The temperature at which matter changes state from solid to liquid at atmospheric pressure.
What is melting point.
100
Machines cannot _______ energy.
What is create?
100
High and low points of a wave.
What is crest and trough.
100
This describes all the wavelengths of light, visible and not visible.
What is electromagnetic spectrum.
200
The law of conservation of matter.
What is matter can neither be created nor destroyed.
200
When a liquid is heated, it eventually reaches a temperature at which the vapor pressure is large enough that bubbles form inside the body of the liquid. This temperature is called the ____________ _________. Once the liquid starts this process, the temperature remains constant until all of the liquid has been converted to a gas.
What is boiling point.
200
Name at least three of the simple machines.
What is lever, screw, wedge, pulley, wheel & axle, inclined plane.
200
Height of wave from resting point.
What is amplitude.
200
Name the colors of visible light.
What is ROY G. BIV
Red, orange, yellow, green, blue, indigo, violet
300
The state of matter where atoms are most spread apart, and the state of matter where atoms are most densely packed together.
What is gas and what is solid.
300
A solution is made of these two parts.
What is solute and solvent.
300
Machines must do work. Name the formula for work.
What is force x distance.
300
Waves that move parallel to the medium.
What are longitudinal waves?
300
1. These electromagnetic waves have the longest wavelengths and the lowest frequencies.
2. These electromagnetic waves have the shortest wavelengths and the highest frequencies.
What is
1. radio waves
2. gamma rays
400
Molecules get excited and move around when this is applied.
What is heat?
400
Part 1: This is the universal solvent.
Part 2: A solution is said to be ________ if no more solute can be dissolved into the solvent.
What is water; what is saturated.
400
Describe a compound machine and name at least two examples.
What is a machine composed of at least two simple machines.
400
List these categories of waves in order.
1. Waves that need a medium through which to travel (sound, ocean, seismic).
2. Waves that do not need a medium through which to travel. (radio waves, x-rays, light waves)
What is
1. mechanical
2. electromagnetic
400
1. Electromagnetic waves with frequencies higher than those that humans identify as higher than visible light.
2. Electromagnetic waves with frequencies lower than those humans identify as lower than visible light.
What is ultraviolet; what is infrared.
500
Another form of matter not discussed in our lessons.
What is plasma.
500
Balance the following equation:
SnO2 + H2 → Sn + H2O
What is
SnO2 + 2 H2 → Sn + 2 H2O
500
Name these three terms in order:
1. The point about which the lever is free to rotate.
2. The (weight) force you are trying to move.
3. The force you apply.
What is
Fulcrum
Load
Effort
500
Name at least two properties of light waves and two properties of sound waves.
light: electromagnetic, transverse, do not need a medium
sound: mechanical, longitudinal, need a medium to travel
500
Name at least five types of electromagnetic waves other than visible light.
What is
gamma rays
x-rays
ultraviolet
infrared
radio
microwaves