forces and effect

mcqspedia.com has 5 Question/Answers about Topic forces and effect

Use of friction in breaking pads of cars is a

Use of friction in breaking pads of cars is a
  • A. positive effect of friction
  • B. negative effect of friction
  • C. neutral effect
  • D. combined effect (positive and negative both)
  • Correct Answer: Option A

Friction has

Friction has
  • A. only negative effects
  • B. only positive effects
  • C. both positive and negative effects
  • D. no effect in our life
  • Correct Answer: Option C

Surface irregularities between two surfaces result in

Surface irregularities between two surfaces result in
  • A. resistance
  • B. repulsion
  • C. Friction
  • D. Attraction
  • Correct Answer: Option C

Reduction in efficiency of cars by 20% is a

Reduction in efficiency of cars by 20% is a
  • A. positive effect of friction
  • B. negative effect of friction
  • C. neutral effect
  • D. combined effect (positive and negative both)
  • Correct Answer: Option B

Scalar quantity in four of following is

Scalar quantity in four of following is
  • A. acceleration
  • B. velocity
  • C. force
  • D. energy
  • Correct Answer: Option D