GCSE SCIENCE PHYSICS HIGH SCHOOL - Revision Questions - Solar System - Planets - Moon - Satellite - Comet - Stars - Galaxy - Universe - Big Bang - Red-Shift

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Solar System - Time
1	What is the Solar System?	Answer
2	What is the Sun?	Answer
3	How many Planets are there?	Answer
4	Which Force governs the Movement of Planets?	Answer
5	Is there more than one Solar System?	Answer
6	What is Space?	Answer
7	What is one Day?	Answer
8	What is one Year?	Answer
9	What is a Leap Year?	Answer

The Planets
10	What is a Planet?	Answer
11	Do Planets give out Light?	Answer
12	Is the Orbit of a Planet Circular?	Answer
13	Give the names of all of the Planets from Mercury to Pluto.	Answer
14	Which Planet is Closest to the Sun?	Answer
15	What are the Inner Planets made from?	Answer
16	Between which two Planets is there a Belt of Asteroids?	Answer
17	What are the Outer Planets made from?	Answer
18	What is an Orbit?	Answer
19	In which Direction does Gravity Pull the Earth?	Answer
20	Why does the Earth move in a Circle around the Sun?	Answer
21	A Force which keeps an Object moving in a Circle is called what?	Answer
22	Does a Planet with a Small Orbit move Faster than a Planet with a Large Orbit?	Answer
23	What are the Minor Planets?	Answer
24	What is a Meteor?	Answer
25	What is a Shooting Star?	Answer
26	What is a Meteorite?	Answer

The Moon - Satellites - Comets
27	What is a Satellite?	Answer
28	What is the Difference between a Natural and an Artificial Satellite?	Answer
29	What is a Natural Satellite of a Planet called?	Answer
30	What is the Moon?	Answer
31	Does the Moon have Less Gravity than the Earth?	Answer
32	What does Geostationary mean?	Answer
33	What can a Geostationary Satellite be Used for?	Answer
34	Why are all Geostationary Satellites at the Same Height above the Earth?	Answer
35	Describe a Polar Orbit.	Answer
36	What can a Satellite in a Polar Orbit be Used for?	Answer
37	What does a Comet Orbit?	Answer
38	What is the Shape of a Comet's Orbit?	Answer
39	When is a Comet travelling at its Fastest?	Answer
40	When is a Comet travelling at its Slowest?	Answer
41	When does a Comet have its Maximum Gravitational Potential Energy?	Answer
42	What is a Comet made from?	Answer
43	Which way does a Comet's Tail Always Point?	Answer

Stars - Life Cycle - Galaxies
44	What are Constellations?	Answer
45	Is the Sun a Star?	Answer
46	Is the Sun Bigger than the Earth?	Answer
47	What is a Star made from?	Answer
48	What is a Protostar?	Answer
49	Why do Hydrogen Atoms Accelerate in a Protostar?	Answer
50	What type of Reaction is Fusion?	Answer
51	What Element is made in the main Fusion Reaction in Stars?	Answer
52	Why must Protons be moving Very Fast for Fusion to happen?	Answer
53	Does Fusion release Large Amounts of Energy?	Answer
54	Where does the Energy released by Fusion come from?	Answer
55	What is the Evidence that the Sun formed from a previous Supernova?	Answer
56	What are the two Opposing Forces in a Main Sequence Star?	Answer
57	What does the length of time a Star lasts as a Main Sequence Star depend on?	Answer
58	Is a Red Giant Bigger than the Main Sequence Star it came from?	Answer
59	Is a Red Giant Hotter than the Main Sequence Star it came from?	Answer
60	Does a White Dwarf have Nuclear Reactions?	Answer
61	What does a White Dwarf become after it Loses Energy?	Answer
62	Can a Large Star become a Supernova?	Answer
63	Is a Supernova Bright?	Answer
64	What is a Neutron Star made from?	Answer
65	What is a Black Hole?	Answer
66	What is a Galaxy made from?	Answer
67	What is the Galaxy which contains the Sun called?	Answer
68	Are there more than a Thousand Galaxies in the Universe?	Answer

The Universe - Big Bang - Red-Shift
69	What is the Universe?	Answer
70	What did the Steady-State Theory say?	Answer
71	What does the Big Bang Theory say?	Answer
72	What is the Evidence for the Big Bang Theory?	Answer
73	What is Red-Shift?	Answer
74	How does the Red-Shift of a Galaxy depend on its Distance from the Earth?	Answer
75	What does a Red-Shift mean?	Answer
76	Do Galaxies move Very Fast or Very Slow?	Answer
77	What Evidence is there that the Universe is Expanding?	Answer
78	What has an Expanding Universe got to do with the Big Bang?	Answer
79	What does the Final Fate of the Universe depend on?	Answer
80	What does Extraterrestrial mean?	Answer
81	Give one Method which Scientists use to look for Life on other Planets.	Answer