BNST Scholarship Test 2026/2027 | Complete Practice Exam & Sample
Questions | Physics, Chemistry, Mathematics, Biology & Mental
Ability
SECTION I — PHYSICS
Questions 1–60
1. What is the SI unit of force?
A. Joule
B. Newton
C. Pascal
D. Watt
Answer: B. Newton
Explanation: Force is measured in newtons (N), defined as the force
needed to accelerate 1 kg by 1 m/s².
2. Which quantity is a scalar?
A. Velocity
B. Force
C. Speed
D. Displacement
Answer: C. Speed
Explanation: Speed has magnitude only, while velocity, force, and
displacement have both magnitude and direction.
3. A car travels 150 m in 10 seconds. What is its average speed?
A. 10 m/s
B. 15 m/s
C. 20 m/s
D. 25 m/s
,Answer: B. 15 m/s
Explanation: Speed = distance ÷ time = 150 ÷ 10 = 15 m/s.
4. Which law states that an object remains at rest or in uniform
motion unless acted upon by an external force?
A. Newton's First Law
B. Newton's Second Law
C. Newton's Third Law
D. Law of gravitation
Answer: A. Newton's First Law
Explanation: Newton's First Law is also called the law of inertia.
5. What is the acceleration due to gravity near Earth's surface?
A. 4.9 m/s²
B. 8.0 m/s²
C. 9.8 m/s²
D. 12 m/s²
Answer: C. 9.8 m/s²
Explanation: The standard approximate value of gravitational
acceleration near Earth's surface is 9.8 m/s².
6. A 5 kg object experiences an acceleration of 4 m/s². What force acts
on it?
A. 9 N
B. 20 N
C. 25 N
D. 40 N
Answer: B. 20 N
Explanation: From F = ma, F = 5 × 4 = 20 N.
,7. What is the SI unit of work?
A. Watt
B. Newton
C. Joule
D. Pascal
Answer: C. Joule
Explanation: One joule is the work done when a force of one newton
moves an object one metre in the force's direction.
8. Which expression represents kinetic energy?
A. mgh
B. ½mv²
C. Fd
D. Pt
Answer: B. ½mv²
Explanation: Kinetic energy is the energy possessed by an object
because of its motion.
9. What happens to kinetic energy if the velocity of an object is
doubled?
A. It doubles
B. It becomes half
C. It becomes four times greater
D. It remains unchanged
Answer: C. It becomes four times greater
Explanation: Kinetic energy is proportional to v², so doubling velocity
produces four times the kinetic energy.
10. Which unit is used to measure power?
A. Joule
, B. Watt
C. Newton
D. Coulomb
Answer: B. Watt
Explanation: Power is the rate of doing work and is measured in watts.
11. A machine does 600 J of work in 20 seconds. What is its power?
A. 20 W
B. 30 W
C. 40 W
D. 60 W
Answer: B. 30 W
Explanation: Power = work ÷ time = 600 ÷ 20 = 30 W.
12. Which device converts electrical energy into mechanical energy?
A. Generator
B. Electric motor
C. Transformer
D. Cell
Answer: B. Electric motor
Explanation: An electric motor uses electrical energy to produce
mechanical motion.
13. Which device converts mechanical energy into electrical energy?
A. Motor
B. Generator
C. Resistor
D. Capacitor
Answer: B. Generator
Questions | Physics, Chemistry, Mathematics, Biology & Mental
Ability
SECTION I — PHYSICS
Questions 1–60
1. What is the SI unit of force?
A. Joule
B. Newton
C. Pascal
D. Watt
Answer: B. Newton
Explanation: Force is measured in newtons (N), defined as the force
needed to accelerate 1 kg by 1 m/s².
2. Which quantity is a scalar?
A. Velocity
B. Force
C. Speed
D. Displacement
Answer: C. Speed
Explanation: Speed has magnitude only, while velocity, force, and
displacement have both magnitude and direction.
3. A car travels 150 m in 10 seconds. What is its average speed?
A. 10 m/s
B. 15 m/s
C. 20 m/s
D. 25 m/s
,Answer: B. 15 m/s
Explanation: Speed = distance ÷ time = 150 ÷ 10 = 15 m/s.
4. Which law states that an object remains at rest or in uniform
motion unless acted upon by an external force?
A. Newton's First Law
B. Newton's Second Law
C. Newton's Third Law
D. Law of gravitation
Answer: A. Newton's First Law
Explanation: Newton's First Law is also called the law of inertia.
5. What is the acceleration due to gravity near Earth's surface?
A. 4.9 m/s²
B. 8.0 m/s²
C. 9.8 m/s²
D. 12 m/s²
Answer: C. 9.8 m/s²
Explanation: The standard approximate value of gravitational
acceleration near Earth's surface is 9.8 m/s².
6. A 5 kg object experiences an acceleration of 4 m/s². What force acts
on it?
A. 9 N
B. 20 N
C. 25 N
D. 40 N
Answer: B. 20 N
Explanation: From F = ma, F = 5 × 4 = 20 N.
,7. What is the SI unit of work?
A. Watt
B. Newton
C. Joule
D. Pascal
Answer: C. Joule
Explanation: One joule is the work done when a force of one newton
moves an object one metre in the force's direction.
8. Which expression represents kinetic energy?
A. mgh
B. ½mv²
C. Fd
D. Pt
Answer: B. ½mv²
Explanation: Kinetic energy is the energy possessed by an object
because of its motion.
9. What happens to kinetic energy if the velocity of an object is
doubled?
A. It doubles
B. It becomes half
C. It becomes four times greater
D. It remains unchanged
Answer: C. It becomes four times greater
Explanation: Kinetic energy is proportional to v², so doubling velocity
produces four times the kinetic energy.
10. Which unit is used to measure power?
A. Joule
, B. Watt
C. Newton
D. Coulomb
Answer: B. Watt
Explanation: Power is the rate of doing work and is measured in watts.
11. A machine does 600 J of work in 20 seconds. What is its power?
A. 20 W
B. 30 W
C. 40 W
D. 60 W
Answer: B. 30 W
Explanation: Power = work ÷ time = 600 ÷ 20 = 30 W.
12. Which device converts electrical energy into mechanical energy?
A. Generator
B. Electric motor
C. Transformer
D. Cell
Answer: B. Electric motor
Explanation: An electric motor uses electrical energy to produce
mechanical motion.
13. Which device converts mechanical energy into electrical energy?
A. Motor
B. Generator
C. Resistor
D. Capacitor
Answer: B. Generator
