Relativistic Velocity Addition

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

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

• True
• False

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

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

Tags

NGSS.HS-PS2-2

What does the relativity of simultaneity say?

• Two events may occur at the same time in one reference frame, but not another.
• If two events occur at the same time in one reference frame, they will occur at the same time in all reference frames.

Mr Drucker is riding in a x-wing fling at 0.75c towards the Death Star. He shoots a laser ahead of him. At what velocity does he see the laser move away from him?

• 0.75c

• 1.75c

• c

• Not enough information is given

Mr Drucker is riding in a x-wing fling at 0.75c towards the Death Star. He shoots a laser ahead of him. At what velocity does the officer in the death star, looking out the bathroom window, see the laser moving towards him?

• 0.75c

• 1.75c

• c

• Not enough information is given

Tags

NGSS.HS-PS4-3

Sky Captain Drucker, leader of the Brainiacs space football team, is riding on his rocket traveling 0.8c. He throws the football towards the front of the ship at 0.6c. What speed would an outside observer, at rest, measure for the football?

• 0.92c

• 0.85c

• 1.40c

• 0.90c

• 0.95c

What would be the best estimate for the speed of a missile, measured by an observer at rest if it is shot by a rocket moving at 0.50c, and the crew of the rocket measures the missile's velocity as 0.60c

• 0.85c

• c

• 0.55c

• 1.10c