Science Checkpoint 2 Review

Front

A student creates an incomplete model showing the stages in the formation of the solar system. Which stage will best complete the student's model?

Back

Particles begin to group together and form a strong gravitational field.

Front

Why is the high tide unusually low when the Sun, the Moon, and Earth are in this configuration?

Back

because gravitational forces of the sun and moon are working against eachother.

Front

Based on the Doppler effect, the electromagnetic waves reaching Earth from a galaxy that is moving away from Earth would be expected to

Back

experience a decrease in frequency

Front

A student graphs the velocities of galaxies as they move away from Earth (1 Mpc=3.26 million light-years). What can be inferred about the galaxies?

Back

The galaxies are moving away from Earth and moving away from each other, increasing the amount of empty space between themselves in the universe.

Front

According to the modern theory of the universe’s origin, which graph BEST shows the trend in the volume of the universe over time?

Back

Front

The charts to the left show sound waves from a musical instrument. In which way is the sound wave in Chart 1 different from the sound wave in Chart 2?

Back

it has a lower frequency

Front

The diagram below shows a student forming waves using a rope. Which statement BEST describes what happens to the wavelength and amplitude of the wave when the student increases the upward and downward force?

Back

The amplitude increases, but the wavelength stays the same.

Front

How does Wave 1 compare to Wave 2?

Back

Wave 1 is louder and lower pitched than Wave 2.

Front

Which diagram BEST represents the reflection of a wave?

Back

Front

Which BEST describes the relationship between the material and the speed of sound as shown in this chart? Options: the denser the material, the faster the speed of sound; the denser the material, the slower the speed of sound; the more opaque the material, the slower the speed of sound; the more transparent the material, the faster the speed of sound

Back

the denser the material, the faster the speed of sound