1.
State what is meant by the standard model. [1]
JD SCIENCE
Particles and radiation
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 a hadron. [1]
3.
State what is meant by the photoelectric effect. [1]
4.
State what is meant by wave-particle duality. [1]
5.
State what is meant by annihilation. [1]
6.
State what is meant by pair production. [1]
7.
State what is meant by the electronvolt. [1]
8.
State what is meant by a Feynman diagram. [1]
9.
State what is meant by beta-minus decay. [1]
10.
State what is meant by specific charge. [1]
11.
Amira is asked about the standard model in a AQA Physics paper.
(a) Describe the standard model. [2]
(b) Explain why the standard model is important in this topic. [3]
12.
Amira is asked about a hadron in a AQA Physics paper.
(a) Describe a hadron. [2]
(b) Explain why a hadron is important in this topic. [3]
13.
Amira is asked about the photoelectric effect in a AQA Physics paper.
(a) Describe the photoelectric effect. [2]
(b) Explain why the photoelectric effect is important in this topic. [3]
14.
Amira is asked about wave-particle duality in a AQA Physics paper.
(a) Describe wave-particle duality. [2]
(b) Explain why wave-particle duality is important in this topic. [3]
15.
Amira is asked about annihilation in a AQA Physics paper.
(a) Describe annihilation. [2]
(b) Explain why annihilation is important in this topic. [3]
16.
Amira is asked about pair production in a AQA Physics paper.
(a) Describe pair production. [2]
(b) Explain why pair production is important in this topic. [3]
17.
E = hf. f=5.0×10¹⁴, h=6.63×10⁻³⁴ [3]
18.
φ = 2.0 eV. f₀ = φ/h [3]
19.
λ = h/mv. m=9.1×10⁻³¹, v=2.0×10⁶ [3]
20.
2mc² for electron (0.511 MeV) [3]
21.
Quark composition of a neutron [3]
22.
Charge of a uud proton in e [3]
23.
Amira carries out a AQA-style required practical linked to particles and radiation. This is a typical AQA 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.
Amira carries out collecting valid data for particles and radiation. This is a typical AQA 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.
Amira carries out drawing a graph for particles and radiation. This is a typical AQA 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.
Amira carries out evaluating a method about particles and radiation. This is a typical AQA 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 the standard model with a hadron. [4]
28.
Compare a hadron with the photoelectric effect. [4]
29.
Compare the photoelectric effect with wave-particle duality. [4]
30.
Compare wave-particle duality with annihilation. [4]
31.
Apply your knowledge of the electronvolt to this situation: convenient energy unit [3]
32.
Apply your knowledge of a Feynman diagram to this situation: EM: virtual photon; weak: W± [3]