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Intro to Electricity

Last updated 11 months ago
41 questions

1. & 2. WATCH THE VIDEO BELOW AND ANSWER THE QUESTIONS THAT FOLLOW.

3

Which of the following are electrical appliances? (select ALL that apply)

3

Which TWO are sources of electricity for everyday use?

BEFORE WE GET INTO THE TWO TYPES OF ELECTRICITY, WE NEED TO KNOW WHERE WHAT ELECTRICITY IS EXACTLY!

3. - 6. Watch the video clip and answer the questions below it.

2

Normally, the electrons and protons in an atom balance out.

2

If an object loses electrons, it becomes ___________ charged.

2

When an object gains electrons, it becomes _________________ charged.

2

When two objects with opposite charges come into contact, _______________ move from the _____________ object to the _________________ object.

7. - 10. FOLLOW THE DIRECTIONS BELOW THE INTERACTIVE AND ANSWER THE QUESTIONS THAT FOLLOW.

0

Drag John Travoltage’s FOOT across the carpet. Describe what happens!

0

Bring John Travoltage’s FINGER down to the door knob. Describe what happens!

0

Why doesn’t John Travoltage get a shock if he touches the doorknob without rubbing his foot on the carpet?

0

Observe which direction the spark travels when John Travoltage’s finger comes close to the metal doorknob.

a) Draw on the diagram of his finger and the doorknob below.

b) Label the CHARGES (positive, negative, neutral) of both objects and show the direction the spark is traveling!

11. - 14. Take a moment to look at the items the simulator window is displaying (balloon, sweater, wall, charges, etc.) Follow the directions below the interactive and answer the questions as you go.

0

Sketch the charges (+ and -) on the sweater AND the balloon in the BEFORE RUBBING in box below.

2

What is the overall charge of the sweater before rubbing?

2

What is the overall charge of the balloon before rubbing?

0

Sketch the charges (+ and -) on the sweater AND the balloon in the AFTER RUBBING in box below.

15. - 18. Click “Reset Balloon” and then click on the image of TWO balloons just above the “Reset Balloon” button. Read the directions below the interactive and create each scenario.

0

Make the balloons repel! Draw the charges on the balloons that repel in the picture below.

0

Make the balloon and sweater attract! Draw the charges on the balloon and sweater that attract in the picture below.

2

Objects with OPPOSITE charges will ____________.

2

Objects with SAME charges will ____________.

SO THAT'S STATIC ELECTRICITY...NOW, ON TO ELECTRIC CURRENT!

19. - 23. Watch the video clip and answer the questions below it.

2

Everything in the universe is made up of __________.

2

Ants are made of more than a ______________ atoms!

2

When talking about electricity, the most important part of an atom is the ________________.

2

Electrons can move between atoms.

2

The flow of electrons is called _________________.

Conductors are materials with easily movable charges, allowing current to occur.

Insulators do not have easily movable charges, so current is not produced.

0

Look at the materials above. Which do you think are conductors?

0

Look at the materials above. Which do you think are insulators?

2

Look at your list of conductors.

What kind of material are most conductors?

33. - 47. Use what you've learned to answer the questions below.

0

Label the conductors and insulators shown on the plug in the picture.

2

Glass Cup: Conductor or Insulator?

2

Metal Scissors: Conductor or Insulator?

2

Metal Baking Pan: Conductor or Insulator?

2

Iron Skillet: Conductor or Insulator?

2

Cotton Balls: Conductor or Insulator?

2

Stove Eye: Conductor or Insulator?

2

Plastic Spatula: Conductor or Insulator?

2

Trash Can: Conductor or Insulator?

2

Metal Wire: Conductor or Insulator?

2

Paper: Conductor or Insulator?

2

Penny: Conductor or Insulator?

2

Chalk: Conductor or Insulator?

2

Curling Iron (part that touches hair): Conductor or Insulator?

2

Coils in a Space Heater: Conductor or Insulator?