Daytime temperatures of 30 °C or higher are commonplace. Ottawa averages many days with humidex between 30 °C and 40 °C annually. Snow and ice are dominant during the winter season. Ottawa receives about 224 centimetres of snowfall annually. Days above freezing and nights below −20 °C both occur in the winter.
Phenomena on the Sun’s surface | 1. Prominences, solar flares and sunspots are examples of phenomena that occur on the surface of the sun. 2. These phenomena are believed to occur because of the changes in the magnetic field of the sun. Prominences 1.
Name: Date: Period: 1. are natural or artificial bodies that revolve around more massive bodies such as planets. (Satellites or Comets) 2. Most lunar craters are the result of . (volcanoes or impacts) 3. The time it takes for Earth to around the sun is 1 year.
EXERCISE 10 PROBLEMS – PART I The following questions are based on the maps of average January sea-level temperatures (Figure 10-1) and average July sea-level temperatures (Figure 10-2): 1. Is the temperature contrast between the equator and the Arctic region greatest in the winter or summer? Temperature contrast between the equator and the Arctic region is greatest in the winter. Temperatures near or at the equator only change a few degrees between winter and summer, while the Arctic region changes up to 40 degrees between the seasons. 2.
http://solarsystem.nasa.gov/planets/ http://solarsystem.nasa.gov/planets/profile.cfm?Object=SolarSys&Display=Moons http://solarsystem.nasa.gov/planets/profile.cfm?Display=Moons http://nasa.gov use search window to search for topics http://www.go-astronomy.com/planets/planet-moons.htm http://messenger.jhuapl.edu/ http://nineplanets.org/ |What is the hottest planet in our solar system? |Venus | |Which planet has the most
Sometimes in binary systems, mass flows into a hot accretion disk around the neutron star and causes the emission of x rays. 14. Astronomers have found compacted objects
Science Physics Core science questions and answers- Topic 1- The solar system- 1. What is a geocentric model? It is a model with the earth at the centre. 2. Describe two differences between ptolemy’s and Copernicus’s models- What is at the centre of the model and the way in which the planets followed smaller circles in their orbits in ptolemy’s model.
bfly_recent.gifFrom the research, sunspots do not appear at random over the surface of the sun but are concentrated in two latitude bands on either side of the equator. The sunspots are greatly related to our climate. While the solar cycle has been nearly regular during the last 300 years, there was a period of 70 years during the 17th and 18th centuries when very few sunspots were seen (even though telescopes were widely used). This drop in sunspot number coincided with the timing of the little ice age in Europe, implying a Sun- to-climate connection. limb_flare_sm.jpg (5710 bytes)Solar flares are tremendous explosions on the surface of the Sun.
7. A molecule of water will stay in Earth’s atmosphere for an average duration of 10-12 days. 8. Snowflakes falling at 2-4 mph can take about 1 hr to reach the ground. 9.
Physical size = angular size x 2 x distance / 360 • Understand that constellations are groups of stars as seen from the Earth – the stars may not be close to each other at all • Our view of the celestial sphere is determined by where we stand on the Earth o Study the diagrams that show the path of stars as they rise and set and how those paths appear to differ depending on your location on the Earth • Know what causes the seasons (tilt of the Earth’s axis to it’s orbital plane) o Depend on how Earth’s axis affects the directness of sunlight o Sun’s altitude is also higher in Summer and Lower in Winter Summer solstice – highest path Winter solstice – lowest path Equinoxes – sun rises at exactly due east and sets exactly due west • Review the Moon’s phases • New Moon • Waxing (Right side of moon visible) o Waxing