Physics Quizz

The frequency of second's pendulum is:

• 1 Hz

• 0.5 Hz

• 0.2 Hz

• 0.3 Hz

The maximum displacement moved by a vibrating body is called:

• Frequency

• Crest

• Amplitude

• Trough

Which one is a mechanical wave?

• X-rays

• Gamma rays

• Light waves

• Water waves

The speed of sound in vacuum is:

• 0 m/s

• 332 m/s

• 346 m/s

• 340 m/s

The S.I unit of sound intensity is:

• watt

• Square meter

• Watt.m²

• Watt/m²

The causes of echo is:

• Absorption

• Dispersion

• Reflection

• Refraction

Which type of waves cannot travel through a vacuum?

• Sound waves

• Infra-red radiations

• Microwaves

• X-rays

The maximum mass of an atom is concentrated in:

• Nucleus

• Neutrons

• Protons

• Electrons

The symbol denotes the proton number is:

• P

• A

• N

• Z

How many neutrons in ₉₂U²³⁷?

• 143

• 144

• 145

• 146