4-FAD-04

Outcomes

• Pupils should be able to give examples for, label and name a range of forces including Frictional Forces, Gravitational Force (Weight/gravitational pull), Tension Force, Electrical Force (electrostatic attraction/repulsion), Normal Force (Reaction), Magnetic Force, Air Resistance Force (drag), Applied Force (push/pull) and Spring Force.

Specification References

• 1.27 describe how extension varies with applied force for helical springs, metal wires and rubber bands
• 1.28 recall that the initial linear region of a froce-extension graph is associated with Hooke's law
• 1.29 associate elastic behaviour with the ability of a material to recover its original shape after the forces causing deformation have been removed.

Main Body of Lesson

Forces circus

• File too large to upload - laminated copies are provided with the circus- copy in science

Plenary

• Set up a balloon which is electrostatically charged, on the ceiling, attach a string with a

Homework

• Labelling forces homework sheet
• file too large to upload - look in science shared

Additional Information

Resources Required

• Electrical Force - balloons for electrostatics, rice in a plastic bottle charging polythene rods and using watch glass show repulsion

Textbook References

• None

Website References

• None

Skills Addressed

• Obtaining

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