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Intro to Electricity

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

Question 1
1.

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

Question 2
2.

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.

Question 3
3.

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

Question 4
4.

If an object loses electrons, it becomes ___________ charged.

Question 5
5.

When an object gains electrons, it becomes _________________ charged.

Question 6
6.

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.

Question 7
7.

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

Question 8
8.

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

Question 9
9.

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

Question 10
10.

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.

Question 11
11.

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

Question 12
12.

What is the overall charge of the sweater before rubbing?

Question 13
13.

What is the overall charge of the balloon before rubbing?

Question 14
14.

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.

Question 15
15.

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

Question 16
16.

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

Question 17
17.

Objects with OPPOSITE charges will ____________.

Question 18
18.

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.

Question 19
19.

Everything in the universe is made up of __________.

Question 20
20.

Ants are made of more than a ______________ atoms!

Question 21
21.

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

Question 22
22.

Electrons can move between atoms.

Question 23
23.

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.

Question 24
24.

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

Question 25
25.

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

Question 26
26.

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.

Question 27
27.

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

Question 28
28.

Glass Cup: Conductor or Insulator?

Question 29
29.

Metal Scissors: Conductor or Insulator?

Question 30
30.

Metal Baking Pan: Conductor or Insulator?

Question 31
31.

Iron Skillet: Conductor or Insulator?

Question 32
32.

Cotton Balls: Conductor or Insulator?

Question 33
33.

Stove Eye: Conductor or Insulator?

Question 34
34.

Plastic Spatula: Conductor or Insulator?

Question 35
35.

Trash Can: Conductor or Insulator?

Question 36
36.

Metal Wire: Conductor or Insulator?

Question 37
37.

Paper: Conductor or Insulator?

Question 38
38.

Penny: Conductor or Insulator?

Question 39
39.

Chalk: Conductor or Insulator?

Question 40
40.

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

Question 41
41.

Coils in a Space Heater: Conductor or Insulator?