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AP Physics 1 Work, Energy, and Energy Resources — practice questions — page 2

Explore 75 free Work, Energy, and Energy Resources questions in AP Physics 1 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Work, Energy, and Energy Resources questions and exercises with answers

Showing questions 31–60 of 75.

A car's speedometer shows the magnitude of its:Read the answer and worked solution →You drive to a store and back in half an hour, 6 km total. Your average speed is 12 km/h and your average velocity is:Read the answer and worked solution →Average acceleration is the rate at which which quantity changes?Read the answer and worked solution →A car turning a corner at constant speed is:Read the answer and worked solution →When an object slows down, its acceleration opposite to its motion is called:Read the answer and worked solution →A racehorse accelerates from rest to 15.0 m/s west in 1.80 s. Its average acceleration magnitude is:Read the answer and worked solution →The train slows from 30.0 km/h to a stop in 8.00 s. Its acceleration is about:Read the answer and worked solution →Catch the vectorsRead the answer and worked solution →Pop the kinematics wordsRead the answer and worked solution →Run the motion numbersRead the answer and worked solution →Slice the kinematics wordsRead the answer and worked solution →Vector or scalarRead the answer and worked solution →Sort distance, velocity and accelerationRead the answer and worked solution →Type the numberRead the answer and worked solution →Kinematics bingoRead the answer and worked solution →Linear momentum is the product of a system's mass and its:Read the answer and worked solution →The SI unit for momentum is:Read the answer and worked solution →A 110 kg football player runs at 8.00 m/s. His momentum is:Read the answer and worked solution →A 0.410 kg football thrown at 25.0 m/s has momentum of about:Read the answer and worked solution →Although the ball is faster, the player has far more momentum because of his much greater:Read the answer and worked solution →Momentum form of Newton's second law is useful for systems whose mass changes, such as:Read the answer and worked solution →Venus Williams's 2007 serve reached a ball speed of:Read the answer and worked solution →The average force on the 0.057 kg ball in contact with the racquet for 5.0 ms was about:Read the answer and worked solution →The quantity average net force multiplied by the time it acts is called:Read the answer and worked solution →Airbags reduce injury by making the stopping force act over a:Read the answer and worked solution →Deaths in car racing fell sharply when rigid frames were replaced by parts that:Read the answer and worked solution →Rolling on the ground after a jump protects your bones by extending the:Read the answer and worked solution →On a force-versus-time graph, the area under the curve equals the:Read the answer and worked solution →When a football player hits a goalpost, momentum is still conserved because the Earth also:Read the answer and worked solution →An isolated system is one for which the net external force is:Read the answer and worked solution →

Worked practice questions

A car's speedometer shows the magnitude of its:

  1. Average acceleration
  2. Instantaneous velocity
  3. Average trip velocity
  4. Net displacement
Show answer and solution

Correct answer: B. Instantaneous velocity

1. It shows speed at that instant, not direction. 2. That is the magnitude of instantaneous velocity. 3. Police tickets are based on it. _Source: OpenStax College Physics for AP Courses 2e, Chapter 2, Kinematics (CC BY 4.0)._

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You drive to a store and back in half an hour, 6 km total. Your average speed is 12 km/h and your average velocity is:

  1. 6 km/h
  2. 3 km/h
  3. 0 km/h
  4. 12 km/h
Show answer and solution

Correct answer: C. 0 km/h

1. Displacement for a round trip is zero. 2. So average velocity is zero. 3. Average speed is not the magnitude of average velocity. _Source: OpenStax College Physics for AP Courses 2e, Chapter 2, Kinematics (CC BY 4.0)._

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Average acceleration is the rate at which which quantity changes?

  1. Position
  2. Distance
  3. Weight
  4. Velocity
Show answer and solution

Correct answer: D. Velocity

1. Its units are meters per second squared. 2. Acceleration is the rate of change of velocity. 3. A change in direction also counts. _Source: OpenStax College Physics for AP Courses 2e, Chapter 2, Kinematics (CC BY 4.0)._

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