Question 4
1. Work in groups.
2. Each group member needs an inflated balloon and an empty soda can.
3. Lay down your can on a smooth table or on a hard, smooth, level floor.
4. Rub the balloon against your hair. This causes some electrons to move from your hair to the balloon.
5. Bring the balloon about 2.5 cm away from the can. Move it back and forth to make the can move (Figure 4.4). See whose can moves the fastest.
Caution: Be careful not to burst the balloon. If you do, pick up the pieces and throw them away.
2. Each group member needs an inflated balloon and an empty soda can.
3. Lay down your can on a smooth table or on a hard, smooth, level floor.
4. Rub the balloon against your hair. This causes some electrons to move from your hair to the balloon.
5. Bring the balloon about 2.5 cm away from the can. Move it back and forth to make the can move (Figure 4.4). See whose can moves the fastest.
Caution: Be careful not to burst the balloon. If you do, pick up the pieces and throw them away.
