Nuclear Energy 3.6

Question 1

Einstein’s energy equation.

Answer 1

E = MC^2

Question 2

C = Speed of light

Answer 2

3.0x10^8

Question 3

link between U and Mev

Answer 3

1 u = 931.5Mev

Question 4

define the binding energy of a system?

Answer 4

The energy required to separate the particles of the system.

Question 5

Define Nuclide

Answer 5

distinct variety of atoms or nucleus

Question 6

formula for binding energy per nucleon?

Answer 6

= Binding energy / nucleon no.

Question 7

define nuclear force?

Answer 7

outside a hadron there is a residual short range interaction

Question 8

binding energy curve?

Answer 8

binding energy per nucleon vs nucleon no.

Question 9

define spontaneous fission?

Answer 9

splitting of a nucleus without stimulation by an incident neutron.

Question 10

Define Induced Fission?

Answer 10

splitting up of the nucleus caused by the absorption of a neutron.

Question 11

constant U

Answer 11

1.66x10^-27

Question 12

U to Kg

Answer 12

X 1.66x10^-272

Question 13

way of losing matter?

Answer 13

1. bring 1/2 kg of matter and 1/2 kg of anti matter together
2. Nuclear reactions

Question 14

Uses of radiation?

Answer 14

1. to sterilise medical equipment or food
2. check thickness of steel using a beta emitter
3. smoke detector using alpha radiation.

Question 15

Within a Nuclear fission reactor what are the control rods?

Answer 15

limits the rate of reaction by absorbing neutrons that uranium releases (high melting point)

Question 16

Within a Nuclear fission reactor what are the Uranium Blocks?

Answer 16

Reactants

Question 17

Within a Nuclear fission reactor what are the Moderator?

Answer 17

Slows neutrons down so greater probability of collision with uranium (poor neutrons absorbers)

Question 18

Within a Nuclear fission reactor what are the Barrier?

Answer 18

Protecting people

Question 19

Within a Nuclear fission reactor what are the coolant?

Answer 19

Controls temperature of the reactor.