POLARIZED SUNGLASSES

I went to the beach this weekend and as the sun was going down the glare from it was shining off of the wet sand and the water. it was super bright so i wore my polarized sunglasses that stopped the vertically aligned rays from shining to my eyes because the sunglasses are horizontally aligned.

REFRIGERATOR MAGNETS

i think we should have more three day but seems like four day weekends :) alrighty so my mother went to the fair and brought back home some fruits and told me to put them in the refrigerator. well when i went to the fridge, i looked up and saw some magnets holding papers. the magnets on the fridge are magnetized which allows them to exert a magnetic field. the magnet is able to induce a magnetic field on the surface of the refrigerator and thus it sticks together.

COMPASSES

wow this weekend was way too short. but yay for 4-day school weeks :) sooo on saturday night i went running cause i felt like it. it was actually kinda dark except for the yellowy streetlights. the physics concept in this is a compass. in the unlikely situation of getting lost running in your neigborhood when its dark at night, a compass could come in handy. a magnetized compass needle aligns with earth's magnetic poles. the angle between the magnetic and geographic poles of the earth is called the magnetic declination. by using the compass, i would be able to find my way back home safely.

MAGNETS!

in order to get into my building, we need this magnet thing called a fob haha. its this gray round thing that has a magnet inside- see the picture. i guess its good in terms of security cause then strangers cant really get inside. i remember when we first moved in i thought it was really cool. alrighty so now to the physics part of this. the magnet has two poles: north and south poles. in order for my magnet to be attracted to the door's magnet, the north pole must be placed near the south pole of the other. if the two poles are both north or both south, they will repell. the field around the magnets is the magnetic field.