Q.1
True or false: Gravity is a property of spacetime.
*
True
False
Q.2
Which of the following discoveries was the first proof of special relativity?
*
Neutron stars lose energy through gravitational waves
The sun’s gravity bends starlight
The speed of light is constant
Q.3
In 2011, Gravity Probe B’s gyroscopes proved:
*
the existence of frame-dragging
immense gravitation bends light like a lens
the geodetic effect
Earth’s mass causes spacetime to drag
Q.4
A scientific theory is proven by:
*
Failing to disprove it experimentally
Repeating the experiment to see if it produces the same results
Years of experiments that fail to prove competing theories
A theory can’t be proven
Q.5
Which of the following mistakes did Einstein call his “greatest blunder”?
*
Rejecting the existence of black holes
Denying the role of chance in physics, especially quantum theory
Proposing a "cosmological constant" to explain why the universe is not expanding