1.
State what is meant by a galaxy. [1]
JD SCIENCE
Space
Answer all questions. Show working. Answers are in a separate file on the Worksheets page — do not look at them until you have finished.
2.
State what is meant by the solar system. [1]
3.
State what is meant by fusion in stars. [1]
4.
State what is meant by the life cycle of a star like the Sun. [1]
5.
State what is meant by red-shift. [1]
6.
State what is meant by the Big Bang. [1]
7.
State what is meant by CMB. [1]
8.
State what is meant by orbital motion. [1]
9.
State what is meant by weight on other planets. [1]
10.
State what is meant by a satellite. [1]
11.
Owain is asked about a galaxy in a WJEC Physics paper.
(a) Describe a galaxy. [2]
(b) Explain why a galaxy is important in this topic. [3]
12.
Owain is asked about the solar system in a WJEC Physics paper.
(a) Describe the solar system. [2]
(b) Explain why the solar system is important in this topic. [3]
13.
Owain is asked about fusion in stars in a WJEC Physics paper.
(a) Describe fusion in stars. [2]
(b) Explain why fusion in stars is important in this topic. [3]
14.
Owain is asked about the life cycle of a star like the Sun in a WJEC Physics paper.
(a) Describe the life cycle of a star like the Sun. [2]
(b) Explain why the life cycle of a star like the Sun is important in this topic. [3]
15.
Owain is asked about red-shift in a WJEC Physics paper.
(a) Describe red-shift. [2]
(b) Explain why red-shift is important in this topic. [3]
16.
Owain is asked about the Big Bang in a WJEC Physics paper.
(a) Describe the Big Bang. [2]
(b) Explain why the Big Bang is important in this topic. [3]
17.
W on Earth 600 N, g=10. Mass [3]
18.
Weight on a planet where g=4 N/kg for that mass [3]
19.
A radio signal travels 3×10⁸ m/s. Time to a probe 3×10¹¹ m away [3]
20.
Orbital speed 2000 m/s, radius 4.0×10⁶ m. Period T=2πr/v (leave in terms of π) [3]
21.
A star is 8 light-minutes away. Distance in light-seconds [3]
22.
Red-shift: λ increases from 400 nm to 440 nm. Δλ/λ [3]
23.
Owain carries out a WJEC-style required practical linked to space physics. This is a typical WJEC required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
24.
Owain carries out collecting valid data for space physics. This is a typical WJEC required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
25.
Owain carries out drawing a graph for space physics. This is a typical WJEC required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
26.
Owain carries out evaluating a method about space physics. This is a typical WJEC required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
27.
Compare a galaxy with the solar system. [4]
28.
Compare the solar system with fusion in stars. [4]
29.
Compare fusion in stars with the life cycle of a star like the Sun. [4]
30.
Compare the life cycle of a star like the Sun with red-shift. [4]
31.
Apply your knowledge of CMB to this situation: leftover radiation from the early universe [3]
32.
Apply your knowledge of orbital motion to this situation: closer orbits are faster [3]