Unit 1 - Sports and forces

Content

• The concept of force as a push or pull
• To represent forces in sketches that show magnitude and direction of force
• The types of force: gravity/weight, friction, air resistance, friction in water, buoyant force, normal force, forces in sports
• The effect of force on motion through understanding of balanced forces (no change to motion); unbalanced forces (acceleration, deceleration)
• Acceleration and deceleration (speeding up, slowing down, going at a steady or constant speed)
• The effect of increase or decrease of net force on motion of objects
• The forces in sports and contribution of science to improvement of safety and performance.

Skills and understanding

• Use the equation resultant force = mass x acceleration
• Use the equation Gravitational force = mass x gravitational field strength
• Interpret velocity time graphs
• Relate changes in velocity to resultant forces.
• Calculate net force