3-Aut2-G
From MrReid.org Wiki
Contents
Outcomes
Pupils should be able to give examples for, label and name a range of forces including
- Upthrust
- Tension Force
- Spring Force
- Electrical Force (electrostatic attraction/repulsion)
- Magnetic Force
Specification References
1.7 Express a force as a push or a pull of one body on another
1.8 Identify various types of force (e.g. gravitational, electrostatic etc)
Starter
Main Body of Lesson
- The force circus has now been split in half. To get through the circus I suggest talking through each station with the entire group having different pupils undertaking the experiment as you go. There is also a powerpoint with some simple definitions of the 6 forces covered in this lesson.
- Laminated copies are provided with the circus- copy in science shared
- You may be asked to have types of forces lesson 2 prior to lesson 1 so that kit can be easily shared.
Plenary
- Set up a balloon which is electrostatically charged, on the ceiling, attach a string with a paperclip at the end. With a strong magnet on a retort stand, arrange it so that it is attacting the paperclip in the horizontal direction. The paperclip could have a wooden block attached to it which is floating in a beaker of water find set up here
- Have students draw and label the forces acting on the balloon and paperclip. Ask them to consider the size, direction and type of force
Homework
Additional Information
Resources Required
- Electrical Force - balloons for electrostatics, rice in a plastic bottle charging polythene rods and using watch glass show repulsion
- Lift - wing
- Magnetic - 2x bar magnets, iron filing in a boiling tube, horse shoe magnets attached to two vehicles with ability to reverse them, magic floating paperclip
- Upthrust - pieces of wood in water, different sized paper boat with paper clips to add, transparent water bath
- Spring force- spring and masses, rubber bands, squashy ball
- Tension Force- ball and string, tyrolean traverse with barbie attached
Textbook References
- None
Website References
- None
Skills Addressed
Safety/Hazards
- A tank with water in it will be heavy and so is only to be moved by the technician; please refer to the Manual handling section of the Laboratory Lessons Health and Safety Risk Assessment
- When using springs, goggles must be worn
- The main risk is from the vacuum pump and apparatus. The specific risk assessment must be read before using the apparatus.
- General Laboratory Health and Safety Risk Assessment
Notes
- None
