Freedom of Movement!
KE vs. MA
Energy transfer
Previous Units
Not science
100
This describes the freedom of movement of a solid substance.
What is "molecules move in place"?
100
As a gas, oxygen has a weak molecular attraction.
This is Oxygen's molecular attraction when it condenses into a liquid.
(weaker, stronger, or the same)
What is the same molecular attraction?
100
When energy is transferred into a hot room, this is what happens to the oxygen molecules in that room.
What is "the molecules in the room move faster"?
100
This describes what the Earth's out layer is made of.
What is "hard solid rock"?
100
This is the number of units we have had by the time we finish the test tomorrow.
What is "four"?
200
Which object has molecules that are moving?
The cup, the ocean, or both?
What is both?
200
True or false — when energy is transferred into a substance, it will always cause a phase change.
What is False?
200
Energy is transferred out of liquid water. This is what WILL happen to the molecules of that water.
What is "the molecules will slow down"?
200
This is the name of a rock formed by heat and pressure.
What is a metamorphic rock?
200
This is the number of 7th graders who got A's in science for the 3rd quarter.
What is "5"?
300
This describes what happens when when a substance's freedom of movement increases or decreases.
What is a phase change?
300
Two substances (1 & 2) are liquids at room temperature. As a test, the same amount of energy is transferred out of the two containers and find that only substance 1 changes phase. Which is the substance with a weaker molecular attraction?
What is substance 2?
300
The same amount of energy is transferred into two liquid substances that were already at room temperature. Substance 1 changes phases and substance 2 does not. Which substance's molecules are moving faster?
What is "both substance's molecules have the same kinetic energy"?
300
This describes what is happening below.
What is, a divergent plate boundary, where two plates move apart?
300
This is the name of a triangle that has only two equal sides.
What is isosceles?
400
When energy is transferred out of a liquid substance and it changes phases, this is how the molecules of that substance move afterwards.
What is "the molecules move in place"?
400
Two liquid substances had energy transferred into them. Substance 1 had a weaker molecular attraction and substance 2 had a stronger molecular attraction. Only one of the substances changed phases. Which substance changed phases? and what way do that substances molecules move now?
What is substance 1? What is "the molecules now move apart from one another"?
400
Why might a cloud (water vapor) start raining if energy is transferred out of the cloud?
What is "when energy is transferred out of a gas it can condense and turn into a liquid"?
400
Describe the process by which magma becomes a sedimentary rock.
What is: "magma rises/cools to become an igneous rock, the igneous rock weathers and breaks down into sediment, the sediment compacts and cements to form a sedimentary rock"?
400
This is the room number we are currently in.
What is room 201?
500
Two substances are both at the same temperature have different freedoms of movement. Substance 1 has molecules which move around each other. Substance 2 has molecules which move in place. Which substance's molecules have a greater amount of kinetic energy?
What is "both substance's molecules have the same amount of kinetic energy"?
500
Draw a graphical representation of kinetic energy and molecular attraction that demonstrates why water is a liquid at room temperature while oxygen is a gas, even though both are the same temperature.
500
More energy is transferred into tank 3 than normal. Why might this cause a problem in the liquid oxygen machine?
What is "liquid oxygen could phase change into oxygen gas"?
500
This is the kind of rock found in the channel on Mars that proves there was once water on the planet.
What is "a conglomerate rock"?
500
Mr. Harman has a tattoo of this kind of insect on his arm and a sticker of this insect on his water bottle.
What is "a praying mantis"?