Physical world – design and production investigation
TLF ID A004553
In this investigative task, students explore how rolling objects are affected by changes in forces including stopping, starting, rolling faster and slower and in different directions. They explore the effects of force on objects by designing a marble push course. Using a straw to exhale (push) air, students manoeuvre a marble through their course design. They investigate and discuss how the force of the air (the harder they exhale) determines the speed of the marble as well as the strategies they use to change the marble’s direction and motion.