Speeds up

Slows down

faster

slower

at the same rate

It's for all cases

It's only for objects moving at a constant velocity

It's only for accelerating objects

It's for objects rotating

Objects with speed twice the speed of light.

Objects with speed much greater than the speed of light.

Objects with speed equal to the speed of light

Objects with speed much smaller than the speed of light.

3 x 10^-8m/s

6x10^8 m/s

3x10^8m/s

6x10^-8 m/s

Maxwell's electromagnetic theory proposed that speed of light is not constant.

Newtonian mechanics tells that the speed of light depends on the speed of the observer.

Newtonian mechanics tells that the speed of light is constant.

Maxwell's electromagnetic theory tells that the speed of light depends on the speed of the observer.

Theory of General Relativity

Theory of Universal Gravitation

Theory of Special Relativity

Law of Conservation of Energy

The laws of physics are the same in all inertial frames of reference moving with constant velocity relative to one another.

The speed of light is constant in all inertial frame of reference.

The laws of physics application change based on the condition of the observer.

The speed of light depends on the speed of the observer.

constant linear speed

constant direction

constant linear velocity

constant acceleration

The speed of light is constant.

The speed of light depends on the speed of the observer.

The speed of light depends on its source.

The speed of light is infinite.

Einstein transformation

Maxwell transformation

Lorentz transformation

Galelian transformation

 $\frac{1}{\sqrt{1-\frac{v}{c^2}}}$  

 $\frac{1}{\sqrt{1-\frac{v^2}{c^{ }}}}$  

 $\frac{1}{\sqrt{1-\frac{v^2}{c^2}}}$  

 $\frac{1}{\sqrt{1-\frac{v}{c}}}$  

It states that speed of distant galaxy is inversely related to its distance from earth.

It states that the color of distant galaxy and its distance from earth has an inverse square law relationship.

It states that speed of distant galaxy and its distance from earth has an inverse square law.

It states that the speed of distant galaxy is directly related to its distance from earth.

Distance of galaxies from earth.

Recessional velocities of distant galaxies.

Doppler shift of distant galaxies.

Color of the stars in the distant galaxies.

The universe has no center for its boundaries are beyond reach to be measured.

Milky way is the center of the universe for Hubble observed that everything in the universe is moving away from it.

The universe has no center and everything in it is moving away from each other in all directions.

Andromeda galaxy is the center of the universe for everything in the universe in moving away from it.

The average density of the matter contained by the universe and the distances of the galaxies from earth.

The distance of galaxies from earth and the rate of how fast they move away from earth.

The velocities of the galaxies and the average density of matter contained by the universe.

The average density of matter contained by the universe and the rate at which the universe expands.

A planet that is big and gaseous.

It is also called exoplanets.

All planets in the universe.

A planet that is small and gaseous.

advanced methods

indirect methods

direct methods

simple methods

It is the change in the color of a wave due to the movement of the source.

It is the change in the speed of the wave due to the movement of the source.

It is the change in the distance of a wave due to the movement of the source.

It is the change in the wavelength of a wave due to the movement of the source.

The wavelength is said to be red shifted.

The wavelength is said to be blue shifted.

The wavelength tends to move to the red end of the spectrum.

The wavelength tends to compress producing shorter wavelength.

indirect method

direct method

transit

Doppler Effect

small and gaseous planets

big and gaseous planets only

small planets only

gaeous planets only

Scientists observed those stars which do no have Doppler shifts.

Scientists observed those stars which have red shift only.

Scientists observed whose stars which have blue shift only.

Scientists observed those stars which have blue and red shifts periodically.

Small planets cannot decrease the star's brightness significantly to be observed.

Small planets cause too much change in the parent star's path of orbit.

Small planets are undetectable.

Small planets do not cause significant change in the parent star's path of orbit.

photometry

spectroscopy

parallax

parsec

the distance of the Earth from the nearest galaxy

the distance of the Earth to the nearest planet in the solar system

the distance that the Earth travels in a year

the distance of the Earth from the Sun

The brightness of the star will increase 8 times.

The brightness of the star will decrease 3 times.

The brightness of the star will increase 9 times.

The brightness of the star will decrease 9 times.

Measure of the absolute brightness of a star.

Total amount of energy emitted by a star per unit time.

Measure of the apparent brightness of a star.

Does not depend on the temperature of the star.

the star's brightness decreases proportionally to the square of distance

the star's brightness decreases proportionally when distance is doubled

the star's brightness increases proportionally when the distance is doubled

the star's brightness increases proportionally to the square of distance

No, because its size and mass were not yet known.

No, because it was not mentioned that it orbits the sun.

No, because the reason for it being round was not given,

Yes, because it satisfies the criteria which Pluto failed to have.

Makemake

Ceres

Eris

Haumea

star

asteroid

comet

dwarf planet

The celestial body should be round.

The celestial body should be hundred times heavier than its moon.

The celestial body should be able to clear its path from other celestial bodies.

The celestial body should orbit around the Sun.

Haumea

Ceres

Eris

Makemake

Pluto's orbit around the Sun that is tilted by 17 degrees.

The biggest moon of Pluto, Ceres, is almost half of its mass.

The discovery of bigger and heavier celestial bodies than Pluto.

The orbit of the Pluto around the Sun was elliptical

Parallax

Astronomical Unit

Light years

Doppler Effect

 $\frac{E}{c}$  

 $\sqrt{\frac{E}{c}}$  

 $\frac{E}{c^2}$  

 $\sqrt{\frac{E}{m}}$