Question 1:

The energy stored in coal is in the chemical bonds of its carbon-based molecules. When coal is burned, these bonds break, releasing energy as heat.

Correct answer: A. Chemical energy.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 2:

In physics, energy stores include chemical, gravitational potential, elastic (or strain), kinetic, thermal, magnetic, and nuclear energy.
Electrical energy, however, is typically considered a form of energy transfer (via a current) or a way energy is carried, not a store in itself — though batteries store chemical energy that can be converted into electrical energy.

Therefore, the one not classed as a store is:

C. Electrical energy.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 3:

The question asks for the energy store associated with the force between charges (protons and electrons are charged particles).

• Nuclear energy relates to forces within the atomic nucleus (protons and neutrons), not directly between electrons and protons in an atom.

• Electrostatic energy is the energy stored due to the separation of positive and negative charges (electric potential energy).

• Magnetic energy relates to magnetic fields, not static charges.

• Chemical energy involves rearrangements of electrons in bonds, but the question specifically asks for the energy store due to the force between charges — which is electrostatic.

Correct answer: B. Electrostatic energy.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 4 & 5:

An arrow fired from a bow.

• Initial stored energy: Elastic potential energy (in the stretched bowstring/bow limbs)

• Final stored energy: Kinetic energy (of the moving arrow)

Initial: Elastic potential → Final: Kinetic

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 6 & 7:

A pan of water on a gas heater.

• Initial stored energy: Chemical energy (in the gas before burning)

• Final stored energy: Thermal (internal) energy (in the water, as temperature rise)

Initial: Chemical → Final: Thermal

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 8 & 9:

A ball thrown upwards (after it leaves the hand to its highest point).

• Initial stored energy: Kinetic energy (moving upward)

• Final stored energy: Gravitational potential energy (at highest point, momentarily stationary)

Initial: Kinetic → Final: Gravitational potential

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 10:

The question refers to a truck losing kinetic energy — typically due to braking, air resistance, or friction. In such cases, the lost kinetic energy is mainly converted into thermal energy (heat) in the brakes and surroundings, often with some sound energy as well.

However, if only one answer is to be chosen, the most general and major form of dissipation is:

A. thermal energy.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.