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The Structure of Matter
Vocab Review
SURPRISE
Energy & Its Transformation
Waves
100
Which of the following can be made up of two or more atoms of the same element, chemically bonded? a. atom b. mixture c. compound d. molecule
d. molecule
100

What is matter 

anything that takes up space and has mass

100

what are the three subatomic particles?

proton, electron, neutron

100
Name 5 types of energy
mechanical, sound, chemical, electrical, heat, nuclear, light
100
Which of the following is not a medium? a. space b. air c. water d. wood
a. space
200

Explain how compounds are different from mixtures.

Compound = substance of two or more elements chemically bonded; Mixture = physical combination where components keep properties.

200

What is the difference between potential and kinetic energy?

Potential energy is stored energy and Kinetic Energy is energy of motion 

200

Describe how the arrangement and movement of particles differ in solids, liquids, and gases.

Solid (definite shape/volume), Liquid (definite volume, takes container shape), Gas (no definite shape/volume).

200
Which of the following is not a form of potential energy? a. gravitational energy b. chemical energy c. light energy d. nuclear energy
c. light energy
200

Two main types of waves

electromagnetic and mechanical

300

A student is investigating a sample of an element. The student observes that the element is solid, shiny, and can be bent into a new shape. The student is most like observing a. liquid b. hydrogen c. metal

c. metal

300

What happens to particles when heat is added or removed?

phase change 

300

Explain why sound cannot travel in outer space but light can.

Sound needs particles to vibrate (no air in space), light is electromagnetic and can travel through vacuum.

300
The law of conservation of energy states that...
although energy may change from one form to another, energy is neither created nor destroyed
300
The audible property of sound that varies with the frequency
pitch
400

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

 Physical change affects form without changing chemical identity (e.g., cutting paper); chemical change produces new substances (e.g., rusting iron)

400

Which wave behavior is demonstrated when sound travels through walls?  

Transmission

400

How are wavelength, frequency, and amplitude related to energy? 

higher amplitude means more energy, higher frequency means more energy, shorter wavelength more energy

400
An example of chemical energy being transformed into mechanical energy? a. blender b. ceiling fan c. flashlight d. human body
d. human body
400
Name the seven types of EM waves from highest energy to lowest energy
gamma, x-ray, uv light, visible light, infrared light, microwaves, radio waves
500
The Law of conservation of matter states that...
matter cannot be created or destroyed
500

Which wave behavior is demonstrated when you hear an echo? 

reflection

500

A student holds an ice cube in his hand to demonstrate the transfer of thermal energy. Which BEST describes the process of thermal energy the student is demonstrating?

The student is demonstrating conduction, where heat is transferred from his hand to the ice cubes.

500
A lightbulb changes _________ energy to ________ energy
electrical to thermal
500
The bending of light as it passes through a small opening
diffraction