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Thermodynamics Questions for NEET. We covered all the Thermodynamics Questions for NEET in this post for free so that you can practice well for the exam.
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MCQ on Thermodynamics for NEET Students
A flag is hanging from a bike handle as the bike accelerates horizontally at 10√3 m/s². What will be the angle between the flag and the vertical? (g = 10 m/s²)
(A) 90°
(B) 45°
(C) 60°
(D) 30°
Option c – 60°
A 20 kg object strikes a wall at 5 m/s and rebounds with the same velocity. What is the change in its momentum?
(A) 20 kg m/s
(B) 50 kg m/s
(C) 100 kg m/s
(D) 200 kg m/s
Option d – 200 kg m/s
Two objects with masses 4 kg and 2 kg are tied with a string. If they are pulled with a 20 N force and the string’s tension is 10 N, what is the acceleration of the 2 kg mass?
(A) 6 m/s²
(B) 5 m/s²
(C) 8 m/s²
(D) 10 m/s²
Option b – 5 m/s²
An aircraft flies in a horizontal circular path at 120 m/s, with its wings tilted at 10°. Find the radius of its circular motion. (g = 10 m/s²)
(A) 17 km
(B) 25 km
(C) 36 km
(D) 8 km
Option d – 8 km
Three blocks weighing 3 kg, 5 kg, and x kg are connected on a frictionless surface and pulled with a force of 8 N. If the tension between the 3 kg and 5 kg blocks is 8 N, determine the value of x.
(A) 10 kg
(B) 4 kg
(C) 7 kg
(D) 5 kg
Option c – 7 kg
A 20 kg block moves 2 meters across a surface with a friction coefficient of 0.3. How much work is done against friction? (g = 10 m/s²)
(A) 122.6 J
(B) 120 J
(C) 200 J
(D) 188.4 J
Option b – 120 J
What is the ratio of the square of a projectile’s time of flight to its maximum height?
(A) 3/2
(B) 5/4
(C) 2/3
(D) 4/5
Option d – 4/5
A particle weighing 50 g is thrown upward with a speed of 10 m/s. Calculate the work done by gravity.
(A) -2.5 J
(B) -3 J
(C) -5 J
(D) -1.5 J
Option a – -2.5 J
A body is launched at 60° from the vertical. To achieve the same range using the same speed, what other angle could be used?
(A) 180°
(B) 30°
(C) 45°
(D) 90°
Option b – 30°
A gun fires a bullet at 84 m/s covering a range of 50 m. Find the elevation angle of the gun. (g = 10 m/s²)
(A) 10°
(B) 6°
(C) 2°
(D) 4°
Option c – 2°
Two springs with spring constants 2000 N/m and 4000 N/m are stretched using the same force. What is the ratio of their potential energies?
(A) 4 : 1
(B) 1 : 4
(C) 1 : 2
(D) 2 : 1
Option d – 2 : 1
Potential energy can be described as
(A) an absolute quantity
(B) a relative quantity
(C) always positive
(D) constant in nature
Option b – a relative quantity
A car goes around a curve of radius 60 m. If the friction coefficient is 0.5, above what speed will it start to skid?
(A) 4.98 m/s
(B) 17.32 m/s
(C) 10.64 m/s
(D) 15.43 m/s
Option b – 17.32 m/s
An object falls from a height of 5 m and loses 50% of its energy after the bounce. How high will it rise?
(A) 1.5 m
(B) 2.5 m
(C) 6.5 m
(D) 4.5 m
Option b – 2.5 m
A particle moves in a circle with constant angular speed. During this motion:
(A) energy is conserved
(B) momentum is conserved
(C) both energy and momentum are conserved
(D) neither is conserved
Option a – energy is conserved
A pulley supports two vertically hanging blocks weighing 2 kg and 4 kg. What is the system’s acceleration? (g = 10 m/s²)
(A) -1.23 m/s²
(B) 6.67 m/s²
(C) -4.28 m/s²
(D) -3.33 m/s²
Option d – -3.33 m/s²
Water falls onto a turbine from a height of 20 m. Determine the water’s velocity at impact. (g = 10 m/s²)
(A) 30 m/s
(B) 20 m/s
(C) 10 m/s
(D) 40 m/s
Option b – 20 m/s
A 5 kg block lies on a horizontal surface. What is its acceleration if a 200 N force is applied and the coefficient of friction is 0.2?
(A) 24 m/s²
(B) 56 m/s²
(C) 42 m/s²
(D) 38 m/s²
Option d – 38 m/s²
A cyclist travels at 80 km/h and enters a curve of radius 100 m, reducing speed at 4 m/s². What is the net acceleration?
(A) 4.9 m/s²
(B) 6.8 m/s²
(C) 7.4 m/s²
(D) 6.4 m/s²
Option d – 6.4 m/s²
If the angle between force and displacement is 90°, then
(A) no work is done
(B) work is negative
(C) work is maximum
(D) work is minimum
Option d – work is minimum
A man rides a bicycle uphill at 10 km/h on a 1-in-10 slope. If the combined mass of the man and bicycle is 60 kg, what is his power output?
(A) 326.2 W
(B) 210 W
(C) 163.5 W
(D) 174.1 W
Option c – 163.5 W
A 200-link chain has a mass of 3 kg and a length of 2 m. If its ends are joined and rotated at 2000 revolutions per minute, what is the centripetal force on each link?
(A) 309 N
(B) 255 N
(C) 496 N
(D) 209 N
Option d – 209 N
When two bodies stick together after collision, the collision is known as
(A) perfectly elastic
(B) partially elastic
(C) perfectly inelastic
(D) partially inelastic
Option c – perfectly inelastic
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