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The force of a floor

The starter and exit quiz of the lesson “The force of a floor”, from the unit “Hidden forces” (Year 9 Science) by Oak National Academy.

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Oak National Academy

12 questions

  1. Which word is used to describe the downwards force of an object on a surface it is resting on?
  2. Which of the following affects the amount of weight of an object on a surface?
  3. What word is used to describe a material that returns to its original shape when the forces acting on it are removed?
  4. What type of electric charge do electrons carry?
  5. What type of force acts between two objects that are electrically charged?
  6. Which of the following correctly describe the structure of an atom?
  7. Match the key words with the descriptions.
  8. Izzy holds a mass stationary in her hand. Which statements are correct?
  9. What happens to the size of the electrostatic forces between two surfaces when they are pushed closer together?
  10. Some pupils use a plank of wood to build a bridge across a ditch. They walk across the plank one at a time to get to the other side. What happens to the wooden plank as they walk across?
  11. How do the forces between atoms in solids operate?
  12. A 5 kg mass is placed on a solid surface. What happens when a second identical mass is placed on top of the first?

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The force of a floor · Examplary