levers [video clips] [appearing pictures with questions]

• Click the RED arrow. Hover over each question for a screenshot to appear.
• 1. Which topic is covered in this video ?
  • 
• 2. What is another name for a lever ?
  • 
• 3. Why is a building site pictured here ?
  • 
• 4. Where else do you find levers. ?
  • 
• 5. What three words do you need to know about levers ?
  • 
• 6. Why are there 3 classes of lever ?
  • 
• 7. Where is the fulcrum in a first class lever ?
  • 
• 8. How is the effort provided in this example ?
  • 
• 9. What might be an example of a load in this example ?
  • 
• 10. Where is the load in a second class lever ?
  • 
• 11. Why do you think this lever makes it easier to crack a nut ?
  • 
• 12. What other example of this class of lever does the video show ?
  • 
• 13. Where is the effort in a third class lever ?
  • 
• 14. How do you think an ice hockey player would use this lever ?
  • 
• 15. When might this same lever be used in the garden ?
  • 
• 16. Is it the same class of lever if you use this claw hammer to pull out a nail ?
  • 
• 17. Do you know what a mnemonic is ?
  • 
• 18. What do you think these 3 letters stand for ?
  • 
• 19. What about the 3 numbers below ?
  • 
• 20. Did you get these correct ?
  • 
• 21. What about these ?
  • 
• 22. Can you understand this diagram ?
  • 
• 23. What about this one?
  • 
• 25. ..................and the last one, understand this as well ?
  • 
• 26. In that case I think you know all about levers. Well done!!