Class 11 Physics Practice Questions

Q1. What is the SI unit of force? ⚡

1. Joule
2. Pascal
3. Watt
4. Newton

Q2. A body is said to be in uniform motion if it covers: ⚡

1. Equal distances in equal intervals of time
2. Equal distances in unequal intervals of time
3. No distance at all
4. Unequal distances in equal intervals of time

Q3. Newton's first law of motion is also known as the law of: ⚡

1. Inertia
2. Gravitation
3. Momentum
4. Energy conservation

Q4. The acceleration of a freely falling body near Earth's surface is approximately: ⚡

1. 9.8 m/s²
2. 8.9 m/s²
3. 10.8 m/s²
4. 6.7 m/s²

Q5. Which thermodynamic law states that energy cannot be created or destroyed? ⚡

1. Zeroth law
2. First law
3. Third law
4. Second law

Q6. What is the unit of velocity? ⚡

1. N·s
2. kg·m/s
3. m/s
4. m/s²

Q7. Which of the following is a scalar quantity? ⚡

1. Speed
2. Velocity
3. Force
4. Displacement

Q8. The second law of thermodynamics is related to: ⚡

1. Entropy and direction of heat flow
2. Thermal equilibrium
3. Conservation of energy
4. Absolute zero temperature

Q9. A projectile is thrown horizontally. What is the horizontal acceleration? ⚡

1. g/2
2. 2g
3. g (downward)
4. Zero

Q10. Action and reaction forces act on: ⚡

1. The same body
2. The ground only
3. Different bodies
4. Only massless objects

Q11. What is the SI unit of force?

1. Newton
2. Joule
3. Watt
4. Pascal

Q12. What is the SI unit of energy?

1. Newton
2. Joule
3. Watt
4. Pascal

Q13. What is the SI unit of power?

1. Joule
2. Newton
3. Watt
4. Pascal

Q14. What is the SI unit of pressure?

1. Newton
2. Joule
3. Watt
4. Pascal

Q15. What is the SI unit of frequency?

1. Hertz
2. Newton
3. Pascal
4. Watt

Q16. What is the SI unit of temperature?

1. Celsius
2. Kelvin
3. Newton
4. Joule

Q17. What is the approximate value of acceleration due to gravity (g) near Earth's surface, in m/s²?

1. 8.9
2. 10.8
3. 9.8
4. 6.8

Q18. 'To every action there is an equal and opposite reaction' is which of Newton's laws?

1. Newton's First Law
2. Newton's Second Law
3. Law of Gravitation
4. Newton's Third Law