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AP Physics 1 Dynamics: Force and Newton's Laws of Motion — practice questions — page 2

Explore 53 free Dynamics: Force and Newton's Laws of Motion questions in AP Physics 1 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Dynamics: Force and Newton's Laws of Motion questions and exercises with answers

Showing questions 31–53 of 53.

A kilogram of cotton balls and a kilogram of gold have:Read the answer and worked solution →Newton's second law states acceleration is directly proportional to net external force and inversely proportional to:Read the answer and worked solution →The newton is the force needed to accelerate a 1 kg system at:Read the answer and worked solution →The weight of a 1.0 kg object on Earth is about:Read the answer and worked solution →On the Moon, where g is 1.625 m/s squared, a 1.0 kg mass weighs about:Read the answer and worked solution →A net force of 51 N pushes a 24 kg lawn mower. Its acceleration is about:Read the answer and worked solution →Whenever one body exerts a force on a second, the first experiences an equal and opposite force. This is Newton's:Read the answer and worked solution →A swimmer pushes on the pool wall and accelerates away. The two equal and opposite forces do not cancel because they act on:Read the answer and worked solution →A rocket moves forward because expelled gas exerts a forward reaction force called:Read the answer and worked solution →The support force perpendicular to a surface of contact is called the:Read the answer and worked solution →On a frictionless incline at angle theta, the acceleration of any mass is:Read the answer and worked solution →A 5.00 kg mass hangs at rest from a rope. The tension in the rope is:Read the answer and worked solution →A 70 kg tightrope walker makes a wire sag by 5 degrees. The tension in the wire is about:Read the answer and worked solution →Forces that appear only because an observer is in an accelerating frame of reference are:Read the answer and worked solution →Earth's rotation is slow enough that Earth is nearly a:Read the answer and worked solution →Catch the contact forcesRead the answer and worked solution →Pop the third law examplesRead the answer and worked solution →Run Newton's lawsRead the answer and worked solution →Slice the dynamics wordsRead the answer and worked solution →Mass or weightRead the answer and worked solution →Sort the three lawsRead the answer and worked solution →Type the numberRead the answer and worked solution →Newton's laws bingoRead the answer and worked solution →

Worked practice questions

A kilogram of cotton balls and a kilogram of gold have:

  1. Equal colour
  2. Equal mass
  3. Equal volume
  4. Equal density
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Correct answer: B. Equal mass

1. A kilogram is a kilogram. 2. Their masses are equal. 3. Volume and density differ. _Source: OpenStax College Physics for AP Courses 2e, Chapter 4, Dynamics: Force and Newton's Laws of Motion (CC BY 4.0)._

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Newton's second law states acceleration is directly proportional to net external force and inversely proportional to:

  1. Heat
  2. Size
  3. Mass
  4. Time
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Correct answer: C. Mass

1. The same force barely moves a car but flings a basketball. 2. Acceleration is inversely proportional to mass. 3. The law is verified by experiment. _Source: OpenStax College Physics for AP Courses 2e, Chapter 4, Dynamics: Force and Newton's Laws of Motion (CC BY 4.0)._

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The newton is the force needed to accelerate a 1 kg system at:

  1. 10 m/s squared
  2. 9.8 m/s squared
  3. 100 m/s squared
  4. 1 m/s squared
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Correct answer: D. 1 m/s squared

1. Force units come from mass, length and time. 2. One newton gives 1 kg an acceleration of 1 m/s squared. 3. One newton is about 0.225 pounds. _Source: OpenStax College Physics for AP Courses 2e, Chapter 4, Dynamics: Force and Newton's Laws of Motion (CC BY 4.0)._

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