General Physics I Exam #3 Review

Flashcards based on General Physics I Exam #3 review notes.

Work Unit

The correct SI unit of work is kg m²/s².

Acceleration at Constant Speed

An object moving at a constant speed can accelerate if the direction of its velocity changes.

Motion Type

A particle with constant speed and acceleration perpendicular to velocity moves in a circle.

Centripetal Force Work

Centripetal force does no work on an object because the force and displacement are perpendicular.

Positive Work Effect

If net work done on an object is positive, the kinetic energy increases.

Mass Ratio

The ratio of brick's mass to pebble's mass, with same kinetic energy, is 25 to 9.

Centripetal Acceleration

The centripetal acceleration of a point on a bicycle wheel perimeter is 1.8 x 10² m/s².

Work Done Lifting

The work done in lifting an object vertically is 180 J.

Maximum Speed

The maximum speed of the mass without breaking the string is 26 m/s.

Minimum Radius

The minimum radius of curvature a jet plane's pilot can tolerate is 1060 m.

Dart Speed

The speed at which the dart leaves the gun is approximately 14 m/s.

Skier Speed

The speed of the skier at the bottom of the slope is 31 m/s.

Gravitational Force

The gravitational force on a person due to the Moon is 0.0024 N.

Energy Usage Rate

The rate at which the boy uses energy running upstairs is 735 W.

Average Power

The average power delivered by the engine is 90 hp.

Lunar Gravity

The acceleration due to gravity at the surface of the Moon is 1.6 m/s².

Work to Stop Mass

The work required to stop the mass is 125 J.

Work Done Pulling

The work done by Matthew pulling Sarah is 575 J.

Attractive Force

The mutual attractive force between electron and proton is 3.6 × 10^-47 N.

Friction Coefficient

The minimum coefficient of friction for the car to make the turn is 0.40.