Q1) The SI unit of electric current is:

A) Ampere

B) Coulomb

C) Ohm

D) Volt

Q2) The study of motion without considering its cause is called:

A) Dynamics

B) Kinematics

C) Thermodynamics

D) Statics

Q3) The acceleration due to gravity on the surface of the Earth is approximately:

A) 9.8 m/s²

B) 5.0 m/s²

C) 2.0 m/s²

D) 6.0 m/s²

Q4) What is the SI unit of energy?

A) Joule

B) Newton

C) Watt

D) Kilogram

Q5) The branch of physics that deals with the behavior of very small particles is called:

A) Quantum mechanics

B) Classical mechanics

C) Thermodynamics

D) Electrodynamics

Q6) Which of the following is not a fundamental quantity?

A) Mass

B) Length

C) Time

D) Volume

Q7) The prefix "kilo" in the metric system denotes:

A) 10^3

B) 10^6

C) 10^9

D) 10^-3

Q8) What is the formula for density?

A) Density = Mass × Volume

B) Density = Volume / Mass

C) Density = Mass / Volume

D) Density = Force / Area

Q9) The instrument used to measure atmospheric pressure is called:

A) Barometer

B) Thermometer

C) Hygrometer

D) Manometer

Q10) Which of the following is a vector quantity?

A) Mass

B) Temperature

C) Velocity

D) Energy

Q11) The speed of light in a vacuum is approximately:

A) 3 × 10^8 m/s

B) 3 × 10^6 m/s

C) 3 × 10^10 m/s

D) 3 × 10^4 m/s

Q12) What is the SI unit of power?

A) Watt

B) Joule

C) Newton

D) Ampere

Q13) The quantity 0.00345 kg can be written in scientific notation as:

A) 3.45 × 10^3 kg

B) 3.45 × 10^-3 kg

C) 3.45 × 10^6 kg

D) 3.45 × 10^-6 kg

Q14) Which of the following statements is true regarding significant figures?

A) Zeros between non-zero digits are not significant.

B) Zeros at the beginning of a number are significant.

C) Zeros at the end of a number after a decimal point are not significant.

D) All digits in a measurement are considered significant.

Q15) Which of the following is a derived unit?

A) Meter

B) Second

C) Kilogram

D) Newton

Q16) The conversion factor for converting Celsius to Kelvin temperature scale is:

A) 273.15

B) 100

C) 32

D) 1.8

Q17) Which of the following is the correct symbol for the unit "meter"?

A) m

B) km

C) cm

D) mm

Q18) The acceleration of an object in free fall near the surface of the Earth is approximately:

A) 9.8 m/s

B) 9.8 m/s²

C) 9.8 km/s²

D) 98 m/s²

Q19) The force of gravity acting on an object is also known as:

A) Tension

B) Friction

C) Weight

D) Normal force

Q20) The time taken for a pendulum to complete one full oscillation is called its:

A) Amplitude

B) Frequency

C) Period

D) Wavelength