Use the diagram of a particle accelerator and your knowledge of colliding particles to answer the questions below.

Question

In particle accelerators such as the one shown here, fields are employed to separate different subatomic particles. What type of fields are employed?

a circular hollow tube is shown. On the left side, particles can be injected into the hollow tube. An electric supply is also powering the tube.

(1 point)
Responses

Electric and gravitational fields are employed.
Electric and gravitational fields are employed.

Magnetic and light fields are employed.
Magnetic and light fields are employed.

Electric and Magnetic fields are employed.
Electric and Magnetic fields are employed.

Magnetic and Weak Force fields are employed.
Magnetic and Weak Force fields are employed.
Question 2
Use the diagram of a particle accelerator to answer the question.

What characteristics do the particles need to have in order to be separated in the particle accelerator?

(1 point)
Responses

Particles need to be charged.
Particles need to be charged.

Particles need to be neutral.
Particles need to be neutral.

Particles need to come from the same type of atom.
Particles need to come from the same type of atom.

Particles need to have the same mass.
Particles need to have the same mass.
Question 3
If two electrons were fired directly at each other at high speeds, what would be the change in their kinetic and potential energies?(1 point)
Responses

As the two particles approached each other at high speeds, they would slow down causing a decrease in kinetic energy and rapid increase in potential energy.
As the two particles approached each other at high speeds, they would slow down causing a decrease in kinetic energy and rapid increase in potential energy.

As the two particles approached each other at high speeds, they would speed up causing an increase in kinetic energy and rapid decrease in potential energy.
As the two particles approached each other at high speeds, they would speed up causing an increase in kinetic energy and rapid decrease in potential energy.

The two particles would travel at high speeds towards each other, around the tube, never interacting with each other, with no changes in their kinetic or potential energies.
The two particles would travel at high speeds towards each other, around the tube, never interacting with each other, with no changes in their kinetic or potential energies.

The two particles would stop and reverse direction.
The two particles would stop and reverse direction.
Question 4
An every day example of an application of the discoveries made with particle accelerators would be:(1 point)
Responses

Cathode ray tubes used in modern televisions
Cathode ray tubes used in modern televisions

a MRI machine (Magnetic Resonance Imaging) for looking at human internal body structures.
a MRI machine (Magnetic Resonance Imaging) for looking at human internal body structures.

New technologies for manufacturing long-lasting Insulin drugs for diabetics.
New technologies for manufacturing long-lasting Insulin drugs for diabetics.

Recent methods developed for the identification of lead in drug compounds.

Answer 1

Here are the answers based on your questions regarding particle accelerators:

Question 1: What type of fields are employed?

• Answer: Electric and Magnetic fields are employed.

Question 2: What characteristics do the particles need to have in order to be separated in the particle accelerator?

• Answer: Particles need to be charged.

Question 3: If two electrons were fired directly at each other at high speeds, what would be the change in their kinetic and potential energies?

• Answer: As the two particles approached each other at high speeds, they would slow down causing a decrease in kinetic energy and rapid increase in potential energy.

Question 4: An everyday example of an application of the discoveries made with particle accelerators would be:

• Answer: a MRI machine (Magnetic Resonance Imaging) for looking at human internal body structures.

These answers are based on fundamental principles of particle physics and the operation of particle accelerators.