Motion in a Straight Line      

• Inquiry question: How is the motion of an object moving in a straight line described and predicted?

Students:

• describe uniform straight-line (rectilinear) motion and uniformly accelerated motion through:

• qualitative descriptions
• the use of scalar and vector quantities

• conduct a practical investigation to gather data to facilitate the analysis of instantaneous and average velocity through: 

• quantitative, first-hand measurements
• the graphical representation and interpretation of data 

• calculate the relative velocity of two objects moving along the same line using vector analysis
• conduct practical investigations, selecting from a range of technologies, to record and analyse the motion of objects in a variety of situations in one dimension in order to measure or calculate:

• time
• distance
• displacement
• speed
• velocity
• acceleration

• use mathematical modelling and graphs, selected from a range of technologies, to analyse and derive relationships between time, distance, displacement, speed, velocity and acceleration in rectilinear motion, including:

• s=ut+12at2  
• v=u+at
• v2=u2+2as

• Motion on a Plane
• Inquiry question: How is the motion of an object that changes its direction of movement on a plane described?
• Students:

• analyse vectors in one and two dimensions to:

• resolve a vector into two perpendicular components
• add two perpendicular vector components to obtain a single vector 

• represent the distance and displacement of objects moving on a horizontal plane using:

• vector addition
• resolution of components of vectors
• describe and analyse algebraically, graphically and with vector diagrams, the ways in which the motion of objects changes, including: 

• velocity
• displacement 

• describe and analyse, using vector analysis, the relative positions and motions of one object relative to another object on a plane 
• analyse the relative motion of objects in two dimensions in a variety of situations, for example:

• a boat on a flowing river relative to the bank
• two moving cars
• an aeroplane in a crosswind relative to the ground