Motion
Movement - Science Dimensions 4 - Chapter 6
Knowledge & skills
- Understand the difference between the following pairs of concepts: speed and velocity; distance and displacement.
- Describe the relationship between velocity and acceleration.
- Define average and instantaneous velocity and acceleration. Construct and interpret displacement / time graphs.
- Construct and interpret velocity / time graphs.
- Perform calculations using the appropriate equations of motion to relate time, displacement, velocity and acceleration.
- Describe the relationships between reaction time, braking distance and stopping distance.
- Describe the effects of balanced and unbalanced forces on the motion of objects.
- Calculate the net force acting on an object and hence describe the direction of its motion.
- Understand and apply the Law of Conservation of Momentum to collisions between moving objects.
- Describe the relationship between force, mass and acceleration and understand how to apply Newton's Second Law of Motion to issues of road safety.
- Explain the difference between weight and mass.
- Identify the reaction force to any action.
- Recognise the role of resistive forces, such as friction and air resistance, in aiding or retarding motion and causing terminal velocity.
- Use data logging equipment to record the motion of objects and present this information appropriately in a graph.
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