L2 Particles And Radiation- The Strong Nuclear Force (Overview)

Question 0

What exactly does the strong nuclear force do and what function does it carry out?

Hint: include the exception

Answer 0

Overcomes the electrostatic force of repulsion between protons in nucleus and (except in unstable nuclei) keeps protons and neutrons together.

Question 1

A……….has nuclei that don’t disintegrate. So there must be a force holding them together. This force is called the……….

Answer 1

Stable isotope. Strong nuclear force.

Question 2

What does fm stand for?

Answer 2

Femtometres

Question 3

How many metres is 1 fm?

Answer 3

10 (to the power) -15m

Question 4

What is the range of the strong nuclear force?

Answer 4

No more than 3-4 fm

Question 5

The range of the strong nuclear force is about the same diameter as what?

Answer 5

A small nucleus.

Question 6

In comparison, the………between 2 charged particles is infinite, though it does……..as the range increases.

Answer 6

Electrostatic force. Decrease.

Question 7

The strong nuclear force has the same effect between which 3 pairs of constituents of an atom?

Answer 7

Proton and a proton.
Neutron and a proton.
Neutron and a neutron.

Question 8

The strong nuclear force is an attractive force from……..down to……

Answer 8

3-4 fm down to 0.5 fm

Question 9

At separations smaller than 0.5 fm what kind of force is the strong nuclear force and what function does it carry out?

Answer 9

Repulsive force. Prevents protons and neutrons from being pushed into each other.