CMAS Science Review Fun!

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Example: Rock salt broken into smaller pieces.

Front

What is pitch in sound waves?

Back

Pitch is the perceived frequency of a sound, determining how high or low it sounds. It is related to the frequency of the sound wave.

Front

What is frequency in sound waves?

Back

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

Front

What is the relationship between speed and forces acting on an object?

Back

An object can travel at a constant speed if the forces acting on it are balanced.

Front

What is gravity's effect on a comet's speed as it moves closer to the Sun?

Back

As a comet moves closer to the Sun, gravity increases, causing the comet to speed up.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken. Formula: Speed = Distance / Time.

Front

What is an example of a chemical change?

Back

An example of a chemical change is wood burning into ash, which alters the chemical composition of the wood.

Front

What is the low point of a wave called?

Back

The low point of a wave is called a trough.

Front

What is the distance between two consecutive crests of a wave?

Back

The distance between two consecutive crests is called the wavelength.

Front

What happens to an object's speed when it travels uphill?

Back

An object may slow down when traveling uphill due to the forces acting against it, such as gravity.