Year 6 and 7 Mathematics, Science and Technology

FORCES BEHIND MEGAStructures

TYPES OF FORCES

Introduction to forces notes are found in the powerpoint presentations below.
_basic_forces1.ppt
File Size: 3887 kb
File Type: ppt
Download File

forces_everywhere.pdf
File Size: 140 kb
File Type: pdf
Download File

balanced_and_unbalanced_forces.pdf
File Size: 131 kb
File Type: pdf
Download File

MAGNETIC FORCES

Picture
Magnets work because of an invisible force. Scientists, engineers, and inventors have many uses of magnets. They are used in computers and electric motors. They are used in medical devices, CD and DVD players among other things. 

LINK: What is the role of magnetic forces in megastructures?

magnets_ppt.ppt
File Size: 2759 kb
File Type: ppt
Download File

magneticlab.pdf
File Size: 195 kb
File Type: pdf
Download File

MAGNETIC LAB DUE DATE: Thursday, January 27th, 2011.

FRICTION FORCES

Picture
Friction is the force applied to the surface of an object when it moves against another object. Friction can slow down an object or stop it from moving.

Questions to ponder
1. Can the force of friction be helpful when creating and designing megastructures?
2. What would happen if the friction force was absent?
3. What can be done to reduce the force of friction?

friction_ppt.ppt
File Size: 1904 kb
File Type: ppt
Download File

FRICTION LAB DUE DATE: Wednesday, February 9th, 2011.

GRAVITY AND AIR RESISTENCE

Picture

mass_force_and_gravity_ppt.ppt
File Size: 1822 kb
File Type: ppt
Download File