Name:______________________________
Lab Static Electrical Force
Station 1: Balloon Paper Raise
Directions: Rub the balloon on your sweater or hair. Hover the balloon over the paper pieces.
Questions: What happens to the paper pieces? Explain why this happens.
Station 2: Static Box
Directions: Rub the balloon on your sweater or hair. Hover it over the balls in the box covered by the glass.
Questions: What happens to the balls in the box? Explain why this happens.
Station 3: Hanging bag
Directions: Rub the balloon on your sweater or head. Put the balloon next to the hanging bag.
Questions: What happens to the hanging bag? Explain why this happens.
Station 4: Rolling ball
Directions: Rub the balloon on your sweater or head. Put the balloon next to the ball.
Questions: What happens to the ball? Explain why this happens.
Station 5: Static Tube
Directions: Rub the ball on your sweater or hair. Hover it next to the static tube.
Questions: What happens to the balls in the static tube? Explain why this happens.
Station 6: Water bending
Directions: Rub the balloon on your hair or sweater. Hover it next to the stream of water.
Questions: What happens to the stream of water? Explain why this happens.
Station 7: Flying balloons
Directions: Have 2 partners in your group rub their balloons on their sweater or hair. Place the two balloons
together at the place they were rubbed. Let go at the same time.
Questions: What happens to the balloons? Explain why this happens.
Station 8: Stick ‘em
Directions: Rub the balloon on your hair or sweater. Stick it anywhere in the classroom.
Questions: What happens to the balloon? Explain why this happens.
Lab Questions:
1.
Rubbing an object against your head or sweater causes friction which causes a buildup of ____.
a. Protons
b. neutrons
c. electrons
2.
If there is a buildup of electrons on an object, the object has a ________charge.
a. Positive
b. negative
c. neutral
3.
If an object has a positive charge, it will _______ another object with a positive charge.
a. Attract
b. repel
4.
If an object has a negative charge, it will________ another object with a negative charge.
a. Attract
b. repel
5.
If an object has a negative charge, it will ________ an object with a positive charge.
a. Attract
b. repel
6.
Explain how the SEf works.
7.
If you see a spark from the SEf, what are you really seeing?
8.
Is the SEf contact or non-contact?______________ Which station showed this the best and why?