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AP Physics 1 Kinematics — practice questions — page 4

Explore 111 free Kinematics questions in AP Physics 1 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Kinematics questions and exercises with answers

Showing questions 91–111 of 111.

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 →Squids propel themselves like jellyfish and typically move at:Read the answer and worked solution →A collision that conserves internal kinetic energy is called:Read the answer and worked solution →Truly elastic collisions are achieved only with:Read the answer and worked solution →A 0.500 kg object at 4.00 m/s hits a 3.50 kg object at rest elastically. The small object:Read the answer and worked solution →A collision in which the objects stick together is called:Read the answer and worked solution →A 70.0 kg goalie at rest catches a 0.150 kg puck moving at 35.0 m/s. His recoil velocity is:Read the answer and worked solution →Why does a heavier tennis racquet have the advantage? In a collision what is conserved is:Read the answer and worked solution →Catch the elastic collisionsRead the answer and worked solution →Pop the impulse saversRead the answer and worked solution →Run the momentum numbersRead the answer and worked solution →Slice the momentum wordsRead the answer and worked solution →Elastic or inelasticRead the answer and worked solution →Sort momentum, impulse and collisionRead the answer and worked solution →Type the numberRead the answer and worked solution →Momentum bingoRead the answer and worked solution →

Worked practice questions

Airbags reduce injury by making the stopping force act over a:

  1. Shorter time
  2. Larger mass
  3. Smaller area
  4. Longer time
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Correct answer: D. Longer time

1. The momentum change is the same either way. 2. A longer time means a smaller force. 3. Padding and crumple zones work the same way. _Source: OpenStax College Physics for AP Courses 2e, Chapter 8, Linear Momentum and Collisions (CC BY 4.0)._

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Deaths in car racing fell sharply when rigid frames were replaced by parts that:

  1. Crumple
  2. Stiffen
  3. Shine
  4. Float
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Correct answer: A. Crumple

1. Crumpling lengthens the collision time. 2. So the force on the car is less. 3. Deaths decreased dramatically. _Source: OpenStax College Physics for AP Courses 2e, Chapter 8, Linear Momentum and Collisions (CC BY 4.0)._

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Rolling on the ground after a jump protects your bones by extending the:

  1. Speed of landing
  2. Time the force acts
  3. Height of the jump
  4. Mass of your body
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Correct answer: B. Time the force acts

1. Landing stiff-legged gives a huge force. 2. Rolling spreads the stop over more time. 3. Parachutists do the same. _Source: OpenStax College Physics for AP Courses 2e, Chapter 8, Linear Momentum and Collisions (CC BY 4.0)._

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