Kinetic energy is the energy an object has because it is moving. All moving things have kinetic energy, but the amount of energy they have is not just dependent on how fast they are moving.
Australian Curriculum (v9.0) content description: Year 8 Science
Classify different types of energy as kinetic or potential and investigate energy transfer and transformations in simple systems (AC9S8U05)
Year 8 Achievement Standards
By the end of Year 8, students compare different forms of energy and represent transfer and transformation of energy in simple systems.