zuai-logo
zuai-logo
  1. AP Physics C Mechanics
FlashcardFlashcardStudy GuideStudy GuideQuestion BankQuestion Bank
GlossaryGlossary

Work, Energy, and Power

Question 1
Physics C: Mechanics (2025)APConcept Practice
1 mark

What is power defined as, and what are its units?

Question 2
Physics C: Mechanics (2025)APConcept Practice
1 mark

A work-time graph shows work increasing linearly with time. What does the slope of this graph represent?

Question 3
Physics C: Mechanics (2025)APConcept Practice
1 mark

The work done on an object is given by the function W(t)=3t2+2tW(t) = 3t^2 + 2tW(t)=3t2+2t, where WWW is in Joules and ttt is in seconds. Find the power exerted on the object as a function of time.

Question 4
Physics C: Mechanics (2025)APConcept Practice
1 mark

A force F⃗=(5i^+3j^)\vec{F} = (5\hat{i} + 3\hat{j})F=(5i^+3j^​) N acts on an object moving with a velocity v⃗=(2i^)\vec{v} = (2\hat{i})v=(2i^) m/s. What is the instantaneous power delivered by the force?

Question 5
Physics C: Mechanics (2025)APConcept Practice
1 mark

A car is moving with a velocity of v⃗=(10i^+5j^)\vec{v} = (10\hat{i} + 5\hat{j})v=(10i^+5j^​) m/s, and a force of F⃗=(2i^−1j^)\vec{F} = (2\hat{i} - 1\hat{j})F=(2i^−1j^​) N is acting on it. What is the power being delivered to the car?

Question 6
Physics C: Mechanics (2025)APConcept Practice
1 mark

A force acting on an object is given by F⃗(x)=(3x2)i^\vec{F}(x) = (3x^2)\hat{i}F(x)=(3x2)i^ N, where xxx is the position in meters. The object's velocity is given by v⃗(t)=(2t)i^\vec{v}(t) = (2t)\hat{i}v(t)=(2t)i^ m/s. Find the power exerted by the force at t=2t = 2t=2 s, assuming x=t2x = t^2x=t2.

Question 7
Physics C: Mechanics (2025)APConcept Practice
1 mark

On a work vs. time graph, which time interval indicates the greatest power output?

Feedback stars icon

How are we doing?

Give us your feedback and let us know how we can improve

Question 8
Physics C: Mechanics (2025)APConcept Practice
1 mark

A work vs. time graph shows that the work done increases from 10 J to 30 J over a time interval of 4 seconds. What is the average power during this interval?

Question 9
Physics C: Mechanics (2025)APConcept Practice
1 mark

The graph of power vs. time is given. What does the area under the curve represent?

Question 10
Physics C: Mechanics (2025)APConcept Practice
1 mark

What is power defined as?