Radioactivity And Circuits(short(

Question 1

Background radiation

Answer 1

Radiation we are exposed to daily

Question 2

What are three ionising radiations that we are exposed to

Answer 2

Cosmic rays
Food(bananas)
Normally occurring rocks
HUMAN
industry and hospitals

Question 3

average background level

Answer 3

0.1-0.2 micro sieverts

Question 4

Sievert

Answer 4

Derived unit if ionising radiation dose in the international system of units is used. It is a measure of the health effect of low levels of ionising radiation on the human body

Question 5

Where was the first atomic bomb dropped

Answer 5

Second World War in Hiroshima Japan

Question 6

What is uranium under uv light

Answer 6

Fluorescent

Question 7

Where was the first atomic bomb was detonated

Answer 7

Trinity sure in new mexico

Question 8

What happened after an atomic bomb

Answer 8

Catastrophic amounts of heat were given out by the explosion and the sand in the surrounding area turned to trinity (green)

Question 9

Why do pilots and flight attendants have to limit their flights on annual basis

Answer 9

As in the air they have more radiation exposure from the sun die the flights being at high altitude

Question 10

What are 2 well known nuclear meltdowns

Answer 10

Chemobly= April 1986
Fukushima=march 2011

Question 11

Why is the measure of Fukushima similar to chemobly

Answer 11

Even though chemobly was more catastrophic their vales of radiation are similar because Fukushima happened more recent and therefore the fallout from chemobly had decayed.

Question 12

Name jobs from highest to lowest that you are exposed to radiation

Answer 12

Smoker
Astronaut
Radiographer
Dentist
Pilot

Question 13

How many sieverts is fatal

Answer 13

2

Question 14

When does radioactivity occur

Answer 14

Radioactivity occurs when an unstable nucleus decays and releases or admits an alpha particle a beta particle or a alpha wave

Question 15

Alpha particle

Answer 15

Helium nucleus

Question 16

Beta particle

Answer 16

Electron

Question 17

Gamma

Answer 17

Ray

Question 18

Alpha can be stopped by

Answer 18

Least amount of energy and can be stopped by a thin shape of paper

Question 19

Beta particles are stoped by

Answer 19

Aluminium

Question 20

What particle can nothing stop

Answer 20

Gamma

Question 21

Henri becquerel

Answer 21

1852 to 1908. joint noble prize winner for the discovery of radioactivity after which the SI unit becquerel( one decay per second )was named. 

Question 22

Marie curie

Answer 22

1867 to 1934. first female to win a noble prize and only person to win two in science her first was in 1903 and joint with her husband Pierre and Henri becquerel for the discovery of radioactivity and the second in 1911 for chemistry. 

Question 23

Ernest Rutherford

Answer 23

1871 to 1937. famous for his gold leaf experiment which led to the current model of the atom he discovered that there were two types of radiation coming from the decay of uranium. alpha and beta. 

Question 24

What radiation is used in X-rays

Answer 24

X-rays

Question 25

How do X-ray scans work

Answer 25

Calcium absorbs x-rays better than soft tissue so shows brighter. The bones are the brightest(white) as they have the highest mass number.

Question 26

A ct scan gives a more detailed version than what

Answer 26

An X-ray

Question 27

What can X-rays view aside bones

Answer 27

Teeth

Question 28

What is a,so used and what does it stand for

Answer 28

PET scans Positron emissions tomography

Question 29

What happens during a PET scan

Answer 29

Biological molecule is a radioactivity substance which is injected or ingested when undergoing a radioactive trace examination or pet scan 

Question 30

What type of radioactivity is being looked at during pet scans

Answer 30

Gamma ray photons

Question 31

What parts of your body would under go pet scans

Answer 31

Brain heart or internal organs

Question 32

Alpha decay

Answer 32

Radioactive emission of a particle

Question 33

Background radiation definition

Answer 33

Radiation occurring naturally around us when no known the source is prsent

Question 34

Beta decay

Answer 34

Radioactive emission of B particles

Question 35

Dose

Answer 35

Strength of radiation

Question 36

Gamma rays

Answer 36

Em radiation shortest

Question 37

Geiger counter

Answer 37

Device which measures rate of decay

Question 38

Meltdown

Answer 38

Uncontrolled radioactivity

Question 39

Radioactivity

Answer 39

Emission of ionising alpha beta or gamma due to the random spontaneous decay of a nucleus 

Question 40

Tracers

Answer 40

Chemical compound containing radionuclides used to trace activity in medical PET scan

Question 41

Uranium

Answer 41

Radioactive element

Question 42

X-rays definition

Answer 42

Used in medical imaging to check for broken bones, tumours location etc

Question 43

Switch

Answer 43

Line dot angled line dot line

Question 44

Cell

Answer 44

Horizontal line vertical line gap thick line horizontal line

Question 45

Battery

Answer 45

Horizontal line vertical line gap thick line dashes vertical line gap thick line and horizontal line

Question 46

Lamp/bulb

Answer 46

Line circle with x through it line

Question 47

Conventional batteries in physics are called

Answer 47

Cells

Question 48

What makes a batter

Answer 48

2 or more cells

Question 49

What does a circuit do

Answer 49

Yeah, idea of a circuit diagram is to use circuit symbols instead of drawing each component in the circuit always make wire straight lines not wiggly

Question 50

Any breaks in the circuit

Answer 50

The bulb will go out

Question 51

The more efficient the circuit is

Answer 51

The brighter the bulb

Question 52

What efficient ways and effective ways based on

Answer 52

Series Parallel

Question 53

Circuit benefits

Answer 53

There are many ways to connect components together and as long as the circuit is complete I conducting materials and a continuous path between the two terminals of the cell/battery then the electricity will flow