How are elements organized on the Periodic Table?
Anonymous Quiz
4%
By their alphabetical name
96%
By their increasing atomic number (number of protons)
0%
By when they were discovered
0%
By their physical state at room temperature
What is the electrical charge of an electron?
Anonymous Quiz
5%
Positive (+1)
7%
Neutral
83%
Negative (-1)
5%
Variable
β€1
Which of the following is an example of an element?
Anonymous Quiz
0%
Table salt
78%
Pure gold
17%
Carbon dioxide
5%
Water
Which subatomic particles are located inside the nucleus of an atom?
Anonymous Quiz
90%
Protons and neutrons
7%
Protons and electrons
0%
Electrons and neutrons
3%
Only electrons
Enjoy π your morning quiz π€².. Good morning β€οΈ
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Real π
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The Golgi apparatus is a cell organelle that modifies, sorts, and packages proteins and lipids. It acts like the cellβs post office, preparing materials for transport inside or outside the cell.
@edsciencelab ππ¨βπ¬
@edsciencelab ππ¨βπ¬
It takes 2 neurons to ride a bike
In this weekβs paper, Matthew Cook asks how a computer can control a bicycle without solving the full nonlinear equations of motion, or spending an inordinate amount of time learning through reinforcement learning. Humans seem to learn in a different way: not by deriving equations, and not by crashing thousands of times.
Cook presents a two-neuron network that can ride a simulated bicycle in a desired direction.
Good morning
@edsciencelab ππ¨βπ¬
In this weekβs paper, Matthew Cook asks how a computer can control a bicycle without solving the full nonlinear equations of motion, or spending an inordinate amount of time learning through reinforcement learning. Humans seem to learn in a different way: not by deriving equations, and not by crashing thousands of times.
Cook presents a two-neuron network that can ride a simulated bicycle in a desired direction.
Good morning
@edsciencelab ππ¨βπ¬
Which of the following travels the fastest?
Anonymous Quiz
4%
Seismic waves
83%
Light waves
2%
Water waves
11%
Sound waves
If a material absorbs 100% of all incident visible light, what color is it?
Anonymous Quiz
23%
White
65%
Black
0%
Clear
13%
Mirror-like
How long does it take for light from the Sun to reach Earth?
Anonymous Quiz
25%
Instantly
23%
About 8 seconds
40%
About 8 minutes
13%
About 8 hours
Which type of mirror curves inward like the inside of a spoon?
Anonymous Quiz
19%
Convex mirror
81%
Concave mirror
0%
Plane mirror
0%
Flat mirror
Light behaves as both a wave and a stream of tiny particles. What are these particles called?
Anonymous Quiz
2%
Lepton
93%
Photons
2%
Protons
2%
Electrons
β€2
Why does a banana appear yellow to our eyes?
Anonymous Quiz
12%
It absorbs yellow light and reflects all other colors.
72%
It reflects yellow light and absorbs all other colors.
2%
It creates its own yellow light energy.
14%
It refracts white light into yellow light.
What do we call a piece of glass that separates white light into a rainbow of colors?
Anonymous Quiz
3%
Lens
0%
Mirror
5%
Filter
93%
Prism
What type of object allows all light to pass through it clearly?
Anonymous Quiz
90%
Transparent
3%
Translucent
3%
Opaque
5%
Reflective