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Why does a balloon make a whizzling sound when rubbed against metal?
The sound is caused by the static electricity created when the balloon is rubbed against the metal surface. This static charge generates friction-induced vibrations in the balloon's material, producing the noise.
When metal rod is rubbed against polythene bag or sweater it attracts or not?
When a metal rod is rubbed against a polythene bag or sweater, the rod becomes charged with static electricity. The metal rod may be attracted to the polythene bag or sweater due to the opposite charges present on each material.
Why does sandpaper get hot when it is rubbed against a rusty metal?
When sandpaper is rubbed against rusty metal, friction is generated between the sandpaper and the metal surface. This friction causes heat to be produced due to the resistance between the two surfaces. The heat is a result of the kinetic energy being converted into thermal energy.
Would a negatively charged balloon stick to a metal rod?
No. It is not possible. Because as soon as balloon touches the metal charges would be conducted.
You watch your friend rub a balloon on their sweater and then stick it to the wall. To investigate, you set up an experiment to test what happens with other objects. What's the test variable in your experiment?
Answer: When you put the balloon on the wall after you rubbed it on the sweater. the balloon would either stick to the wall or repel from the wall depending on what kind of electrons there are on the sweater
Why does a balloon make a whizzling sound when rubbed against metal?
The sound is caused by the static electricity created when the balloon is rubbed against the metal surface. This static charge generates friction-induced vibrations in the balloon's material, producing the noise.
When metal rod is rubbed against polythene bag or sweater it attracts or not?
When a metal rod is rubbed against a polythene bag or sweater, the rod becomes charged with static electricity. The metal rod may be attracted to the polythene bag or sweater due to the opposite charges present on each material.
Why does sandpaper get hot when it is rubbed against a rusty metal?
When sandpaper is rubbed against rusty metal, friction is generated between the sandpaper and the metal surface. This friction causes heat to be produced due to the resistance between the two surfaces. The heat is a result of the kinetic energy being converted into thermal energy.
Would a negatively charged balloon stick to a metal rod?
No. It is not possible. Because as soon as balloon touches the metal charges would be conducted.
Would a negatively charged balloon stick to a metal wall as easily as to a wooden wall?
No, a negatively charged balloon would stick more easily to a metal wall compared to a wooden wall due to the higher conductivity of metals. The charges on the balloon induce opposite charges on the metal surface, creating a stronger attractive force.
What happens when a plastic rod is rubbed with wool?
When a metal rod is rubbed with wool, it gets energized because the metal rod and wool both have opposite effects.
Would silver leave a streak on paper?
It leaves a brown streak.
What is metal filing?
A 'metal filing ' is a tiny piece of metal that is rubbed off from a large piece by a file.
You watch your friend rub a balloon on their sweater and then stick it to the wall. To investigate, you set up an experiment to test what happens with other objects. What's the test variable in your experiment?
Answer: When you put the balloon on the wall after you rubbed it on the sweater. the balloon would either stick to the wall or repel from the wall depending on what kind of electrons there are on the sweater
How will a balloon have electricity an a shirt?
Plastic is a very good insulator. As such, if it come in contacts with another type of material, electrons may be added or removed from the insulator. When an object becomes positively or negatively charged, it may stick to other types of objects through electron interactions.
Why does a rubbed plastic object stay charged but a rubbed metal object lose its charge?
Rubbed plastic objects tend to hold onto their charge because they are insulators, meaning that they do not easily allow charge to flow. Rubbed metal objects, on the other hand, are conductors and can easily lose their charge as the electrons can move freely within the material and dissipate.
How can a balloon become charged and uncharged?
A balloon can become charged by rubbing it against a different material like wool or hair, causing a transfer of electrons. This imbalance of electrons creates a charge on the balloon. To discharge the balloon, it can be touched to a conductor like a metal object, allowing the excess electrons to flow away.
