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Work, Energy, and Power in Physics

Question 1
college-boardPhysics C: MechanicsAPExam Style
1 mark

When comparing two gears in meshed operation, if Gear A has twice as many teeth as Gear B but half its diameter, what will be true for their angular velocities?

Question 2
college-boardPhysics C: MechanicsAPExam Style
1 mark

What force is required to keep a 5 kg object moving at a constant velocity of 10 m/s on a frictionless surface?

Question 3
college-boardPhysics C: MechanicsAPExam Style
1 mark

Quelle est l'unité standard de mesure pour la quantité de mouvement dans le système international d'unités ?

Question 4
college-boardPhysics C: MechanicsAPExam Style
1 mark

Which quantity remains constant for a frictionless roller coaster car moving along a track?

Question 5
college-boardPhysics C: MechanicsAPExam Style
1 mark

In order assess if static frictional force experiences quantum effects similar those observed dynamic frictional scenarios what laboratory apparatus should constructed perform this investigation?

Question 6
college-boardPhysics C: MechanicsAPExam Style
1 mark

Assuming Newton's second law remains valid, how might increasing the inertial mass term 'm' influence force 'F' and acceleration 'a' for objects when applying F=maF=ma?

Question 7
college-boardPhysics C: MechanicsAPExam Style
1 mark

A car traveling around a circular track speeds up uniformly from rest; which statement best describes how radial acceleration changes during this process?

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Question 8
college-boardPhysics C: MechanicsAPExam Style
1 mark

If a block of mass m is released from rest at a height h above the bottom of a frictionless track and then slides into a loop-the-loop with radius r, what minimum height must h be so that the block just barely completes the loop without losing contact?

Question 9
college-boardPhysics C: MechanicsAPExam Style
1 mark

How might altering the coefficient of kinetic friction between two surfaces in contact without modifying the normal reaction or surface characteristics influence the motion of one body being dragged across another using the μkN=Fk\mu_k N = F_k equation?

Question 10
college-boardPhysics C: MechanicsAPExam Style
1 mark

What does the derivative of a position function with respect to time represent in physics?