Rote Learning #1 Flashcards
Which energy store increases when an object is raised up?
Its gravitational store.
Which energy store increases when an object moves faster?
Its kinetic store.
Which energy store increases when an object’s temperature increases?
Its thermal store.
Which energy store increases when a fuel burns?
Its chemical store.
Which energy store increases when an object is stretched or compressed?
Its elastic store.
What is the law of conservation of energy?
That energy can be transferred usefully, stored or dissipated but can’t be created or destroyed.
What is an example of the gravitational store?
When an object is raised up.
What is an example of the kinetic store?
When an object moves faster.
What is an example of the thermal store?
When an object’s temperature increases.
What is an example of the chemical store?
When a fuel burns.
What is an example of the elastic store?
When an object is stretched or compressed.
What changes in a closed system?
There is no net energy change to the total system.
When is energy described as wasted?
When it is dissipated to the surroundings.
What reduces unwanted energy transfers?
Lubrication and thermal insulation.
The higher the thermal conductivity of a material…
…the higher the energy transfer by conduction across the material.
