PMA 2 Review (Light Waves, Sound Waves / Theories Vs Laws)

PMA 2 Review (Light Waves, Sound Waves / Theories Vs Laws)

Light and Sound Waves Review

Light Behaviors

• Absorbed – the transfer of light energy to particles of matter.

• Reflected – the bouncing back of a ray of light that hit a surface

• Transmitted – When light moves through a transparent material

• Refracted – the bending of a wave as it passes between two substances in which the speed of wave differs.

Multiple Choice

How is sound produced?

• By the vibration of particles

• y the transfer of particles

Multiple Choice

An opaque object taking in light is called...

• a rainbow

• dark colors

• refraction

• absorption

Multiple Choice

• reflection

• refraction

Multiple Choice

• reflection

• refraction

Multiple Choice

• reflection

• refraction

Multiple Choice

We are able to see a mirrored image of the mountains on the water through...

• refraction

• reflection

Multiple Choice

How is white light able to separate through a prism?

• the light is being absorbed

• the light is being refracted

• the light is being reflected

Multiple Choice

when light is stored inside of an object and turns into heat energy

• absorbtion

• refraction

• reflection

Multiple Choice

When light hits a translucent object and bends:

• absorbtion

• refraction

• reflection

Multiple Choice

When light bounces off of an object into a different direction:

• absorbtion

• refraction

• reflection

Multiple Choice

Sound waves have the fastest speed when traveling through a ___.

• solid
• liquid
• gas
• tornado

Multiple Choice

Sound waves have the best quality when traveling through a ___.

• solid
• liquid
• gas
• tornado

Multiple Choice

A sound wave requires a medium, or material to travel through.

• True
• False

Multiple Choice

A sound wave can travel through a vacuum or empty space.

• True
• False

Multiple Choice

This type of material allows most light to pass through but forms a blurry image, like looking through a fogged up window.

• opaque
• translucent
• transparent
• echo

Multiple Choice

The speed of sound waves depends on which of the following conditions?

• temperature and the material they travel through
• type of sound wave
• altitude

Multiple Choice

Sound waves are created by vibrations.

• True
• False

Multiple Choice

The bouncing back of a light ray after hitting a surface is known as...

• diffraction
• refraction
• rebounding
• reflection

Multiple Choice

Sound waves move faster than light waves.

• True
• False

Multiple Choice

Theory or law?

Tectonic ________ of Geology: the surface of the earth is made of tectonic plates, which move slowly. Explains why mountains are formed, earthquakes happen, etc.

• Theory

• Law

Multiple Choice

Theory or law?

Atomic _____ of matter: All matter is made up of atoms. Explains why matter behaves a certain way.

• Theory

• Law

Multiple Choice

Theory or law?

The cell _________ of living things: Living things are made of cells; explains how things grow and live.

• Theory

• Law

Multiple Choice

Theory or law?

_________ of Thermodynamics: Explains that matter can never be created or destroyed.

• Theory

• Law

Multiple Choice

The law of universal gravitation states that both mass and distance of objects affect the gravitational force between them. Gravitational force increases as the mass of the objects increase. Gravitational force decreases as distance between the objects increases. Why are these statements considered scientific law, and not scientific theory?

• The statements tells what happens, and not why it happens.

• The statements involve mass and distance measurements.

• The statements explain the attractive force between two objects.

• The statements predict what will happen under certain conditions.

Multiple Choice

Theory or Law? Is a DESCRIPTION of what a scientists expects to happen every time under a certain set of conditions.

• Law

• Theory

Multiple Choice

Theory or Law? Is a well-tested EXPLANATION for a wide range of observations and experimental results.

• Law

• Theory

Multiple Choice

Theory or Law? Changes with new observations.

• Theory

• Law

Multiple Choice

Theory or Law? Predicts what will happen in the natural world.

• Law

• Theory

Multiple Choice

The validity of scientific theories and laws depends on evidence. Which of the following statements of evidence supports a law rather than a theory?

• Electrons orbit the nucleus of an atom within a certain radius.

• DNA analysis reveals that a modern species is related to an extinct species.

• Seafloor spreading occurs at a rate of three centimeters per year in the mid-Atlantic.

• The amount of matter in a closed system is the same at the start of a reaction as at the end of the reaction.

Multiple Choice

Scientists create both scientific theories and scientific laws as they make observations and conduct experiments about the natural world. Which of the following statements most accurately compares the difference between scientific theories and scientific laws?

• Scientific laws are based on evidence, while scientific theories are not.

• Scientific theories involve only biology, while laws involve all types of science.

• Scientific theories involve mathematical equations, while scientific laws are based on observations.

• Scientific theories are ideas that explain natural events, while scientific laws more reliably predict natural events.