Revision as of 13:31, 12 April 2009

Outcomes

• Pupils can arrange all the GCSE quantities into two groups: scalars and vectors.
• Pupils appreciate that force is a vector quantity and understand the nature of this.
• Pupils can name and label forces on stationary objects using arrows (1-D and 2-D) and show that they are balanced.
• Pupils can create a triangle of force vectors (2-D) from a trio of string pulling on a stationary loop to appreciate balanced forces.
• Pupils can add force vectors that act along a line.

Specification References

• 1.10 distinguish between vector and scalar quantities
• 1.11 appreciate the vector nature of a force
• 1.12 add forces that act along a line

Starter

• Students are split into groups and are given packs of cards with all the GCSE quantities written on them. They are asked to put them into two groups: 1) those that have a direction and can be represented with an arrow and 2) those that do not.

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