alpha beta and gamma

Question 1

alpha decay definition what it’s stopped by and what it is denoted by

Answer 1

is the emission of a helium nucleus denoted by 4He or 4a
2 2
alpla patties can be stopped by skin but damage cells through ionization (charging)

Question 2

beta decay definition what is denoted as

Answer 2

emission of a high speed electron denoted by 0 B -1 emitted the same time a neuron changes into a proton

Question 3

Gamma decay

Answer 3

emission of a high energy photon (particle of light) 0 Y denoted by that
0
highly energetic not that ionizing

Question 5

penetration for B A and G

Answer 5

beta stopper by metal sheet block of wood

alpha largest particle not very penetrating stopped by skin

Gamma great penetrating power, stopped by 30cm of lead

Question 6

when you are demonstrating gamma decay what do you always provide what before the arrow

Answer 6

a *

Question 7

half life definition

Answer 7

half life is the time it takes for half of the original radioactive isotope parent element to convert into the stable daughter element

Question 8

after how many half lives are there equal amounts of parent and daughter isotopes

Answer 8

1

Question 9

when reading a question with a period or question mark or more then you know

Answer 9

that sometimes there are more than one question in one question

Question 10

remember that when it asks for EP converter to Ek you always have to solve for what first

Answer 10

Ep

Question 11

thermal energy vs temperature

Answer 11

thermal is the total kinetic and stored energy within an object

Temperature is the average kinetic energy of the particles within an object

Question 12

which contains more heat a pot of boiling water or iceberg

Answer 12

The iceberg has more heat because there’s more particles which means more energy but the pot has a greater temperature

Question 13

kinetic molecule or theory explain

Answer 13

Solids particles very close together
liquids particles sort of apart
gases particles very far apart

when a material is heated the molecules move faster and as a result it will expand

Question 14

If an object is heated it will either

Answer 14

Increase temperature or change it state

Question 15

what particles are found in the centre of the atom

Answer 15

Protons and neutrons

Question 16

neutral atoms have blank number of protons and electrons

Answer 16

The same number of

Question 17

positive ions have blank protons than electrons

Answer 17

More

Question 18

Negative ions have blank protons and electrons

Answer 18

Less

Question 19

what is the definition of radiation and em waves

Answer 19

Radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes electromagnetic radiation like light and radio waves, as well as particle radiation like alpha and beta particles.

Question 20

Electrons don’t affect ability of an atom but blank and blank do

Answer 20

protons neutrons

Question 21

what are isotopes

Answer 21

Same protons meaning atomic number but different amount of neutrons

Question 22

when doing half life always use hours with hours and days with days etc for ex

Answer 22

50days/10 days

Question 23

In half life when I asked for the original sample it means multiplied by two not by 1/2

T or F

Answer 23

T

Question 24

conversation of energy is like a

Answer 24

pendulum PE converts to EK

Question 25

does the process of two hydrogen isotopes coming together at super high temperatures to form helium describe fission or fusion explain

Answer 25

This processes fusion. Here to light particles are fusing together to make one large larger particle.

Question 26

An unstoppable isotope that is used to produce nuclear energy. When a single neutron is fired into an atom that produces smaller atoms. Is this process vision or fusion explain

Answer 26

This process is vision here a heavier particle is splitting into two smaller particles

Question 27

A microwave oven is

Answer 27

Radiation

Question 28

A stove element is

Answer 28

Conduction

Question 29

A gas fireplace is

Answer 29

Convention

Question 30

The brakes of a motorcycle is

Answer 30

conduction

Question 31

can you explain to someone who is walking on hot sand while their beach towel doesn’t feel as hot as the sand even when it sits in the same sun? What about the wet sand compared to the dry sand?

Answer 31

Since the sun is the same, the energy is the same. If the specific heat capacity increases towel or wet sand the temperature increases

Question 32

if we compare Glass with blood which one will take more time and energy to heat up why

Answer 32

Glass will take more energy in time to heat because it has a higher specific heat capacity. This means it takes more energy to raise one kilogram of the material by 1°C

Question 33

I take a glass out of the dishwasher and it’s quite warm a few minutes later it has cooled off or did the energy go

Answer 33

into the air around

Question 34

When I touched it I felt warm what kind of energy transfer is that

Answer 34

Conduction

Question 35

Which kind of thermal energy transfer happens due to density differences in liquids and gas

Answer 35

Convention

Question 36

Which type of thermal energy transfer uses infrared electromagnetic waves

Answer 36

Radiation