Semester Quizziz

4. Which of these statements correctly describes a benefit of ozone to people?

• A. It clears harmful pollutants from the air.
• B. It enhances the skin’s production of vitamin D.
• C. It decreases the chance of developing skin cancer.
• D. It decreases the probability of developing respiratory problems.

1. What Doppler shift would an astronomer notice for the spectral light from a galaxy moving away from Earth?

• lower frequency and longer wavelengths
• higher frequency and longer wavelengths
• lower frequency and shorter wavelengths
• higher frequency and shorter wavelengths

2. What distinguishes isotopes of the same element?

• Number of protons
• Number of electrons
• Number of neutrons
• Atomic mass

3. What is the main advantage of using geothermal energy?

• A. It is abundant everywhere
• B. It has low emissions
• C. It is the cheapest form of energy
• D. It requires no technology

1. Which of these separates the outer planets from the inner planets?

• a. The Kuiper Belt
• b. The asteroid belt
• c. The Great Red Spot
• d. A large magnetic field

8. Which law describes the speed at which objects travel at different points in their orbits?

• a. Law of ellipses
• b. Law of periods
• c. Law of eccentricity
• d. Law of equal areas

10. Kepler’s third law describes the relationship between the average distance of a planet from the sun and which property of the planet’s motion?

• a. Inertia
• b. Orbital period
• c. Gravitational pull
• d. Average temperature

13. According to Kepler’s first law, the orbit of a planet is an ellipse with what object at or near the focus?

• a. Its star
• b. Its moon
• c. Its center
• d. The galactic center

19. Assuming other factors remained unchanged, what would happen to the surface temperature on Earth if Large amounts of carbon dioxide were removed from the atmosphere?

• a. Surface temperatures would increase
• b. Surface temperatures would decrease
• c. There would be no change in surface temperatures
• d. Surface temperatures would increase in the Northern Hemisphere but
• decrease in the Southern Hemisphere

26.What do the forces of gravity between Earth and the moon cause?

• a. Orbits
• b. Tides
• c. Waning
• d. Eclipses