QUIZ 2 STEMGP21

It is as immense as atoms are

small, yet the same laws of physics

describe both, along with all the rest of

nature—an indication of the underlying

unity in the universe.

• Galaxies

• Stars

It is as immense as atoms are

small, yet the same laws of physics

describe both, along with all the rest of

nature—an indication of the underlying

unity in the universe.

• Galaxies

• Stars

How many seconds are there in a day?

• 86 400

• 8 640

• 864

• 86.4

_______ is devoted to the understanding

of all natural phenomena.

• Physics

• Chemistry

a number is the power of 10 that most closely approximates

it. Thus, the order of magnitude refers to the scale (or size) of a value.

• Order of Magnitude

• Vector

originally defined as 1/10,000,000 of the distance from

the Earth’s equator to the North Pole measured on the circumference through Paris.

• Meters

• Seconds

• Lightyear

the mass of a liter. It is currently defined as

the mass of a platinum-iridium kilogram sample maintained by the Bureau International

des Poids et Mesures in Sevres, France.

• Grams

• Liters

• Kilograms

defined as the duration of 9,192,631,770 periods

of the radiation corresponding to the transition between the two hyperfine levels of the

ground state of the cesium-133 atom.

• Mol

• Seconds

the amount of electric charge passing a point in an

electric circuit per unit time.

• Amphere

• Volts

• Ohm

• Columb

the unit of the thermodynamic temperature scale.

• Kelvin

• Celcius

• Farenheight