Physics General Knowledge

Answer these physics questions!

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Last updated: May 11, 2025

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Hint	Answer
What is the specific heat capacity of liquid water?	4180 J kg⁻¹ K⁻¹
What is the acceleration of gravity on earth?	9.80 m s⁻¹
When an ambulance is coming towards you, the siren's pitch is observed as higher, but when it is travelling away from you, the pitch becomes lower. What phenomenon is this?	Doppler effect
What is the speed of light?	3 x 10⁸ m s⁻¹
What was the physics principle used in the detonation of "little boy" in hiroshima?	Nuclear fission
In the sun's core, hydrogen atoms undergo nuclear fusion to form ___ atoms and energy.	Helium
What is 0 Kelvin degrees, in degrees Celcius?	-273.15°C
What is the term used for the change in acceleration (m s⁻³)	Jerk

Hint	Answer
What is the name of the nuclide used in determining the age of organic materials up to 60,000 years old?	Carbon-14
What property of that nuclide allows it to do so?	Long half life
What material has the lowest ever measured coefficient of friction?	Teflon
What is the phenomenon that causes the Eiffel tower to appear bigger in the summer than compared to winter?	Thermal expansion
When someone pours water a little over the tip of a cup, it appears that the water stays instead of spilling. What property of liquids allows this?	Surface tension
What law states that opposite charges attract, and like charges repel?	Coulomb's law
What is the name of the transfer of heat energy through direct contact?	Conduction