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AP Physics 1 Unit 3B: Potential Energy & Conservation of Energy — practice questions — page 3

Explore 92 free Unit 3B: Potential Energy & Conservation of Energy questions in AP Physics 1 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 3B: Potential Energy & Conservation of Energy questions and exercises with answers

Showing questions 61–90 of 92.

The maximum displacement from equilibrium in an oscillation is called the:Read the answer and worked solution →Oscillatory motion where the net force follows Hooke's law is called:Read the answer and worked solution →The force that pulls an oscillating object back toward equilibrium is the:Read the answer and worked solution →A simple harmonic oscillator can be used as a clock because its period is:Read the answer and worked solution →Making an oscillating object stiffer, that is raising its force constant, makes the period:Read the answer and worked solution →Amplitude is measured in metres for a mass on a spring, but for sound oscillations it is measured in units of:Read the answer and worked solution →A simple pendulum behaves as a simple harmonic oscillator only for amplitudes that are:Read the answer and worked solution →The only two things that affect the period of a simple pendulum are gravity and its:Read the answer and worked solution →A car settling when someone gets in would keep oscillating if it were not for damping supplied by:Read the answer and worked solution →For a mass on a spring, the acceleration is obtained from the force using:Read the answer and worked solution →A vibration differs from an oscillation in that a vibration may be:Read the answer and worked solution →If all the work done in deforming an object goes into deformation alone, that work is stored as:Read the answer and worked solution →Two pendulums differing only in the mass of the bob will:Read the answer and worked solution →Match each oscillation termRead the answer and worked solution →Affects a pendulum's period?Read the answer and worked solution →True or false: oscillationsRead the answer and worked solution →Follow one oscillation cycleRead the answer and worked solution →Complete the pendulum ruleRead the answer and worked solution →Linear momentum is defined as a system's mass multiplied by its:Read the answer and worked solution →Newton stated his second law in terms of momentum, calling momentum the:Read the answer and worked solution →Stated in terms of momentum, Newton's second law says net external force equals change in momentum divided by:Read the answer and worked solution →Momentum is an especially important quantity in physics because it is:Read the answer and worked solution →A system for which the net external force is zero is described as:Read the answer and worked solution →Why is a football player's motion barely affected by catching a ball?Read the answer and worked solution →The momentum form of Newton's second law is more general than force equals mass times acceleration because it also applies to systems with:Read the answer and worked solution →When a player runs into a goalpost and bounces back, momentum is conserved because:Read the answer and worked solution →In a two-car collision, the changes in the two cars' momenta:Read the answer and worked solution →In projectile motion with negligible air resistance, momentum is conserved:Read the answer and worked solution →A jellyfish moves by filling its umbrella with water and then:Read the answer and worked solution →A ball striking a wall head-on and bouncing straight back exerts a force on the wall, and the wall's force on the ball is deduced using:Read the answer and worked solution →

Worked practice questions

The maximum displacement from equilibrium in an oscillation is called the:

  1. The wave node
  2. The amplitude
  3. The full period
  4. The wave phase
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Correct answer: B. The amplitude

1. An oscillator swings out to a furthest point on each side. 2. The maximum displacement from equilibrium is called the amplitude. 3. Because amplitude is the maximum displacement, it is related to the energy in the oscillation. 4. Period measures time rather than distance. _Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 16 'Oscillatory Motion and Waves', sections 16.1-16.11_

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Oscillatory motion where the net force follows Hooke's law is called:

  1. Projectile motion
  2. Rotational motion
  3. Simple harmonic motion
  4. Uniform circular motion
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Correct answer: C. Simple harmonic motion

1. Hooke's law says the restoring force is proportional to the displacement. 2. The oscillations of a system in which the net force can be described by Hooke's law are of special importance because they are very common. 3. Simple harmonic motion is the name given to oscillatory motion for such a system. 4. Such a system is called a simple harmonic oscillator. _Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 16 'Oscillatory Motion and Waves', sections 16.1-16.11_

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The force that pulls an oscillating object back toward equilibrium is the:

  1. Centripetal force
  2. Frictional force
  3. Buoyant force
  4. Restoring force
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Correct answer: D. Restoring force

1. Newton's first law implies that an object oscillating back and forth is experiencing forces. 2. Without force, the object would move in a straight line at a constant speed rather than oscillate. 3. Once released, the restoring force causes the ruler to move back toward its stable equilibrium position, where the net force on it is zero. 4. By the time it gets there it has gained momentum and overshoots, which is what keeps the cycle going. _Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 16 'Oscillatory Motion and Waves', sections 16.1-16.11_

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More Physics topics

Unit 8: Fluids: Density, Buoyancy and ContinuityUnit 1B: Kinematics: 2D Motion & ProjectilesUnit 1C: Kinematics: Relative & Circular MotionUnit 2A: Newton's Laws and Translational EquilibriumUnit 2B: Friction, Gravitational and Normal ForcesUnit 3A: Work and Kinetic Energy TheoremUnit 4A: Linear Momentum and ImpulseUnit 4B: Conservation of Linear Momentum & Collisions