English National Curriculum - Science Science
Mission Objectives
Recall the equation to calculate gravitational potential energy (GPE)
Use values for GPE to calculate the theoretical velocity of an object
Explain why the maximum theoretical velocity is never actually reached
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Words and meanings to learn
scientific calculator
a type of calculator designed to calculate problems in science, engineering and mathematics
GPE
stands for gravitational potential energy; the amount of GPE an object has on Earth depends on its mass and height above the ground
mass
a measure of how much matter is in an object; measured in kg
velocity
the speed of something in a given direction
theoretical
the theory of a subject or area of study rather than its practical application
Resources: Class presentation and handout.
Handout: Summarise the work of Kelvin and Rankine. Worked examples of how to use the equation. Practice using the formula in GPE calculations. Apply knowledge of KE and GPE to decide which statements match the 2 types of energy.
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