General Fundamental Scientific Principles Questions and Answers

Question 1

A pendulum swings back and forth in a closed system with negligible air resistance. At the highest point of its swing, which statement is true regarding its energy?

Accepted Answer

Kinetic energy is at a minimum; potential energy is at a maximum.

Answer

Kinetic energy is at a maximum; potential energy is at a minimum.

Answer

Both kinetic and potential energy are at their maximum.

Answer

Both kinetic and potential energy are zero.

Question 2

Which of the following correctly describes the central dogma of molecular biology, representing the primary flow of genetic information in most organisms?

Accepted Answer

DNA → RNA → Protein

Answer

Protein → RNA → DNA

Answer

RNA → DNA → Protein

Answer

DNA → Protein → RNA

Question 3

A scientist wants to test the effect of different light colors on the growth rate of a specific type of bean plant. They place identical plants in separate chambers, with each chamber having a different colored light (red, blue, green), but all other conditions (water, soil, temperature) are kept the same. In this experiment, what is the independent variable?

Accepted Answer

The color of the light.

Answer

The growth rate of the bean plants.

Answer

The type of bean plant used.

Answer

The amount of water given to the plants.

Question 4

Which of the following is an example of a chemical change, where a new substance is formed?

Accepted Answer

An iron nail rusting

Answer

Water boiling into steam

Answer

Sugar dissolving in tea

Answer

An ice cube melting

Question 5

According to the theory of plate tectonics, what is considered the primary driving force behind the movement of Earth's lithospheric plates?

Accepted Answer

Convection currents within the Earth's mantle.

Answer

The gravitational pull of the Sun and Moon.

Answer

Erosion and weathering on the Earth's surface.

Answer

The rotation of the Earth on its axis (Coriolis effect).

Question 6

A rocket propels itself upward by expelling hot gases downward. This phenomenon is a direct application of which of Newton's Laws of Motion?

Accepted Answer

Newton's Third Law (Action-Reaction)

Answer

Newton's First Law (Inertia)

Answer

Newton's Law of Universal Gravitation

Answer

Newton's Second Law (F=ma)

A pendulum swings back and forth in a closed system with negligible air resistance.At the highest point of its swing, which statement is true regarding its energy?

A pendulum swings back and forth in a closed system with negligible air resistance.
At the highest point of its swing, which statement is true regarding its energy?