.

• When the system is in equilibrium.

• When the system is accelerating.

What is the equation for centripetal force?

• Net force equals mass times centripetal acceleration.

• Net force equals mass times tangential velocity.

• Net force equals mass times angular velocity.

• Net force equals mass times linear velocity.

How is electric power related to current and resistance?

• Electric power equals current squared times resistance.

• Electric power equals current divided by resistance.

• Electric power equals resistance squared times current.

• Electric power equals resistance divided by current.