Quiz for Conservative forces

Q1: Which of the following is a conservative force?

A. Frictional force B. Tension in string C. Gravitational force D. Air resistance

Q2: Which condition indicates a conservative force?

A. Work depends on velocity B. Work is path-independent C. Work depends on direction D. Work is always negative

Q3: Work done by a conservative force in a closed loop is:

A. Zero B. Positive C. Negative D. Depends on the loop

Q4: Which of the following is not a conservative force?

A. Electrostatic force B. Frictional force C. Gravitational force D. Spring force

Q5: The potential energy of a body is associated with which type of force?

A. Non-conservative B. Random C. Conservative D. All types

Q6: Which of the following forces is path-dependent?

A. Gravitational force B. Electrostatic force C. Spring force D. Friction

Q7: In which case is mechanical energy conserved?

A. In presence of air drag B. Only when work is done by friction C. Only under conservative forces D. Only in vertical motion

Q8: Which force has a corresponding potential energy function?

A. Normal force B. Frictional force C. Electrostatic force D. Tension

Q9: The force derived from a potential energy function is always:

A. Non-conservative B. Dissipative C. Conservative D. Zero

Q10: Which force is both central and conservative?

A. Magnetic force B. Friction C. Gravitational force D. Viscous force

Q11: The curl of a conservative force is:

A. Zero B. Infinity C. Equal to the force D. Negative of the force

Q12: A non-conservative force leads to:

A. Energy conservation B. Energy gain C. Mechanical energy loss D. Potential energy increase

Q13: Work done by a conservative force equals:

A. Total energy change B. Kinetic energy change C. Potential energy change D. Negative of potential energy change

Q14: Which of these is a property of conservative forces?

A. Depend on time B. Work depends on distance only C. Work depends on displacement only D. Work depends on speed

Q15: For conservative forces, total mechanical energy remains:

A. Constant B. Increasing C. Decreasing D. Zero

Q16: Which of the following forces is not derivable from potential energy?

A. Spring force B. Gravitational force C. Frictional force D. Electrostatic force

Q17: A particle returns to its starting point under a conservative force. What is the net work done?

A. Positive B. Negative C. Zero D. Infinite

Q18: F = -dU/dx applies to which type of forces?

A. Electromagnetic B. Non-conservative C. Gravitational only D. Conservative

Q19: Which of the following is a characteristic of a conservative force?

A. Path-dependent work B. Always opposes motion C. Zero work in closed loop D. Increases temperature

Q20: Which one is a scalar quantity associated with conservative force?

A. Impulse B. Power C. Potential energy D. Momentum