Physics Quiz

15 questions, easier first and harder toward the end. Pick one answer per question.

1 SI unit of force:

Watt Newton Joule Volt

2 Speed of light in vacuum ≈

3×10⁵ m/s 3×10⁸ m/s 3×10⁶ m/s 3×10¹⁰ m/s

3 SI unit of electric current:

Volt Watt Ampere Ohm

4 Energy of a moving object:

Potential Kinetic Chemical Nuclear

5 Density = ?

Mass × Volume Mass / Volume Volume / Mass Mass + Volume

6 F = ma is Newton's ___ law.

1st 2nd 3rd of gravitation

7 Visible light wavelength range:

100–400 nm 400–700 nm 700–1000 nm 1000–1400 nm

8 g on Earth (surface) ≈

8.9 m/s² 9.8 m/s² 10.8 m/s² 11.8 m/s²

9 Work done lifting 5 kg by 2 m (g = 10 m/s²):

10 J 25 J 50 J 100 J

10 Reciprocal of resistance is called:

Voltage Current Conductance Power

11 Ohm's law: V = ?

I / R IR R / I I²R

12 Mains frequency in Malawi:

40 Hz 50 Hz 60 Hz 100 Hz

13 Lens used to correct short-sightedness:

Convex Concave Bifocal Cylindrical

14 Momentum = ?

mass × acceleration mass × velocity force × time mass × distance

15 Half-life is the time for:

All atoms to decay Half the atoms to decay Twice the atoms to decay No atoms to decay

Cancel