General relativity

Which of the following is not a consequence of special relativity?

• Moving objects appear shorter in length (thinner) than stationary objects.
• Time appears to move at a different rate for objects moving relative to each other.
• Mass and energy are the same thing: if you increase an object’s energy, you also increase its mass.
• Nothing is certain; everything is relative.

An object with a nonzero rest mass moving at the speed of light would have

• no momentum.

• time pass at an infinitely fast rate

• infinite volume

• infinite apparent mass

The speed of light (c) =

• 3 x 10⁸ miles/hour
• 3 x 10⁸ meters/second
• 3 x 10⁸ kilometers/hour
• none of these

A spaceship, moving away from the Earth at a speed of 0.9c, fires a light beam backward. An observer on Earth would see the light arriving at a speed of

• 1.9c

• 0.1 c

• c

• more than 0.1c but less than c

We experience Einstein's Theory of Relativity in our everyday life when we use

• Global Positioning System
• Microwave ovens.
• Toasters
• Graphing Calculators

A postulate is something that is accepted as true at the beginning of a logical article.

• True
• False

E=MC² is a formula that...

• describes how mass warps spacetime

• describes the relationship between acceleration and gravitational pull

• describes mass and energy as different manifestations of the same thing (like 2 sides of a coin)

• describes the relationship between the event horizon and the singularity of a black hole

The speed of light is constant in all frames of reference.

• True
• False

General Relativity combines

• Matter and Energy

• Space and Time

• Particles and forces

• Particles and waves

What astronomer was the firs to nail down a concrete measure of the speed of light?

• Newton

• Galileo

• Romer

• Plato