7th
Grade
Science
Review
!!!
100

All waves transfer _______

What is energy? 

100

I am a wave that requires a medium to travel

What is a mechanical wave?

100

Light travels in a straight path called what?

Rays

100

When a wave hits a surface and the energy of the wave is taken in by the surface

What is absorption? 

100

What are the three classifications of elements on the periodic table?

Metals, Non-metals, Metalloids 

200

The height of the wave

What is Amplitude

200

The amplitude determines how high or low I will be on a sound wave

What is volume?

200

A medium does not have to present for me to travel

What is an electromagnetic wave?

200

When a wave curves or bends as it passes from one medium to another 

What is Refraction? 

200

What is the only non metal on the left hand side of the periodic table? 

Hydrogen

300

The highest point on the wave above the line of origin

What is Crest?

300

As ______ goes up, pitch goes up as well

What is frequency? 

300

When two electrons are brought together, what will be their interaction? Why? 

They will repel because they are like charges and like charges repel. 

300

Two or more of the same or different atoms chemically joined 

Molecule

300

An area with no medium present is called a what? 

A vacuum

400

The amount of wave cycles per second

What is frequency? 

400

While watching a movie in class, Kristian is having a hard time hearing the movie. He wants to ask his teacher to turn up the volume. What part of the sound wave must Kristian ask his teacher to increase?

What is the amplitude?

400

As voltage increases, current will _____________ and resistance will ___________________

Increase, Stay the Same 

400

Two or more different atoms chemically joined

Compound

400

What is the name of the electron that is free enough to flow and create electric current? 

Valence Electron 

500

When graphing a wave, all waves must begin here

What is the line of origin?

500

When wave energy is absorbed, what is it transformed into?

What is HEAT?

500

When the frequency and wavelength changes on the light wave, I also change

What is Color ?

500

All atoms of the same element are what? 

Identical
500

What are two ways we can increase the strength of an electromagnet? 

Increase the number of batteries 

Increase the number of coils 

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