Question 1

A particle with rest mass m moves with speed 0.6c. Its kinetic energy is:

Accepted Answer

A)  0.18mc2 
B)  0.22mc2 
C)  0.25mc2 
D)  mc2 
E)  1.25mc2 
A)  0.18mc2 
B)  0.22mc2 
C)  0.25mc2 
D)  mc2 
E)  1.25mc2

Question 2

Two events occur on the x axis separated in time by $\Delta$t and in space by $\Delta$x. A reference frame, traveling at less than the speed of light, in which the two events occur at the same coordinate:

Accepted Answer

A)  exists no matter what the values of $\Delta$x and $\Delta$t 
B)  exists only if $\Delta$x/$\Delta$t  c 
D)  exists only if $\Delta$x/$\Delta$t = c 
E)  does not exist under any condition 
A)  exists no matter what the values of $\Delta$x and $\Delta$t 
B)  exists only if $\Delta$x/$\Delta$t  c 
D)  exists only if $\Delta$x/$\Delta$t = c 
E)  does not exist under any condition

Question 3

A rocket ship of rest length 100 m is moving at speed 0.8c past a timing device which records the time interval between the passage of the front and back ends of the ship. This time interval is:

Accepted Answer

A)  0.20 $\mu$s 
B)  0.25 $\mu$s 
C)  0.33 $\mu$s 
D)  0.52 $\mu$s 
E)  0.69 $\mu$s 
A)  0.20 $\mu$s 
B)  0.25 $\mu$s 
C)  0.33 $\mu$s 
D)  0.52 $\mu$s 
E)  0.69 $\mu$s

Question 4

A meter stick moves sideways at 0.95c. According to measurements taken in the laboratory, its length is:

Accepted Answer

A)  0 
B)  0.098 m 
C)  0.31 m 
D)  3.2 m 
E)  1.0 m 
A)  0 
B)  0.098 m 
C)  0.31 m 
D)  3.2 m 
E)  1.0 m

Question 5

Two events occur on the x axis separated in time by $\Delta$t and in space by $\Delta$x. A reference frame, traveling at less than the speed of light, in which the two events occur at the same time:

Accepted Answer

A)  exists no matter what the values of $\Delta$x and $\Delta$t 
B)  exists only if $\Delta$x/$\Delta$t  c 
D)  exists only if $\Delta$x/$\Delta$t = c 
E)  does not exist under any condition 
A)  exists no matter what the values of $\Delta$x and $\Delta$t 
B)  exists only if $\Delta$x/$\Delta$t  c 
D)  exists only if $\Delta$x/$\Delta$t = c 
E)  does not exist under any condition

Exam 37: Relativity

A particle with rest mass m moves with speed 0.6c. Its kinetic energy is:

Two events occur on the x axis separated in time by Δ\DeltaΔ t and in space by Δ\DeltaΔ x. A reference frame, traveling at less than the speed of light, in which the two events occur at the same coordinate:

A rocket ship of rest length 100 m is moving at speed 0.8c past a timing device which records the time interval between the passage of the front and back ends of the ship. This time interval is:

A meter stick moves sideways at 0.95c. According to measurements taken in the laboratory, its length is:

Two events occur on the x axis separated in time by Δ\DeltaΔ t and in space by Δ\DeltaΔ x. A reference frame, traveling at less than the speed of light, in which the two events occur at the same time:

Measurement

Motion Along a Straight Line

Vector

Motion in Two and Three Dimensions

Force and Motion I

Force and Motion II

Kinetic Energy and Work

Potential Energy and Conservation of Energy

Center of Mass and Linear Momentum

Rotation

Rolling, Torque, and Angular Momentum

Equilibrium and Elasticity

Gravitation

Fluids

Oscillations

Waves I

Waves II

Temperature, Heat, and the First Law of Thermodynamics

The Kinetic Theory of Gases

Entropy and the Second Law of Thermodynamics

Electric Charge

Electric Fields

Gauss Law

Electric Potential

Capacitance

Current and Resistance

Circuits

Magnetic Fields

Magnetic Fields Due to Currents

Induction and Inductance

Electromagnetic Oscillations and Alternating Current

Maxwells Equations; Magnetism of Matter

Electromagnetic Waves

Images

Interference

Diffraction

Photons and Matter Waves

More About Matter Waves

All About Atoms

Conduction of Electricity in Solids

Nuclear Physics

Energy From the Nucleus

Quarks, Leptons, and the Big Bang

Filters

Two events occur on the x axis separated in time by $\Delta$ t and in space by $\Delta$ x. A reference frame, traveling at less than the speed of light, in which the two events occur at the same coordinate:

Two events occur on the x axis separated in time by $\Delta$ t and in space by $\Delta$ x. A reference frame, traveling at less than the speed of light, in which the two events occur at the same time: