Outcomes

Pupils should be able to give examples for, label and name a range of forces including

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)

recap the forces from last weeks lesson (contact, normal reaction, weight/gravitational and friction)

The force circus has now been split in three. 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 4 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.

Air resistance force/drag– ball bearing dropping through oil, model of dolphin, dropping ball and feather, parachute person
Thrust - balloon (long ones and fat ones), straws, 2 lines of string to go from the front of the lab to the back of the lab close to the ceiling
Upthrust - pieces of wood in water, different sized paper boat with paper clips to add, transparent water bath
Tension Force- ball and string, tyrolean traverse with barbie attached

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