Which of the following statements is true regarding the bending of light around a massive object due to gravity?

• A) Light always travels in a straight line
• B) Light bends towards the massive object.
• C) Light bends away from the massive object.
• D) Light is not affected by gravity.

In special relativity, the factor \gamma is defined as:

• A) {\text{ }}\gamma = \sqrt {1 - {{\left( {{\text{v}}/c} \right)}^2}}
• B) {\text{ }}\gamma = \frac{1}{{\sqrt {1 + {{\left( {{\text{v}}/c} \right)}^2}} }}
• C) {\text{ }}\gamma = 1 - {\left( {{\text{v}}/c} \right)^2}
• D) {\text{ }}\gamma = \frac{1}{{\sqrt {1 - {{\left( {{\text{v}}/c} \right)}^2}} }}

If the kinetic energy of a free particle is much less than its rest energy then its kinetic energy is proportional to:

• A) The magnitude of its momentum
• B) The magnitude of its momentum The square of the magnitude of its momentum
• C) The reciprocal of the magnitude of its momentum
• D) The square root of the magnitude of its momentum

The magnitude of the momentum of a particle can never exceed:

• A) mc, where m is its mass
• B) None of these, but there is an upper limit
• C) E/c, where E is its total energy
• D) K/c, where K is its kinetic energy

In relativistic mechanics, the rest energy E_0 is equal to:

• A) {E_0} = {m_0}{c^2}
• B) {E_0} = \sqrt {\gamma {m_0}{c^2}}
• C) {E_0} = \sqrt {{m_0}{c^2}}
• D) {E_0} = \frac{1}{2}{m_0}{u^2}

Which is the term used to describe the relativistic Doppler effect when the source is moving toward the observer?

• A) Green shift
• B) Violet shift
• C) Red shift
• D) Blue shift

In special relativity, the invariant interval is associated with:

• A) Electromagnetic forces
• B) Spacetime geometry
• C) Gravitational forces
• D) Quantum entanglement

An electron (m=9.11×10-31kg) has a momentum of 4.0×10-22kg•m/s.Its kinetic energy is:

• A) 6.3×10-14J
• B) 1.5×10-13J
• C) 8.2×10-14J
• D) 1.2×10-13J

What is the correct expression for relativistic momentum \vec p ?

• A) \vec p = \sqrt {\gamma m\vec u}
• B) \vec p = \gamma m\vec u
• C) \vec p = \frac{{m\vec u}}{\gamma }
• D) \vec p = m\vec u

If the kinetic energy of a free particle is much greater than its rest energy then its kinetic energy is proportional to:

• A) The reciprocal of the magnitude of its momentum
• B) The square root of the magnitude of its momentum
• C) The magnitude of its momentum
• D) The square of the magnitude of its momentum

An electron is moving at 0.6c.If we calculate its kinetic energy using (1/2) mv2, we get a result that is:

• A) Just half enough
• B) Twice the correct value
• C) About 28% too low
• D) Just right

In special relativity, if the invariant interval is zero, it implies:

• A) The events are lightlike separated
• B) The events are causally disconnected
• C) The events are spacelike separated
• D) The events are timelike separated

The formula \({Q\over t} =kA {ΔT \over L}\) allows us to determine:

• A) Amount of heat transferred over time.
• B) Heat capacity of the material.
• C) Thermal resistance of the material.
• D) Change in temperature due to heat transfer.

In special relativity, what is the term for the minimum energy an object possesses at rest?

• A) Potential energy
• B) Total energy
• C) Rest mass energy
• D) Kinetic energy

In special relativity, the formula for the invariant interval I is given by:

• A) I = {\left( {c\Delta t} \right)^2} + {\left( {\Delta x} \right)^2}
• B) I = {\left( {c\Delta t} \right)^2} - {\left( {\Delta x} \right)^2}
• C) I = {\left( {c\Delta t} \right)^2}
• D) I = \sqrt {{{\left( {c\Delta t} \right)}^2} - {{\left( {\Delta x} \right)}^2}}

In special relativity, the formula for the invariant interval $I$ is given by:

• A) \[I = {\left( {c\Delta t} \right)^2} - {\left( {\Delta x} \right)^2}\]
• B) \[I = {\left( {c\Delta t} \right)^2}\]
• C) \[I = \sqrt {{{\left( {c\Delta t} \right)}^2} - {{\left( {\Delta x} \right)}^2}} \]
• D) \[I = {\left( {c\Delta t} \right)^2} + {\left( {\Delta x} \right)^2}\]

According to relativity theory a particle of mass m with a momentum of 2mc has a speed of:

• A) c/2
• B) 2c
• C) c
• D) 0.89c

What happens to the observed frequency, when an observer approaches a source of light at relativistic speed?

• A) It remains constant
• B) It becomes zero
• C) It decreases
• D) It increases

In special relativity, if the invariant interval is positive, it implies:

• A) The events are simultaneous
• B) The events are timelike separated
• C) The events are lightlike separated
• D) The events are spacelike separated

An electron (m = 9.11×10-31kg, q =1.60×10-19C) travels around a1.7-mm radius circular orbit perpendicular to a 2.8-T magnetic field. Its speed is:

• A) c
• B) 0.16c
• C) 0.94c
• D) 0.36c