Special Relativity Introduction: Time and Motion

The muon detection experiment helped confirm one aspect of special relativity, namely that:

• to a muon distance was contracted.

• muons are created in the upper atmosphere.

• muons are relatively short-lived.

• fewer muons reach the ground than expected.

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

Tags

NGSS.HS-PS2-2

The laws of Physics change with your point of view.

• True
• False

Tags

NGSS.HS-PS4-3

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

• True
• False

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

• 1
• 2
• 3
• 4

The two postulates of special relativity are:

• The laws of physics are the same in all inertial frames of reference.

• The laws of physics are the same in all non-inertial frames of reference.

• The speed of light in a vacuum is c in all inertial frames of reference.

• The speed of light in a vacuum is c unless in an inertial frame of reference.

Newtonian Physics does not explain...

• The lifetime of muons.

• Light being able to travel through a vacuum.

• Impulse and momentum.

• Space and time.

The speed of light (c) =

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

Tags

NGSS.HS-PS4-1

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

• True
• False