Download MOMS SM2 2015 Test

MOMS Science Mania 3 (55 minutes)
1. Salt dissolved in water is an example of...
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A. New substance
B. Mixture
C. Compound
D. None of the above
2. If the number of neutrons changes in an atom it becomes...
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A. An Ion
B. An Isotope of the element
C. A new element
D. A compound due to chemical reaction
3. The slower a liquid flows...
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A. The darker its color
B. The lower its viscosity
C. The more acidic it is
D. The higher its viscosity
4. Which one of the following sublimates at normal temperature and pressure?
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A. Ice
B. Dry Ice
C. No ice
D. Ice-cream
5. The Density of a substance is...
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A. mass/volume
B. force/area
C. force x distance
D. mass x acceleration
6. Which of the following statements are true?
○ A. Electrons are negatively changed particles & reside in the nucleus of an atom
○ B. Neutrons circle around the nucleus of an atom, thus there is no charge on
them
○ C. Proton and neutron reside in the nucleus and form the heaviest part of an
atom
○ D. Proton and neutron reside in the nucleus and form the lightest part of an atom
7. What group of The Periodic Table does Hydrogen belong to?
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A. Group 1
B. Group 2
C. Group 3
D. None
8. Metalloids are also..
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A. Noble Gases
B. Halogens
C. Semi-conductors
D. Non Metals
9. Atomic Number is:
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A. Total number of protons, neutrons and electrons in and atom
B. Total number of protons and neutrons in and atom
C. Total number of protons in and atom
D. Total number of electrons and neutrons in and atom
10. What atomic particles are responsible for chemical reactions
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A. The protons
B. The neutrons
C. The electrons in all atomic shells
D. The electrons in the valance shell
11. An object at rest remains at rest and an object in motion maintains its velocity unless it
experiences an unbalanced force is
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A. Alexander Graham Bell's Law
B. Einstein's Special Theory of Relativity
C. Newton's 1st law of Motion
D. Pascal's Law
12. If a force of 10N is applied on an object that accelerates at 10 m/s 2 . What is the mass of the
object?
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A. 1000 g
B. 2 Kg
C. 3 Kg
D. 100 Kg
13. A 5 kg object falls from a height of 20 m. Assuming that acceleration due to gravity is 10
m/s 2 , find the speed at which it hits the ground.
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A. 100 m/s
B. 200 m/s
C. 10 m/s
D. 20 m/s
14. If the mechanical advantage of a simple machine is 2 and the output force 10N. What is the
input force exerted?
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A. 5N
B. 10N
C. 50N
D. 100N
15. Which of the following statements are true?
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A. Convex lens converges light and concave mirror also converges reflected light
B. Convex lens diverges light and concave mirror also diverges reflected light
C. Convex lens converges light and concave mirror diverges reflected light
D. Convex lens diverges light and concave mirror converges reflected light
16. Power in a circuit is represented by P = I x V Watts; A circuit is connected to a 9 Volt battery
and has a total resistance of 0.9 ohms. What is the power drawn by this circuit?
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A. 1000 Watts
B. 1 Watt
C. 9 Watts
D. 90 Watts
17. Given 2 light bulbs used in a series and a parallel circuit, if 1 bulb goes out, which one will
still be a closed circuit and glow the other light bulb?
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A. The series circuit
B. The parallel circuit
C. The series and parallel circuits
D. None of the above
18. Electric transformers can...
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A. Increase the voltage
B. Decrease the voltage
C. Increase or decrease voltage
D. Break the circuit
19. Electromagnets become...
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A. permanent magnets when electricity is passed through them.
B. temporary magnets when electricity is passed through them.
C. super permanent magnets
D. special magnets over time and are only found in Magnesia.
20. The energy transfer as heat from fire in the form of electromagnetic waves, which includes
infrared radiation, visible light, and ultraviolet rays, is called
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A. Conduction
B. Convection
C. Radiation
D. Transmission
21. It is faster to cook food high up on the mountains because...
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A. Water in food boils at lower temperatures than 100 0 C at higher altitudes.
B. More pressure at a high altitude cooks the food faster.
C. The closer to the sun you are, the faster the cooking occurs.
D. None of the above
22. Suppose that waves passing by a post at a dock have a wavelength of 10 m, and 3 waves pass
by in 30 seconds. What is the wave speed?
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A. 10 m/s
B. 5m/s
C. 1 m/s
D. 3 m/s
23. The phrase "survival of the fittest" is an alternate phrase expressing which of the following
principles?
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A. Natural Selection
B. Mutation
C. Inheritance of Acquired Characteristics
D. Mendelian Inheritance
24. The theory of plate tectonics helps scientists explain...
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A. Why the Earth's mantle is more dense than its crust.
B. How ocean currents move over the Earth's surface.
C. How earthquakes and volcanic eruptions occur.
D. Why hurricanes occur.
25. A cell membrane is...
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A. Permeable
B. Semi permeable
C. Non permeable
D. None of the above
26. The functional unit of heredity is the ______.
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A. Chromosome
B. Protein
C. Gene
D. Nucleus
27. What is known as the powerhouse of a cell?
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A. Vacuole
B. Mitochondria
C. Lysosome
D. Cytoplasm
28. An example of a seedless vascular plant is..
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A. A vegetables
B. A Pine tree
C. A Moss
D. Fern
29. What is the difference between Gymnosperms and Angiosperms Plants?
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A. Gymnosperms bear no seed but Angiosperms do
B. Gymnosperms bear no flowers but Angiosperms do
C. Angiosperms bear no seed but Gymnosperms do
D. Angiosperms bear no flowers but Gymnosperms do
30. Which ones of the following do not have a backbone?
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A. Snakes
B. Fish
C. Insects
D. Lizards
31. In what part of body is the Tibia located?
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A. Chest
B. Head
C. Legs
D. Hands
32. What anatomical structures in the lungs are terminals for O 2 and CO 2 gas diffusion between
the respiratory system and the circulatory system.
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A. Windpipe
B. Alveoli
C. Bronchioles
D. Diaphragm
33. Which of the following rock layers are the youngest?
D
D
A
C
C
B
B
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A. Layer A
B. Layer B
C. Layer C
D. Layer D
34. Which of the below pictures best represents the rain shadow effect?
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○ B.
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○ D.
35. What is the eye of a hurricane?
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A. The violent center of a hurricane.
B. The calm center of a hurricane.
C. The part of a hurricane that creates winds.
D. There is no such thing as the eye of a hurricane.
36. The Pluto is a...
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A. Planet
B. Dwarf Planet
C. Exo-planet
D. Comet
37. The Asteroid belt is between...
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A. Earth and Moon
B. Mars and Jupiter
C. Jupiter and Saturn
D. Beyond Pluto
38. Summer happens in Northern Hemisphere when...
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A. Earth is closest to sun
B. Northern Hemisphere is tilted towards sun
C. Southern Hemisphere is tilted towards sun
D. None of the above
39. Solar eclipse happen when...
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A. The Moon is between the Sun and the Earth casting shadow on the Earth.
B. The Earth is between the Sun and the Moon casting shadow on the Moon.
C. The Earth and the Moon cast shadow on each other.
D. The Sun is between the Earth and the Moon.
40. One of the major functions of the large intestine is to
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A. absorb nutrients and minerals from food
B. secretes acid and enzymes that digest food
C. absorb water from the remaining indigestible food
D. filter the blood coming from the digestive tract