Static electricity
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Waxaan qeexi karaa sida walxaha danab togan ama taban leh ay u soo jiitaan ama u iska celiyaan walxaha kale ee danabka leh.
Introduction
In this lesson: I can describe how objects with a positive or negative charge attract or repel other charged objects. Some objects can be charged by rubbing with certain materials. Objects with a static electric charge can exert a force on other objects (that contain electric charge).
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Quizzes
1. 1. Which of these materials is a good electrical conductor?
- plastic
- glass
- rubber
- Correct answer:copper
2. What is an insulator?
- Correct answer:a material that does not allow electricity to pass through
- a device that generates electricity
- a material that allows electricity to pass through
- a type of battery
3. Which of the following are carry a charge?
- atom
- Correct answer:proton
- neutron
- Correct answer:electron
4. Which of the following statements about the structure of an atom is correct?
- protons orbit the nucleus
- electrons have a relative mass of 1
- electrons are located in the nucleus
- Correct answer:electrons orbit the nucleus
5. What is the charge on an electron?
- positive
- Correct answer:negative
- neutral
6. What happens when you rub your hands together quickly?
- they get colder
- Correct answer:they heat up due to friction
- they become electrically charged
- they start glowing
1. Which of the following things need to be done to electrostatically charge a plastic ruler?
- connect it to a 9 V battery with a wire
- connect it to 230 V mains electricity
- rub it with aluminium foil
- Correct answer:rub it with a cloth
2. Which two of the following are the types of electrostatic charge?
- neutral
- Correct answer:positive
- Correct answer:negative
- north
- south
3. A charged ruler is able to pick up the uncharged pieces of paper as shown. Which of the following statements is correct?
- Correct answer:there is an electrostatic force of attraction between the ruler and paper
- there is an magnetic force of attraction between the ruler and paper
- there is an gravitational force of attraction between the ruler and paper
4. Which of the following statements can correctly describe the ruler shown? Select all that apply.
- Correct answer:the ruler is electrostatically charged
- the ruler has a positive and negative terminal
- Correct answer:the ruler has a positive charge
- the ruler is magnetic
5. Which of the following will the two balloons shown experience due to their electrical charges?
- an upward force
- a downward force
- Correct answer:a force of attraction
- a force of repulsion
6. The ends of the plastic strip shown are pushing away from each other. Which of the following statements can explain why? Select all that apply.
- Correct answer:the plastic strip is charged
- Correct answer:the charge on both ends of the strip is the same
- Correct answer:the strip has been rubbed with cloth
- the strip has been magnetised
- Correct answer:like charges repel
What pupils see
The same lesson as a pupil sees it. You can set any section as work on its own.
- IntroductionPrepare
- Starter quizActivate · 6 questions
- Lesson videoLearn
- Exit quizCheck · 6 questions