Physical Science Sample Questions
Matter
The periodic table classifies elements according to…
1. their physical and chemical similarities *
2. their names
3. their chemical symbols
4. how frequently they can be found in nature
Many chemical reactions go faster at a higher temperature because…
1. a catalyst is present
2. particles are moving more quickly*
3. there are more molecules present
4. most chemical reactions are exothermic
The first four compounds in a chemical series are:
CH4 Ý C2H6 Ý C3H8 Ý C4H10 Ý ______
What would be the next member of the series?
1. C5H10
2. C5H12 *
3. C6H12
4. C6H14
Force
When a book is at rest on a table, the force of gravity is balanced by…
1. the inertia of the book
2. the mass of the book
3. the force of the table on the book *
4. the weight of the book on the table
Energy
As the frequency of a wave is increased, it’s wavelength with be…
1. increase
2. decrease *
3. remain the same
- first increase, then decrease in a repeated cycle
When an apple falls from the tree, the energy is converted from…
- kinetic to electromagnetic
- potential to kinetic *
- chemical to potential
- kinetic to gravitational
When energy is changed from one form to another in biological systems, there is often a loss of usable energy from the system. Typically this energy is lost in the form of…
- light
- heat
- kinetic energy
- potential energy
Life Science Sample Questions
Organisms
The movement of water molecules through a semi-permeable membrane, from an area of greater concentration of water to an area of lesser concentration is called…
- diffusion
- meiosis
- metabolism
- osmosis *
Heredity
If a plant with white flowers (hh) is crossed with a plant with pink flowers (Hh) the offspring will probably show which of the following flower colors?
- 25% will be white, 75% will be pink
- 50% will be white, 50% will be pink *
- 75% will be white, 25% will be pink
- 100% will be white, none will be pink
Diversity/ Interdependence
In a particularly good growing season, the plants in the system may grow much more than in ordinary years. The short term results is likely to be…
- a decrease in animal populations at all levels
- no change in animal populations
- an increase in animal populations only at level two *
- an increase in animal populations at all levels
The greatest total amount of food energy is found in the organisms at level
- 1 *
- 2
- 4
- 6
Which of these most closely relates to the concept of natural selection?
- Population explosions
- Asexual reproduction
- Food webs
- Survival of the fittest *
A number of insecticides do no kill insects as effectively as they once did. This is probably because of
- the environment has changed
- some insects were tolerant to the pesticide and survived to produce offspring *
- the insecticides are from different manufacturers
- the climate is becoming warmer
Earth and Space Science
The Dynamic Earth
What is the immediate outcome of increased consumption of a resource such as petroleum?
- No effect. More petroleum will be created
- The price of petroleum will decrease
- Petroleum will become scarcer since it is non-renewable *
- No effect. Other resources will take the place of petroleum
Some scientists have suggested that growing more trees will help to slow down the process of global warming. Why might this be true?
- Trees remove excess carbon from the soil
- Trees absorb excess carbon dioxide (CO2) from the atmosphere *
- Trees removes excess water from the soil
- Trees stabilize soil and prevent erosion
The ozone layer affects the Earth’s surface mainly by
- eastern plain *
- eastern foothills
- craggy mountains
- western foothills
In Earth in Space
A model of the solar system and a simple model of an atom share certain properties of forces. Which of the following might be some of these properties?
- One of the components in much more massive than the others and exerts and attractive force on each of the other components *
- One of the components is much more massive than the others and exerts a force on each of the other components that is perpendicular to the line connecting their centers
- All the components are equally massive, are far more apart, and attract each other
- All the components are equally massive, are close together, and repel each other
All objects in our solar system interact with each other through gravity. What could change if Mars were removed from our solar system?
- All of the following could change
- The orbits of the moons
- The temperature of the planets
- The orbits of the planets *
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