Questions
- What is the term for the force that opposes the relative motion of two surfaces in contact?
a) Gravity
b) Friction
c) Magnetism
d) Inertia - Which fundamental force is responsible for holding the nucleus of an atom together?
a) Electromagnetic force
b) Strong nuclear force
c) Weak nuclear force
d) Gravity - What is the speed of light in a vacuum?
a) 300,000 km/s
b) 150,000 km/s
c) 1,000 km/s
d) 30,000 km/s - Who is famous for formulating the law of universal gravitation?
a) Albert Einstein
b) Isaac Newton
c) Galileo Galilei
d) Nikola Tesla - Which physical quantity measures the amount of matter in an object?
a) Weight
b) Mass
c) Volume
d) Density - What is the name of the phenomenon where a wave changes direction as it passes from one medium to another?
a) Reflection
b) Refraction
c) Diffraction
d) Dispersion - In physics, what does E=mc² represent?
a) The relationship between energy and momentum
b) The relationship between energy and mass
c) The formula for kinetic energy
d) The law of conservation of energy - Which particle is known as the “force carrier” for electromagnetic interactions?
a) Proton
b) Electron
c) Photon
d) Neutron - What is the principle stating that energy cannot be created or destroyed, only transformed?
a) Law of conservation of energy
b) Newton’s third law
c) Heisenberg uncertainty principle
d) Law of entropy - Which concept explains why objects tend to stay at rest or keep moving at a constant velocity unless acted upon by an external force?
a) Inertia
b) Momentum
c) Acceleration
d) Force
Answers:
- b) Friction
- b) Strong nuclear force
- a) 300,000 km/s
- b) Isaac Newton
- b) Mass
- b) Refraction
- b) The relationship between energy and mass
- c) Photon
- a) Law of conservation of energy
- a) Inertia