New York State Science Exam

Front

What type of simple machine is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects.

Front

What happens to the molecules in a liquid when the temperature increases?

Back

The molecules move faster and spread farther apart.

Front

What is the primary reason for seasonal changes in daylight hours?

Back

The tilt of the Earth's axis relative to its orbit around the Sun.

Front

What do folded rock layers indicate in geology?

Back

Folded rock layers indicate that the rocks have been subjected to pressure and have deformed.

Front

What is the major source of energy for electricity production in a hydroelectric facility?

Back

Moving water is the major source of energy for electricity production in a hydroelectric facility.

Front

Define a lever in simple machines.

Back

A lever is a rigid bar that rotates around a fixed point called the fulcrum.

Front

What is a pulley and how does it work?

Back

A pulley is a wheel on an axle designed to support movement and change of direction of force.

Front

Explain the concept of thermal expansion.

Back

Thermal expansion is the increase in volume of a substance as its temperature rises.

Front

What is the role of the Earth's rotation in day and night cycles?

Back

The Earth's rotation on its axis causes day and night cycles as different parts of the Earth face the Sun.

Front

What is the definition of a wheel and axle?

Back

A wheel and axle is a simple machine consisting of a larger wheel attached to a smaller axle, allowing for easier movement.