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Q 1/79
Score 0
What ALL waves carry in a repeating pattern!
30
ENERGY
Q 2/79
Score 0
Situation: Your teacher's voice hits the classroom wall and bounces (echos) back
30
Example of SOUND waves being REFLECTED
79 questions
Q.
What ALL waves carry in a repeating pattern!
1
30 sec
Q.
Situation: Your teacher's voice hits the classroom wall and bounces (echos) back
2
30 sec
Q.
Situation: White light hits a mirror and bounces back
3
30 sec
Q.
Situation: Energy moving through a lake hits the side of a boat and bounces off
4
30 sec
Q.
Situation: During a concert, the band's music is taken into the curtains surrounding the stage
5
30 sec
Q.
Situation: A black t-shirt takes in all the colors of light
6
30 sec
Q.
Situation: Under water, energy is taken in by seaweed
7
30 sec
Q.
Situation: In the hallway, you can hear a classmate's laugh pass through the closed classroom door
8
30 sec
Q.
Situation: Sunlight is able to stream/pass through a transparent window
9
30 sec
Q.
Situation: Energy is passed through a large tsunami wave when an earthquake hits in the ocean
10
30 sec
Q.
The place/action where the energy/vibration (sound, light, etc.) BEGINS
11
30 sec
Q.
The point where the energy (sound waves, light waves, etc) is "sensed" by seeing, hearing, feeling, etc.
12
30 sec
Q.
The matter/material that the wave energy travels through
13
30 sec
Q.
The distance from a crest to the next crest or a trough to the next trough. One repetition/cycle of the wave.
14
30 sec
Q.
The TIME it takes one wavelength to complete, or how OFTEN a wave happens
15
30 sec
Q.
The height from a wave's resting point (middle) to the top (a crest) or the bottom (a trough), measures the ENERGY in the wave
16
30 sec
Q.
More energy = higher amplitude; less energy = lower amplitude
17
30 sec
Q.
When AMPLITUDE of a sound wave is increased, we hear it as...
18
30 sec
Q.
The small part (less than 1%) of the electromagnetic spectrum that human eyes can detect
19
30 sec
Q.
the percentage of the light (electromagnetic) spectrum that human eyes can sense ("see")
20
30 sec
Q.
The ENTIRE range of visible and invisible LIGHT
21
30 sec
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How SOUND energy is passed from source to destination
22
30 sec
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A wave with a continuously varying wavelength/frequency
23
30 sec
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A wave is sampled into chunks and assigned values (digits)
24
30 sec
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Sound waves, water waves, earthquake waves are all examples
25
30 sec
Q.
When sound energy hits a surface and REFLECTS back to be sensed again
26
30 sec
Q.
made of atoms; has mass AND volume
27
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Made of a single type of atom; PURE
28
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Made of two or more types of atoms chemically linked; PURE
29
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Q.
Made of many different types of atoms/molecules NOT chemically linked; NOT PURE
30
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Cannot be separated under normal lab conditions
31
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chemically separated with energy (mix with acid, burn, extreme heat, etc)
32
30 sec
Q.
physically separated (filter out, pick out pieces, evaporate)
33
30 sec
Q.
These atoms could be of:
34
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Q.
These atoms could be of:
35
30 sec
Q.
These atoms could be of:
36
30 sec
Q.
Atoms (elements) combine to form molecules (compounds). These combine to form mixtures. All together, they make up all matter in the universe.
37
30 sec
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Two or more atoms chemically bonded together. (can be the SAME type of atoms, OR different atoms)
38
30 sec
Q.
See image
39
30 sec
Q.
See image
40
30 sec
Q.
Large number in front of a chemical symbol/formula that tells how many molecules of that substance there is
41
30 sec
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Small number to the right of a chemical symbol that tells how many atoms of that element there are
42
30 sec
Q.
how much STUFF (matter) is in an object.
43
30 sec
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how much SPACE an object takes up.
44
30 sec
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what is mixed/combined in a chemical reaction; everything to the left of the arrow
45
30 sec
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what is produced in a chemical reaction, everything to the right of the arrow
46
30 sec
Q.
existing in or caused by nature; not made or caused by humankind
47
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materials that don't occur in nature, but are made from natural resources that undergo a chemical change.
48
30 sec
Q.
Changes only the physical properties of matter; the final product is still the same matter. The chemical composition (molecules) of the substance are NOT affected.
49
30 sec
Q.
Phase changes, cutting paper, mowing grass
50
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The molecules of a substance are broken down and rearranged causing a change in chemical properties and, occasionally, a change in energy
51
30 sec
Q.
Rusting/tarnishing; bubbles forming when alka seltzer and water are mixed; burning paper
52
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Q.
Heat, bubbles, odor, color change, sound, light, energy change, new molecules form
53
30 sec
Q.
Scientific law that states: matter cannot be created or destroyed in chemical reactions.
54
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Q.
To distinguish between a physical change and chemical change, an observer must make careful observations of the properties of the matter before and after the change.
55
30 sec
Q.
Physical change because the molecules are not rearranging into something new - just spreading apart or coming together
56
30 sec
Q.
example of a physical change since the ice is melting (molecules of water are simply spreading apart)
57
30 sec
Q.
example of a physical change since the mix/powder is just spreading out and mixing into the water
58
30 sec
Q.
example of a chemical change since the tarnish is a change in molecules as the metals react with oxygen
59
30 sec
Q.
example of a physical change since the gelatin is simply changing from a liquid to a solid (phase change)
60
30 sec
Q.
example of a chemical change since the chlorophyll in the leaves is going through a chemical change
61
30 sec
Q.
equal
62
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A reaction that ABSORBS energy in the form of heat
63
30 sec
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a chemical reaction in which heat is released to the surroundings
64
30 sec
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temperature of the system will decrease over the course of the reaction
65
30 sec
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temperature of the system will increase over the course of the reaction
66
30 sec
Q.
energy cannot be created or destroyed, only transferred from one form/object to another
67
30 sec
Q.
energy of moving objects
68
30 sec
Q.
stored energy of object due to their POSITION
69
30 sec
Q.
the rate at which an object moves in a certain direction (speed AND direction)
70
30 sec
Q.
a push or pull that can change an object's velocity (the speed or directions of its motion)
71
30 sec
Q.
a force that opposes the motion of any objects that touch
72
30 sec
Q.
the opposing force that results from the contact between AIR and objects moving through it
73
30 sec
Q.
relationship between mass and KE during a roller coaster
74
30 sec
Q.
relationship between velocity and kinetic energy
75
30 sec
Q.
stored energy due to a position off of the Earth's surface (height)
76
30 sec
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relationship between mass and potential energy
77
30 sec
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moving energy can be passed on to another object, but is never destroyed; KE is transferred
78
30 sec
Q.
Relationship between potential and kinetic energy as a pendulum is lifted to a height and then swings down