Clicker Questions

the filter diffracts red light and reflects other colors

the filter absorbs red light and emits other colors

the filter emits red light and absorbs other colors

the filter reflects red light and transmits other colors

the filter transmits red light and absorbs other colors

occurs when the moon is new

occurs when the sun goes between the earth and the moon

occurs when the moon goes between the earth and the sun

occurs when the shadow of the earth blocks the sunlight hitting the moon

occurs twice every year

Elliptical galaxies are characterized by higher rates of ongoing star formation than spiral galaxies.

Rapid star formation means that there may not be enough gas left to make a disk.

Stars that form early in a galaxy’s history tend to have orbits with more random inclinations.

shape

motion

diffraction lines

pattern of emission and/or absorption lines

color due to its temperature

Both vehicles experience an equal and opposite change in velocity

both vehicles experience an equal and opposite acceleration (or deceleration)

Both vehicles experience an equal and opposite force

All these answers

Boiling water

a banana

sunlight

radio waves emitted from a tower

a battery

a rocky planet with craters and mountains, proving Venus was similar to Earth

only crescent and new phases, proving Venus rotates on a sphere between the Earth and the sun

only the full phase proving Venus is farther from the sun than the Earth

all phases, proving Venus orbits around the Sun, not Earth

all phases, proving Venus orbits around the Earth like the moon

a measure of the momentum of an object, which depends on mass and velocity

also a measure of the quantity of matter

a measure of the number of atoms in an object

a measure of the inertia of an object, or its resistance to changing velocity

a measure of force that depends on mass and acceleration, such as the due to gravity

waning gibbous

it is impossible to say since the moon will have set

third quarter

full

waxing gibbous

make it possible for telescopes in space to remain aligned with their targets while they orbit earth

makes it possible to add cameras and spectrographs on older telescopes

uses electronic detectors to create digital images of objects in space

uses electronic detectors to create digital images of objects in space

use a deform-able mirror to correct distotions caused by the atmosphere

22%

18%

20%

10%

25%

Stars in the outer edges of our galaxy move faster than expected

Larger amounts of matter can be seen at infrared wavelength

Larger amounts of matter can be seen at radio wavelength

Larger amounts of matter can be seen at x-ray wavelength

Stars in the outer edges of our galaxy move slower than expected

have more extreme winter weather than earth

have a shorter year than earth

have a longer day compared to earth

take longer to go around the sun than earth

not have any tides, if it has oceans

The collision will cause stars that were on circular orbits to change to elliptical orbits.

The loss of gas will cause the galaxy to start rotating faster.

A galaxy cannot have a disk if it does not have gas.

The collision will disrupt the orbits of stars in the galaxy’s halo.

Low-mass stars

Relatively old objects

Relatively young object

Metal-poor stars

Population ll stars

two times smaller than the closer moon

four times smaller than the closer moon

exactly the same as the closer moon

four times larger than the closer moon

two times larger than the closer moon

Galileo

Ptolemy

Kepler

Tycho Brahe

Aristotle

planets move more quickly when closer to the sun

the is at the center of the solar system, not the earth

planets move more slowly when close to the sun

the force of gravity is the same everywhere in the universe

force equals mass times acceleration

It will move into a smaller orbit and move more quickly

It will continue to travel in the same orbit, but moving faster.

It will move into a larger orbit that is farther out and move more slowly.

It will move into a larger orbit that is farther out and move more quickly

Its orbit will not change

Obsolete

Galilean telescopes

Refractor telescopes

Reflector telescopes

radio waves

infrared light

x-rays

ultraviolet light

optical light

the law of gravity

Newton's third law

conservation of energy

Conservation of angular momentum

Spiral arms rotate like giant pinwheels, and therefore they need to rotate very fast.

Faster rotation leads to collisions among gas particles that cause the gas to settle into a spinning disk, rather than a more spread out cloud.

Stars in spiral galaxies orbit the galactic center faster than stars in elliptical galaxies.

Individual stars in spiral galaxies rotate faster than those in elliptical galaxies.

light is composed of electrons

light is generated by oscillating electric fields

light is generated by objects

photons have a strong electric charge

light is composed of electrons and magnetons