EOU Retest

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a type of mixture where the components are not uniformly distributed, and different parts can be easily distinguished.

Front

What happens to the wavelength of a transverse wave as frequency increases?

Back

As frequency increases, the wavelength decreases.

Front

What does the red shift of light from distant cosmic objects indicate about the universe?

Back

The red shift indicates that the universe is expanding.

Front

How does air pressure differ at two points near the ocean?

Back

There is low pressure at point 1 and high pressure at point 2.

Front

What is the law of conservation of mass in a chemical reaction?

Back

The law of conservation of mass states that the total mass remains constant during a chemical reaction.

Front

Define frequency in the context of waves.

Back

Frequency is the number of waves that pass a given point in a specific amount of time, usually measured in Hertz (Hz).

Front

What is a transverse wave?

Back

A transverse wave is a type of wave where the particle movement is perpendicular to the direction of wave propagation.

Front

Explain the concept of air pressure.

Back

Air pressure is the force exerted by the weight of air above a surface, measured in units like Pascals (Pa).

Front

What is the significance of the balanced equation in a chemical reaction?

Back

A balanced equation shows that the number of atoms of each element is conserved during the reaction.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.