IQ4) Special Relativity

How many postulates are there in the special theory of relativity?

• 1
• 2
• 3
• 4

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

• True
• False

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

One of the most startling consequences of time dilation is that a moving clock ______________ relative to a stationary observer.

• Speeds up
• Slows down

If you travel at the speed of light a second can be observed to last forever.

• True
• False

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

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

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

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

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. 

There are two clocks one is stationary on the earth the other is traveling close to the speed of light around the earth. If we put the clocks back together after the second clock makes it back from its trip, the times are compared. What do you expect to occur?

• More time elapsed on the stationary clock

• More time elapsed on the traveling clock

• No time has changed between them