NCERT Class 11 Physics MCQ Chapter 4 Laws of Motion Solutions, AHSEC Class 11 Physics Multiple Choice Question Answer to each chapter is provided in the list so that you can easily browse throughout different chapters NCERT Class 11 Physics MCQ Chapter 4 Laws of Motion Question Answer and select needs one.
Class 11 Physics MCQ Chapter 4 Laws of Motion
Also, you can read the SCERT book online in these sections NCERT Class 11 Physics Multiple Choice Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. AHSEC Class 11 Physics MCQ Solutions. These solutions are part of SCERT All Subject Solutions. Here we have given HS 1st Year Physics Objective Type Question Answer for All Subjects, You can practice these here.
Laws of Motion
Chapter: 4
| PART – Ⅰ |
MULTIPLE CHOICE QUESTION ANSWER
1. What concept is needed in addition to velocity to describe non-uniform motion?
(i) Speed.
(ii) Time.
(iii) Distance.
(iv) Acceleration.
Ans: (iv) Acceleration.
2. Newton’s first law of motion describes the:
(i) Energy.
(ii) Work.
(iii) Inertia.
(iv) Moment of inertia.
Ans: (iii) Inertia.
3. What external force slows down a toy car moving on the floor?
(i) Gravity.
(ii) Air resistance.
(iii) Friction.
(iv) Inertia.
Ans: (iii) Friction.
4. Inertia is the property of a body linked to tendency of a body
(i) To change its position.
(ii) To change its direction.
(iii) To change the momentum.
(iv) To resist any change in its state.
Ans: (iv) To resist any change in its state.
5. A drop of rain falls with a constant speed. What is the net force acting on it?
(i) Equal to its weight.
(ii) Zero.
(iii) Equal to the upthrust.
(iv) Equal to the air resistance.
Ans: (ii) Zero.
6. Which force acts on a stone falling from a building?
(i) Magnetic force.
(ii) Gravitational force.
(iii) Frictional force.
(iv) Buoyant force.
Ans: (ii) Gravitational force.
7. A cannon after firing recoils due to:
(i) Conservation of energy.
(ii) Newton’s second law of motion.
(iii) Newton’s third law of motion.
(iv) Newton’s first law of motion.
Ans: (iii) Newton’s third law of motion.
8. What external force opposes the motion of objects on Earth?
(i) Magnetic force.
(ii) Gravity.
(iii) Friction.
(iv) Nuclear force.
Ans: (iii) Friction.
9. What is the force called that acts even from a distance, such as magnetic or gravitational force?
(i) Contact force.
(ii) Non-contact force.
(iii) Balanced force.
(iv) Static force.
Ans: (ii) Non-contact force.
10. Which of the following statements about friction is true?
(i) Friction can be reduced to zero.
(ii) Frictional force cannot accelerate a body.
(iii) Frictional force is proportional to the area of contact between the two surfaces.
(iv) Kinetic friction is always greater than rolling friction.
Ans: (iv) Kinetic friction is always greater than rolling friction.
11. What is the direction of the net force acting on an object moving in a circle at constant speed?
(i) Towards the centre.
(ii) Tangential to the circle.
(iii) Outwards from the centre.
(iv) Opposite to the motion.
Ans: (i) Towards the centre.
12. Who developed the three laws of motion?
(i) Galileo.
(ii) Aristotle.
(iii) Newton.
(iv) Einstein.
Ans: (iii) Newton.
13. Which of the following laws of motion is related to inertia?
(i) First law.
(ii) Second Law.
(iii) Third Law.
(iv) Fourth Law.
Ans: (i) First law.
14. What type of motion does a falling leaf exhibit?
(i) Translational only.
(ii) Rotational only.
(iii) Vibrational only.
(iv) Translational, rotational, and vibrational.
Ans: (iv) Translational, rotational, and vibrational.
15. A retarding force of 10 N is applied to a 2 kg object moving at 10 m/s. How long until it stops?
(i) 1 s
(ii) 2 s
(iii) 3 s
(iv) 5 s
Ans: (ii) 2 s
