In which objects would you find chemical energy? Food, gasoline, and the sun. Food, gasoline, and the sun. Food, Gasoline, and batteries. Food, Gasoline, and batteries. Boat propeller, electrical outlet, and food Boat propeller, electrical outlet, and food Boat propeller, electrical outlet, and a lamp. Boat propeller, electrical outlet, and a lamp.

Coal: Combustion reaction converts chemical energy into light and heat.

Wood: Combustion reaction converts chemical energy into light and heat.

Petroleum: Can be burned to release light and heat or changed into another form of chemical energy, such as gasoline.

Chemical batteries: Store chemical energy to be changed into electricity.

Biomass: Combustion reaction converts chemical energy into light and heat.

Natural gas: Combustion reaction converts chemical energy into light and heat.

Food: Digested to convert chemical energy into other forms of energy used by cells.

Cold packs: Chemical energy is absorbed in a reaction.

Propane: Burned to produce heat and light.

Hot packs: Chemical reaction produces heat or thermal energy.

Photosynthesis: Changes solar energy into chemical energy.

Cellular respiration: A set of reactions that changes the chemical energy in glucose into chemical energy in ATP, a form our bodies can use.

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.