Energy stores Flashcards
(26 cards)
What is an energy store?
An energy store is a system or object that holds energy in a specific form.
Name the three main types of energy stores.
Kinetic energy, gravitational potential energy, and elastic potential energy.
True or False: Chemical energy is a type of energy store.
True
Fill in the blank: The energy stored in an object due to its motion is called ______ energy.
kinetic
What type of energy is stored in a compressed spring?
Elastic potential energy.
What is gravitational potential energy dependent on?
The height of an object above the ground and its mass.
Multiple Choice: Which of the following is NOT an energy store? A) Thermal B) Solar C) Nuclear D) Speed
D) Speed
Short Answer: Provide an example of a chemical energy store.
Batteries.
What is the formula for gravitational potential energy?
GPE = mass × gravity × height (GPE = mgh).
True or False: All energy stores can be converted into kinetic energy.
True
Fill in the blank: The energy stored in food is an example of ______ energy.
chemical
What type of energy does a moving car possess?
Kinetic energy.
Multiple Choice: Which energy store is associated with an object’s position in a gravitational field? A) Kinetic B) Gravitational Potential C) Thermal D) Elastic
B) Gravitational Potential
Short Answer: What energy store is primarily involved in a hydroelectric power station?
Gravitational potential energy.
True or False: Elastic potential energy can be found in rubber bands.
True
Fill in the blank: The energy stored in a battery is a form of ______ energy.
chemical
What happens to energy stores when energy is transferred?
Energy is converted from one store to another.
Multiple Choice: Which energy store is related to temperature? A) Kinetic B) Thermal C) Chemical D) Nuclear
B) Thermal
Short Answer: Describe what happens to the gravitational potential energy of an object as it falls.
It decreases as it converts to kinetic energy.
True or False: Energy cannot be created or destroyed, only transformed.
True
Fill in the blank: A stretched bow possesses ______ energy.
elastic potential
What type of energy store does a battery represent?
Chemical energy.
Multiple Choice: Which of the following is an example of kinetic energy? A) A book on a shelf B) A falling apple C) A stretched spring D) A parked car
B) A falling apple
Short Answer: How is energy stored in a nuclear power plant?
As nuclear energy in the form of nuclear reactions.