Electrostatic Forces in Materials
Physics ⇒ Electricity and Magnetism
Electrostatic Forces in Materials starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Electrostatic Forces in Materials.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
A dielectric is inserted between the plates of a charged parallel plate capacitor. What happens to the electrostatic force between the plates?
A plastic rod is rubbed with wool and becomes negatively charged. What happens to the electrons in this process?
A student rubs a balloon on their hair and the balloon sticks to a wall. Which force is responsible for this phenomenon?
Describe what happens to the charges in a conductor when it is placed in an external electric field.
Explain the difference between conductors and insulators in terms of electron movement.
Explain why metals are good conductors of electricity.
Explain why the force between two charges is weaker in water than in air.
If the magnitude of each of two point charges is doubled, how does the electrostatic force between them change?
State Coulomb's law for the force between two point charges in a vacuum.
The electrostatic force between two charges is 9 N when they are 1 m apart. What will be the force if the distance is reduced to 0.5 m?
A charged sphere is suspended by an insulating thread and brought near a neutral metal sphere resting on an insulating stand. Describe and explain the sequence of charge movement and the final charge distribution if the metal sphere is briefly grounded while the charged sphere is nearby.
