Intro to Relativity

A train slowing down as it climbs a hill is an example of an inertial frame of of reference.

• True
• False

A train stopped at a station is an inertial frame of reference.

• True
• False

A train moving with a constant speed is an example of an inertial frame of reference.

• True
• False

When you approach a light source, the light from that source has a speed 

• greater than c. 
• less than c. 
• equal to c.
  

The Michelson–Morley experiment established that

• there is no observable æther wind at the surface of Earth.
• the æther moves at the speed of light, c, as Earth travels in its orbit.
• the æther is an elastic fluid that streams over Earth.
• Earth does not move with respect to the Sun.
• none of these

Tags

NGSS.HS-PS4-3

Which of the following statements about special relativity is FALSE?

• An assumption of special relativity is that the laws of physics are the same in all inertial reference frames.
• An assumption of special relativity is that the speed of light is the same in all reference frames.
• An assumption of special relativity is that space and time are part of the same thing: spacetime.
• An assumption of special relativity is that the laws of the physics are the same in all ‘constant velocity’ reference frames.

Tags

NGSS.HS-PS4-3

What two principles make up the theory of special relativity?

• The principle of nuclear forces and the invariance of the speed of light.
• The constancy of physical laws and the principle of mass-energy conservation.
• The principle of mass-energy conservation and the principle of nuclear forces.
• The constancy of physical laws and the invariance of the speed of light.

The laws of Physics change with your point of view.

• True
• False

We do not usually observe relativistic effects in our daily lives because 

• we are moving at speeds much less than c. 
• we are much larger than atoms. 
• we are much heavier than elementary particles. 
• we are much lighter than stars. 

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

• Newton

• Galileo

• Romer

• Plato