1. Question: Which of the following equations represents Newton's second law of motion?
A) F=ma
B) F=m/g
C) F=m/a
D) F=mg/a
Answer: A) F=ma
2. Question: Which of the following is a scalar quantity?
A) Force
B) Velocity
C) Acceleration
D) Distance
Answer: D) Distance
3. Question: An object is undergoing uniform circular motion. Which of the following statements is true regarding its acceleration?
A) It is zero.
B) It is directed radially inward.
C) It is directed tangentially to the motion.
D) It is directed radially outward.
Answer: B) It is directed radially inward.
4. Question: What is the SI unit of electric charge?
A) Volt
B) Ampere
C) Coulomb
D) Tesla
Answer: C) Coulomb
5. Question: Which of the following electromagnetic waves has the highest frequency?
A) Infrared
B) X-rays
C) Radio waves
D) Microwaves
Answer: B) X-rays
6. Question:  According to Ohm's law, what is the relationship between voltage (V), current (I), and resistance (R) in a circuit?
A) V=IR
B) I=VR
C) R=VI
D) I=V/R
Answer: A) V=IR
7. Question: The phenomenon of total internal reflection is associated with which of the following?
A) Sound waves
B) Light waves
C) X-rays
D) Gamma rays
Answer: B) Light waves
8. Question: What is the SI unit of power?
A) Joule
B) Watt
C) Volt
D) Ampere
Answer: B) Watt
9. Question: Which of the following statements about a concave mirror is correct?
A) It always forms an inverted image.
B) It always forms a virtual image.
C) It can form both real and virtual images depending on the object's position.
D) It cannot form images.
Answer: C) It can form both real and virtual images depending on the object's position.
10. Question: Which of the following statements about nuclear fusion is true?
A) It releases energy by combining small nuclei into larger ones.
B) It releases energy by splitting large nuclei into smaller ones.
C) It occurs only in stars and not on Earth.
D) It does not involve any release of energy.
Answer: A) It releases energy by combining small nuclei into larger ones.