Unit #1: Physics Basic Knowledge Workseet

DE Physics second day of school test

yotta (Y)

10²⁴

zetta(Z)

10²¹

exa(E)

10¹⁸

peta(P)

10¹⁵

tera(T)

10¹²

giga(G)

10⁹

mega(M)

10⁶

kilo(K)

10³

hecto(h)

10²

deca(da)

10¹

deci(d)

10^-1

centi(c )

10^-2

mili(mi)

10^-3

micro(μ)

10^-6

nano(n)

10^-9

pico(p)

10^-12

1 angstrom

1.0E-10 m

1 mm

1,000 µm

1 µm

100,000 nm

1nm

10 angstroms

1 m

100 cm

1 m

1,000 mm

1 m

3.28084 ft

1 inch

2.54 ft`

1 mile

5,280 ft

1 mile

1760 yards

1 mile

1.60934 km

1 km

1,000 m

1 ly

9.641 e+ 15 m

1 hour

3,600 s

1 day

86,400 s

1 year

3.154 e + 7 s

1 cm³

1 mL

1 kg

2.205 lbs.

Earth gravity, g

9.81 m/s²

Moon gravity

1.63 m/s²

Mars gravity

3.7 m/s²

Venus gravity

8.87 m/s²

Earth radius

6,371 km

Earth Radius

3963.19 mi

earth circumference is approximately

24, 902 miles

How long does the earth take to complete one full rotation on its axis?

24 hours

How fast does the Earth rotate?

1,037 mi/hr

Earth-Moon distance

238,900 mi

Earth-Moon Distance

384, 400 km

Earth-Sun distance

93,000,000 miles

Earth-Sun Distance

149,000,000 km

What is an astronomical unit(AU)? (full sentence)

A unit length approximately equal to the average distance between Earth & the Sun

What is the approximate radius of the solar system in AU’s?

120 AU

What is the INternational Space Station(ISS) average orbiting distance from Earth’s surface?

250 mi

What is the International Space Station (ISS) average orbiting distance from Earth’s Surface

400 km

What large city is the same distance from Ashburn as the ISS is from the surface of the Earth?

NYC(New York City)

Moon mass

7.348e+22 kg

Earth Mass

5.972e+24 kg

Jupiter Mass

1.899e + 27 kg

Sun mass

1.989e + 30 kg

Define a light year(full sentence)

unit of measurement of astronomical distance equivalent to the distance light travels in a year(9.4607 × 10^12 km)

How many ly’s is the closest star, not including the sun?

4.2465 ly

What is the name of this star?

Proxima centauri

What is the name of our galaxy?

Milky way

how many stars are in our galaxy?

100-400 billion

How far across (diameter) is our galaxy?

105,700 ly

What is an exoplanet? (full sentence)

A planet that’s beyond our solar system

How many exoplanets have been discovered?(as of 8/1/22

5,000

What is the habitable zone of a star?(full sentence)

The distance from a star at which liquid water exist on orbiting planets’ surfaces.

How many of these exoplanets are in the habitable zone?

63

electron charge

6.24e + 18 C

electron mass

9.10938e-31 kg

proton mass

1.67262192 × 10^-27 kg

proton charge

1.602 × 10^-19 C

neutron mass

1.6749286 e-27 kg

neutron charge

0 C

What is the Bohr radius (full sentence)

It’s a physical constant that represents the most likely distance between an electron and the nucleus in a hydrogen atom in its ground state

Bohr radius

0.0529177 nm

What is the volume of blood in an average adult human body?

10 pints

What is the normal blood pressure for an adult?

120/80 mmHg

What are the units of blood pressure is measured?

mm Hg

What is the name for the top number in a blood pressure measurement?

Systolic

What is the name for the bottom number in a blood pressure measurement?

Diastolic

What does the top number in a blood pressure measurement measure?

Measures the force the heart exerts on the walls of the arteries per beat

What does the bottom number in a blood pressure measurement measure?

Measures force the heart exerts on the of the arteries between beats

What is the average internal temperature of an adult human?

98.6 °F

What is the average resting heartbeat range of an adult human?

60-100 bpm/min

As a human improves their physical conditioning what happens to their average resting heart beat? (full sentence)

It increases your resting heart beat as their fitness increases