Fichas
Physics P1 GCSE (OCR)
Fichas del conjunto (46)
- 1How many planets are there?Eight
- 2What orbits around the sun?Earth
Asteroids
Dwarf Planets
Comets - 3What do moons orbit?Planets
- 4Order these by size.... Planets, Moons, The Sun, Comets, Asteroids.The Sun
Planets
Moons
Comets
Asteroids - 5How do the motions of planets, comets, asteroids, the sun, and moons differ?-
- 6How long ago was the solar system formed?Five Thousand Million Years Ago
- 7How was the solar system formed?-
- 8What does a galaxy contain?Thousands of Millions of Stars
- 9Arrange these in order of size... Earth Milky Way to Galaxy The Sun The Solar System The Milky Way The Earth's Orbit Sun to Nearest StarEarth
The Sun
The Earth's Orbit
The Solar System
The Milky Way
Sun to Nearest Star
Milky Way to Galaxy - 10Where does the evidence for the distant stars and galaxies come from?-
- 11What speed does light travel at?300 000 km/s
- 12What is a light year?The distance travelled by light in one year.
- 13How can the distance of a star be measured using parallax?-
- 14How can the distance of a star be estimated from its relative brightness?-
- 15What interferes with observations of the night sky?Light pollution and other atmospheric conditions (eg. clouds).
- 16Why are there uncertainties about the distances of stars and galaxies?-
- 17What is the source of the sun's energy?-
- 18Where were all chemical elements with atoms heavier than helium made?In stars.
- 19What does the redshift in the light coming from galaxies suggest?-
- 20The ________ a galaxy is, the _______ it is moving _______ from us.Further
Faster
Away - 21How does the motion of galaxies suggest that space itself is expanding?-
- 22Order these by age... The Earth The Sun The UniverseThe Universe
The Sun
The Earth - 23How do scientists believe the universe began?With a 'Big Bang'.
- 24Why is the fate of the universe difficult to predict?- Hard to measure large distances involved
- Hard to measure the mass of the universe
- Hard to study the motion of very distant objects - 25How do rocks provide evidence for changes in the Earth?-
- 26What would happen if mountains were not continually being formed?Continents would be worn down to sea level.
- 27How can the rock processes seen today account for past changes?-
- 28How can the age of the Earth be estimated?-
- 29Explain Wegner's theory of continental drift.-
- 30What is the evidence for continental drift?-
- 31How does Wegener's theory account for mountain building?-
- 32Why were Wegener's suggestions rejected at the time?- Movement of continents was not detectable
- Wegener was not a geologist
- Simpler explanations for the same evidence - 33What is seafloor spreading?-
- 34How much do seafloors spread by each year?A few centimeters.
- 35How can the pattern in the magnetisation of seafloor rocks on either side of the oceanic ridges be explained?-
- 36Where do earthquakes, volcanoes, and mountains generally occur?At the edges of tectonic plates.
- 37How does the movement of tectonic plates cause earthquakes, volcanoes, mountains, and contribute to the rock cycle?-
- 38What types of waves do earthquakes produce?P-Waves (Longitudinal)
S-Waves (Transverse) - 39What are the differences between P-Waves and S-Waves?P-Waves travel through solids and liquids. they travel as compressions.
S-Waves travel through solids but not liquids. The material of the Earth moves from side to side as the wave travels along. - 40How can differences between wave speeds and behavior of P-Waves and S-Waves give evidence for the structure of the Earth?-
- 41Label a diagram of the Earth to show its crust, mantle and core.-
- 42What is a wave?A disturbance, caused by a vibrating source, that transfers energy in the direction that the wave travels, without transferring matter.
- 43What is the frequency of waves?The number of waves each second which are made by the source, or that pass through any particular point?
- 44What is the unit for wave frequency?Hertz (Hz)
- 45What is wavelength?The distance between the corresponding points on two adjacent cycles.
- 46What is amplitude?The distance from the maximum displacement to the undisturbed position.
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- GCSE Physics Fichas sobre Physics P1 GCSE (OCR), creado por Usman Rauf el 16/04/2015.
- Creado por
- Usman Rauf
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- Creado por Josh Price · 16 abr 2015
- Copiado por Usman Rauf · 16 abr 2015
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