PS Unit 5 Flashcards

Front

What is an electromagnet?

Back

An electromagnet is created when a wire is wrapped around certain iron-bearing metals (like an iron nail) to form a closed circuit that electricity is passed through, producing a magnetic field.

Front

How can you make an electromagnet stronger?

Back

Use a larger iron nail or bolt, add more coils around the nail or bolt, make the coils close together, and increase the battery voltage.

Front

Where are electromagnets used?

Back

Electromagnets are used in MRI machines, speakers, washing machines, motors, and generators.

Front

What is a motor?

Back

A motor is a device that converts electrical energy to mechanical energy, used in household devices like washing machines, vacuum cleaners, microwaves, and ceiling fans.

Front

What is a generator?

Back

A generator is a device that converts mechanical energy to electrical energy, often used as a backup power source in homes.

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as electrical energy to thermal energy in a toaster.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in a battery, food, and fossil fuels, stored in the bonds of atoms and molecules.

Front

What is radiant energy?

Back

Radiant energy is the energy given off by a light source, like a light bulb or the sun, often accompanied by thermal energy.

Front

What is thermal energy?

Back

Thermal energy is the internal energy in substances, often experienced as heat.

Front

What is nuclear energy?

Back

Nuclear energy is the energy stored in the nucleus of an atom, released through fission or fusion.