OGET Science/Social Studies Quiz

Which of the following is a fundamental principle of scientific research?

• conducting experiments to confirm accepted theories

• submitting findings to peer review

• assuming previous research is flawed

• doing research with practical applications

Which of the following is the smallest component that makes a given compound unique?

• atom

• proton

• molecule

• electron

Newton's third law of motion states that whenever an object exerts a force on a second object, the second object exerts a force on the first object. That second force is equal in magnitude and opposite in direction to the first force. Which of the following situations best illustrates this concept?

• A mechanic sprays oil on a screw that is difficult to turn, and he is then able to turn the screw.

• A baseball player finds that by using a heavier bat, a struck ball can be hit farther.

• A car is turning left around a corner, and the occupants of the car feel as though they are being pushed to the right.

• A child on a skateboard that is not moving throws a basketball, causing the skateboard to move backward.

When a physical change takes place, no new substances are produced. In which of the following situations is a physical change taking place?

• A piece of metal on a car begins to rust.

• A banana in a bowl ripens and turns yellow.

• A piece of paper burns in a candle flame.

• Ice on the surface of a lake begins to melt.

Which of the following is the best example of homeostasis?

• A rabbit sees a predator and stops moving.

• A bee visits a flower to get pollen.

• A bee visits a flower to get pollen.

• A dog is cold and begins to shiver.

The Internet was originally conceived as a communications network for which of the following applications?

• a reliable communications system in times of national disasters

• a free communication system for the general public

• an international financial communications network

• a communication system for rural and isolated communities

In 1922, chemists discovered that some substances, such as rubber, consisted of long, repetitive chains of short, repeating molecular building blocks. This was the discovery that triggered the beginning of which of the following industries?

• plastics

• silicon chips

• aluminum

• petroleum

The siren of an emergency vehicle seems to change pitch as it passes an observer. This phenomenon is used in which of the following technologies?

• voice-recognition software

• Doppler radar

• wireless communication

• photovoltaic cells

There has been some concern that in the future insurance companies may refuse to insure some people at birth because of their predisposition to certain medical conditions later in life. This concern is largely based on advances in which of the following areas?

• statistical surveying

• hybridization studies

• DNA sequencing

• cloning

Paintings created by artists who were part of the Impressionist movement most commonly depict the:

• realm of the unconscious.

• geometric shapes of nature.

• plight of the oppressed.

• effects of natural light.