Einsteins special relativity and mass energy equivalence

Question 1

Frame of reference

Answer 1

set of coordinates to measure the relative location of an object

Question 2

Inertial frame of reference

Answer 2

a non-accelerating set of coordinates to measure the relative location of an object (frame of reference).

Question 3

What is the speed of light

Answer 3

3x10⁸

Question 4

Relativity and its predictions of Physics

Answer 4

Special relativity makes different predictions to classical physics.

– Space and time are not absolute.

– Relative speeds are not additive and cannot exceed c.

– Kinetic energy approaches infinity as the speed of an object approaches c

Question 5

Contracted length

Answer 5

Contracted length the length of an object measured in a reference frame where the object is moving; this length is always shorter than the proper length

Question 6

Dilated time

Answer 6

Dilated time is the time interval between two events measured in a reference frame where the two events occur at different points in space; this time is always greater than the proper time between the events

Question 7

Proper length

Answer 7

Proper length the length of an object measured in a reference frame where the object is at rest

Question 8

Proper time

Answer 8

Proper time the time interval between two events measured in a reference frame where the two events occur at the same point in space

Question 9

The Lorenz factor (γ) and its formula

Answer 9

Question 10

Rearrange Lorenz factor to find the velocity

Answer 10

Question 11

The relationship between proper and contracted length with given formula

Answer 11

Question 12

The relationship between proper and dilated time and its given formula

Answer 12