Which of these sub-atomic particles is NOT found in the nucleus?
Electron
1 of 25
What is the name of the process in which nuclei come together?
Nuclear Fusion
2 of 25
How far can beta radiation travel through air?
A few tens of centimetres
3 of 25
Which type of radiation needs many centimetres of lead to stop it?
Gamma radiation
4 of 25
Which type of radiation cannot penetrate through a sheet of paper?
Alpha radiation
5 of 25
What kind of radiation is given of naturally by the environment?
Background radiation
6 of 25
What are Isotopes?
Isotopes are atoms of an element that have different mass numbers, because they have different numbers of neutrons in the nucleus
7 of 25
What is Einsteins equation, which is used to calculate the energy released during nuclear fusion reactions?
E = mc2
8 of 25
What is an Alpha particle?
Two protons and two neutrons - the same as a helium nucleus
9 of 25
What is a Beta particle?
A fast-moving electron
10 of 25
What is a Gamma ray?
High energy electromagnetic radiation
11 of 25
What is radioactive decay?
The nuclei of radioactive atoms are unstable. They break down into a completely different type of atom
12 of 25
What are the two definitions of a half - life?
The time it takes for the number of atoms in a sample to half / The time it takes for the activity of a source of radiation to fall to half it's starting level
13 of 25
What is the radiation that reaches the Earth from outer space?
Cosmic Rays
14 of 25
What type of gas do some rocks give off?
Radon Gas
15 of 25
What damage is caused by irradiation?
Damage the cells of the person directly
16 of 25
What two ways is radiotherapy administered?
From outside the body using x-rays or the radiation from radioactive cobalt / From inside the body by putting radioactive materials into the tumour, or close to it
17 of 25
Who may be exposed to radiation on a regular basis?
Medical staff such as radiographers / Workers at nuclear power stations / Research scientists
18 of 25
What are the three types of Nuclear waste?
Low Level / Intermediate Level / High Level
19 of 25
How do you dispose of Low Level waste?
Put in drums and surrounded by concrete, then put into clay lined landfill sites
20 of 25
How do you dispose of Intermediate Level waste?
Mix with concrete, then put in a stainless steel drum in a purpose - built store
21 of 25
How do you dispose of High Level waste?
Stored underwater in large pools for 20 years, then placed in storage casks in purpose-built underground store where air can circulate to remove heat produced.
22 of 25
What are the stages during Nuclear fission?
A neutron collides with a uranium nucleus. A uranium nucleus is large and unstable / The uranium nucleus splits into two similar-sized smaller nuclei / More neutrons are released / These neutrons can then collide with more uranium nuclei
23 of 25
What are the advantages of Nuclear Power?
No carbon dioxide is produced when the station is operating / There is a high power output / A small amount of fuel is needed, when compared with coal or gas
24 of 25
What are the disadvantages of Nuclear Power?
Hazardous radioactive waste is produced / Building the power stations is quite expensive / Decommissioning, ie taking apart, the power stations at the end of their lifetime is very costly
25 of 25
Other cards in this set
Card 2
Front
What is the name of the process in which nuclei come together?
Back
Nuclear Fusion
Card 3
Front
How far can beta radiation travel through air?
Back
Card 4
Front
Which type of radiation needs many centimetres of lead to stop it?
Back
Card 5
Front
Which type of radiation cannot penetrate through a sheet of paper?
Comments
No comments have yet been made