Science Simulation Practice

Front

What is resonance in sound waves?

Back

Resonance is the phenomenon where an object vibrates at a specific frequency, amplifying sound waves, as seen in the Tacoma Narrows Bridge or a wine glass.

Front

What is a major concern regarding nuclear energy?

Back

A major concern is how to store the waste products safely, as they can remain hazardous for thousands of years.

Front

What causes eutrophication in water bodies?

Back

Eutrophication is primarily caused by excess nutrients, particularly nitrogen and phosphorus, from agricultural runoff, leading to overgrowth of plants and algae.

Front

How do you calculate density?

Back

Density (D) is calculated using the formula D = M/V, where M is mass and V is volume.

Front

What happens to deer and bird populations with decreased rainfall?

Back

If global warming causes decreased rainfall, leading to fewer trees and grasses, both deer and bird populations would likely decrease due to reduced food availability.

Front

Define frequency in the context of sound waves.

Back

Frequency is the number of vibrations or cycles per second of a sound wave, measured in Hertz (Hz).

Front

What is the principle of conservation of mass?

Back

The principle of conservation of mass states that mass cannot be created or destroyed in a closed system during a chemical reaction.

Front

Explain the greenhouse effect.

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil, which supports plant growth.

Front

What is the difference between renewable and non-renewable resources?

Back

Renewable resources can be replenished naturally over time (e.g., solar energy), while non-renewable resources exist in finite amounts and cannot be replaced (e.g., fossil fuels).