Start learning →

WB Police Constable Work and Energy — practice questions — page 2

Explore 35 free Work and Energy questions in WB Police Constable Physics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Work and Energy with Quill →

Work and Energy questions and exercises with answers

Showing questions 31–35 of 35.

Complete the potential energy relationRead the answer and worked solution →Flip and pair: quantity with what it tracksRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Order the reasoning: why a pendulum keeps swingingRead the answer and worked solution →Conservative or not, in practiceRead the answer and worked solution →

Worked practice questions

Complete the potential energy relation

Read exercise and reference answers
Missing parts
  1. Answer
    negative
    Choices
    1. negative
    2. positive
    3. square
  2. Answer
    position
    Choices
    1. position
    2. time
    3. speed
Complete the statement
For a conservative force in one dimension, the force equals the {0} of the rate of change of the potential energy with {1}.
Force is minus the slope of the potential. Source: syllabus Physics, Ch 5 Work, Energy and Power.

Open this exercise →

Flip and pair: quantity with what it tracks

Read exercise and reference answers
Matching pairs
  1. A
    Kinetic energy
    B
    energy of motion
  2. A
    Potential energy
    B
    energy of position
  3. A
    Net work
    B
    change in kinetic energy
  4. A
    Conservative force
    B
    path-independent work
The chapter's energy vocabulary. Source: syllabus Physics, Ch 5 Work, Energy and Power.

Open this exercise →

Two are true, one is not

Read exercise and reference answers
Questions
  1. False statement
    Friction is conservative
    Statements
    1. Gravity is conservative
    2. Friction is not
    3. Friction is conservative
  2. False statement
    Zero net work means the body stops
    Statements
    1. Zero net work means the body stops
    2. Net work changes kinetic energy
    3. Zero net work means constant speed
  3. False statement
    It depends on the route travelled
    Statements
    1. Potential energy needs a conservative force
    2. It depends on the route travelled
    3. It depends on position
The false line gives friction a conservative property. Source: syllabus Physics, Ch 5 Work, Energy and Power.

Open this exercise →

How to practise

  1. Choose a Work and Energy question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Physics topics

Physics and MeasurementWork and PowerCurrent ElectricityC9kineticenergyElectromagnetismUnits and MeasurementVertical Projectile Motion in One DimensionWorkenergy