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AP Physics 1 Unit 4A: Linear Momentum and Impulse — practice questions

Explore 92 free Unit 4A: Linear Momentum and Impulse 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 4A: Linear Momentum and Impulse questions and exercises with answers

Showing questions 1–30 of 92.

Match each momentum termRead the answer and worked solution →True or false: momentumRead the answer and worked solution →Conserved or not conserved?Read the answer and worked solution →Complete the momentum rulesRead the answer and worked solution →Which law explains it?Read the answer and worked solution →An object thrown into the air and moving under gravity alone is called a:Read the answer and worked solution →The path followed by a projectile is called its:Read the answer and worked solution →The key to analysing projectile motion is to resolve it into motions along:Read the answer and worked solution →The horizontal and vertical components of two-dimensional motion are:Read the answer and worked solution →Adding two vectors graphically by placing the tail of one at the head of the other is the:Read the answer and worked solution →The vector drawn from the tail of the first vector to the head of the last is called the:Read the answer and worked solution →The horizontal and vertical components of a motion add together to give:Read the answer and worked solution →Because gravity acts vertically, the horizontal acceleration of a projectile is:Read the answer and worked solution →If you set up a coordinate system with downwards as positive, the acceleration due to gravity takes:Read the answer and worked solution →Subtracting vectors is described as analogous to the subtraction of:Read the answer and worked solution →The two named approaches to vector addition and subtraction are graphical methods and:Read the answer and worked solution →Resolving projectile motion into perpendicular directions works because each direction can then be treated as:Read the answer and worked solution →The head-to-tail method gives the same resultant regardless of the order the vectors are drawn because vector addition is:Read the answer and worked solution →Choosing which direction counts as positive in a projectile problem affects:Read the answer and worked solution →A projectile's horizontal velocity stays constant during flight because:Read the answer and worked solution →Horizontal or vertical component?Read the answer and worked solution →Match each two-dimensional termRead the answer and worked solution →Solve a projectile problem in orderRead the answer and worked solution →True or false: projectile motionRead the answer and worked solution →Complete the projectile rulesRead the answer and worked solution →The first condition necessary to achieve equilibrium is that the system's net external force is:Read the answer and worked solution →For full equilibrium, alongside zero net force, what else must be zero?Read the answer and worked solution →The second condition for equilibrium involves avoiding:Read the answer and worked solution →The shortest distance from the pivot point to the line along which a force acts is the:Read the answer and worked solution →A system in neutral equilibrium has an equilibrium that is:Read the answer and worked solution →

Worked practice questions

Match each momentum term

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Matching pairs
  1. Left
    Linear momentum
    Right
    Mass multiplied by velocity
  2. Left
    Isolated system
    Right
    Net external force is zero
  3. Left
    Second law
    Right
    Force is momentum change per time
Instructions
Tap a term on the left, then tap its meaning on the right.
_Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 8 'Linear Momentum and Collisions', sections 8.1-8.7_

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True or false: momentum

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Questions
  1. Statement is true
    Yes
    Statement
    Momentum is conserved in an isolated system.
  2. Statement is true
    No
    Statement
    Vertical momentum is conserved during projectile flight.
  3. Statement is true
    Yes
    Statement
    The Earth recoils when a player hits a goalpost.
  4. Statement is true
    Yes
    Statement
    The momentum form of the second law suits rockets.
  5. Statement is true
    No
    Statement
    A football carries more momentum than the player.
Instructions
Tap True or False for each statement.
_Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 8 'Linear Momentum and Collisions', sections 8.1-8.7_

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Conserved or not conserved?

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Left
Conserved
Items
  1. Item
    Isolated system
    Answer
    Conserved
  2. Item
    Flat in flight
    Answer
    Conserved
  3. Item
    Two cars colliding
    Answer
    Conserved
  4. Item
    Vertical in flight
    Answer
    Not conserved
  5. Item
    Net force acting
    Answer
    Not conserved
  6. Item
    Gravity pulls down
    Answer
    Not conserved
Right
Not conserved
Instructions
Swipe left for Conserved, right for Not conserved.
_Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 8 'Linear Momentum and Collisions', sections 8.1-8.7_

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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 3B: Potential Energy & Conservation of EnergyUnit 4B: Conservation of Linear Momentum & Collisions