Question

thermal; nuclear; radiant; mechanical; chemical; electrical
a ball on top of a hill. stored in food.
the energy in hydrogen. given off by the sun.
used to run a clock. a car going 50 mph.
a hot stove. a fires heat.
uranium in reactors. a fires light.

Explanation:

• A ball on top of a hill: Has potential energy due to its position. This is Mechanical energy (gravitational potential energy is a form of mechanical energy).
• Stored in food: Food contains Chemical energy (stored in the bonds of molecules like carbohydrates, proteins, and fats).
• The energy in hydrogen: Hydrogen can be used in nuclear - related processes (like fusion). So, it is Nuclear energy.
• Given off by the sun: The sun emits energy in the form of electromagnetic radiation. This is Radiant energy.
• Used to run a clock: A clock is often run by electrical energy (from a battery or electrical outlet). So, it is Electrical energy.
• A car going 50 mph: A moving car has kinetic energy. Kinetic energy is a form of Mechanical energy.
• A hot stove: A hot object has Thermal energy (due to the motion of its particles).
• A fire’s heat: Heat is a form of Thermal energy.
• Uranium in reactors: Uranium is used in nuclear reactors. So, it is Nuclear energy.
• A fire’s light: Light is a form of Radiant energy.

Answer:

1. Mechanical
2. Chemical
3. Nuclear
4. Radiant
5. Electrical
6. Mechanical
7. Thermal
8. Thermal
9. Nuclear
10. Radiant