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Physical Science

PHYSICAL SCIENCE (5)

1)  Which one of these revolving weather is the smallest?
a.  Hurricane
b.  Tornado
c.  Tropical cyclone
d.  Typhoon

2)  What happens when the rate of evaporation equals the rate of condensation?
a.  Clouds form
b.  Precipitation occurs
c.  The humidity decreases
d.  The dew point is reached

3)  Which is the cause of change of seasons?
a.  The roation of the Earth
b.  The tilt of Earth's axis
c.  The rain-shadow effect
d.  The sizes and shapes of land surface features

4)  What causes changes in weather?
a.  Cloud formation
b.  Water evaporation
c.  Air humidity
d.  Air masses interaction

5)  What part of the atmosphere protects Earth's suface from harmful ultraviolet radiation?
a.  Exosphere
b.  Mesosphere
c.  Stratosphere
d.  Troposphere

6)  The aurora borealis and aurora australis are caused by the interaction between charged particles and Earth's magnetic field. What layer of Earth's atmosphere contains these particles?
a.  Exosphere
b.  Mesosphere
c.  Ozonosphere
d.  Thermosphere

7)  Which is a depp layer of electrically charged molecules and atoms that reflects radio waves?
a.  Exosphere
b.  Ionosphere
c.  Radiosphere
d.  Troposphere

8)  The Earth completes one revolution around the sun in 365 1/4 days. Compared to earth, how long does it takes Mercury to complete one revolution?
a.  Less than the Earth
b.  Greater than the Earth
c.  The same as the Earth
d.  Cannot be determined

9)  What two properties of stars are being directly compared in the Hertzsprung-Russel Diagram?
I.  Size
II.  Temperature
III.  Luminuosity
IV.  Density
a.  I and II
b.  II and III
c.  III and IV
d.  I and IV

10)  How is the atmospheric pressure of Mars when compared to the atmospheric pressure of the Earth?
a.  Half as much as that of that Earth
b.  About the same as the Earth
c.  About 1/100th that of the Earth
d.  About 100 times as great as the Earth

11)  Which of the following statements is TRUE for both Saturn and Jupiter?
a.  Both rotate faster than the Earth
b.  Both rotate slower than the Earth
c.  Only one rotates rapidly while the other rotates very slowly
d.  Their periods of rotation are linked to their period of revolution

12)  According to Kepler's Laws, what is the shape of all orbits of the planets?
a.  Ellipse
b.  Hyperbola
c.  Oblate spheroid
d.  Parabola

13)  What is the first successful space station program that tested the ability of astronauts to work for long periods and studied their body responses to weightless conditions?
a.  Apollo 11
b.  Sputnik 1
c.  Salyut
d.  US Skylab

14)  The universe is estimated to be between 10 and 20 billion years old. This estimate is based on the value of which constant?
a.  Speed of light
b.  Hubble constant
c.  Mass of the Earth
d.  Mass of the electron

15)  On which of the following planets would the sun rise in the west?
a.  Mars
b.  Jupiter
c.  Saturn
d.  Venus

16)  Which of the following describes an albedo?
a.  brightness of the star
b.  phase changes of a planet
c.  wobbling motion of a planet
d.  amount of light a planet reflects

17)   Where are most asteroids located?
a.  between Earth and Mars
b.  between Mars and Venus
c.  between Mars and Jupiter
d.  between Jupiter and Saturn

18)  Which refers to the precession of the Earth?
a.  Change from night to day
b.  Earth's motion around the sun
c.  Effect of the moon on the Earth's orbit
d.  Change in orientation of the Earth's axis