1st year lesson 104

Multiple Choice

Which of the following best describes the law of electric charges?

• Like charges repel each other, and unlike charges attract each other.

• Electric charges always attract each other.

• Electric charges have no effect on each other.

• Only positive charges can move.

Open Ended

Why is it important for electricians to understand electric charges and basic mathematics in their work?

Multiple Choice

Which subatomic particles are found in the nucleus of an atom?

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

• Electrons only

Open Ended

Explain the difference between free electrons and electrons that are closer to the nucleus.

Multiple Select

Which of the following statements are true about electric charges?

• Oppositely charged particles repel each other

• Particles with the same charge attract each other

• Magnetism is the basis of electricity

• Oppositely charged particles attract each other

Open Ended

Describe the path that electrons take when moving from the negative terminal to the positive terminal in a circuit.

Multiple Choice

Which of the following best describes a conductor?

• A material that allows many electrons to move freely

• A material that allows very few electrons to move freely

• A material that does not allow any electrons to move

• A material that only allows protons to move

Multiple Select

Which of the following are considered good insulators?

• Rubber

• Copper

• Glass

• Air

Open Ended

Based on the information from the first two slides, compare and contrast conductors and insulators. Provide examples of each.

Multiple Select

Which of the following topics are included in the basic mathematics skills outlined in the slides?

• Statistics

• Trigonometry

• Organic Chemistry

• Solid Figures

Open Ended

List three types of math skills that are important for this curriculum and your career, as mentioned in the slides.

Multiple Choice

Why is it important to use a spotter when backing up a truck, and what should you do if a spotter is not available?

• To ensure you have enough clearance and avoid accidents; if a spotter is not available, you should get out and check the clearance yourself.

• To save time when parking; if a spotter is not available, you should park quickly.

• To impress your supervisor; if a spotter is not available, you should ask a coworker to do it for you.

• To avoid using mirrors; if a spotter is not available, you should ignore the clearance.

Open Ended

Explain the difference in steering technique between backing up a straight truck and a combination rig.

Open Ended

Do you have any questions or would you like to know more about electric charges or basic mathematics after this lesson?

Open Ended

What is one law of electric charges or a theory of current flow that you learned in this lesson?