Admin Table of Contents
- 1 What causes the stream of water to deflect or bend?
- 2 Does a comb float or sink?
- 3 Why does a stream of water bend towards a charged rod?
- 4 What happened when you brought the comb near the stream of water?
- 5 How does a balloon bend water?
- 6 Why does a comb bend in water?
- 7 What happens when a negatively charged comb touches water?
- 8 How big should a stream of water be for a comb?
What causes the stream of water to deflect or bend?
Water is made up of polar molecules, each containing a negatively charged oxygen end and a positively charged hydrogen end. When a charged rod of material is brought near a thin stream of water, the water will be attracted to the charged rod and the stream of water will bend towards the rod.
Does a comb float or sink?
The first way, sink it! The horn comb is denser than water, so it will sink if put in water. It means if the comb float, it must not a horn comb. But if it sinks, you cannot tell whether it is genuine or fake for now.
Why do you not want the comb to touch the water?
When you brushed that comb through your hair, tiny parts of the atoms in your hair, called ELECTRONS, collected on the comb. These electrons have a NEGATIVE charge. When you bring the negatively charged comb near the faucet it is attracted to the POSITIVE force of the water.
Why does a stream of water bend towards a charged rod?
Water molecules are polar. That is, water molecules have a positive end (hydrogens) and a negative end (oxygen). Electrons are unevenly distributed in water molecules because oxygen is more electronegative than hydrogen. Negative and positive charges attract one another and the water stream is bent towards the rod.
What happened when you brought the comb near the stream of water?
The answer is static electricity. Static electricity often happens when you rub things together. Combing your hair creates static electricity. When the negatively charged comb comes near the water, it repels the electrons in the water, so that the side of the water nearest the comb then has a positive charge.
Can we bend water?
Using a negatively charged plastic comb, a balloon or PVC pipe we can bend a water stream due to the positive charge in water.
How does a balloon bend water?
When you bring the negatively charged balloon close to the stream of water, the hydrogen end is attracted towards the balloon and the oxygen end is repelled away from it. This pair of forces twists the water molecule so that the line from the negative pole to the positive pole points towards the balloon.
Why does a comb bend in water?
The thin stream of water carries a positive charge. When the comb is brought near the stream, the positive charge of the water and the negative charge on the comb are attracted to one another, causing the water to bend. After combing, the hair is left positively charged.
How do you use a water balloon comb?
Turn on the tap so that a narrow stream of water is flowing (1 to 2 mm across, flowing smoothly). Move the balloon or teeth of the comb close to the water (not in it). As you approach the water, the stream will begin to bend toward your comb.
What happens when a negatively charged comb touches water?
When the negatively charged comb comes near the water, it repels the electrons, so that the side of the water nearest the comb then has a positive charge. The attraction between this positive charge and the negatively charged comb results in a net force on the water, bending the stream.
How big should a stream of water be for a comb?
The stream of water should be about 1⁄ 8 inch (0.32 cm) wide. Place the comb right next to the stream of water without touching it. If the comb (or spoon or balloon) picked up enough charge, the water will bend toward the comb as it falls.