Show:
Physics Mystery Questions 1
Physics Mystery Questions 2
Physics Mystery Questions 3
K-3
3-6
100
Hydrogen and Helium
What are the two most common elements found on the sun?
100
Ultraviolet and infrared
What are two kinds of invisible light?
100
Water
What substance expands when it freezes?
100
Water pipes could burst as the metal contracts and the water expands.
What might happen if water is left in the pipes outside your house and the temperature outside drops below freezing?
100
Kelvin
What is the temperature scale where water freezes at 273.15 degrees?
200
A capacitor
What is the name of a gadget that stores electricity?
200
Power plants
What do we call facilities (manufacturers or companies) that generate electricity?
200
The hot water on the lid of the jar causes the metal to expand, enabling it to open the jar. Since metal expands more than glass, even if the glass expands, the metal lid will still be loosened.
What is when a jar won't open, why do you run hot water on the metal lid?
200
Static electricity
What is electrostatic energy sometimes called?
200
The universe is always becoming less and less ordered or organized.
What is the second law of thermodynamics?
300
Smooth and shiny
What are two kinds of surfaces that reflect light the best?
300
Oxygen, heat and fuel
What are three things needed for a fire to ignite?
300
The plastic container is elastic and will easily expand without cracking if the water freezes.
What is why your car's windshield washer container is made out of plastic?
300
Running hot water over the outer glass causes it to expand and loosen from the inner glass. You could also pour cold water inside the inner glass to cause it to shrink.
What is what you do if one glass is stuck inside another and how you use thermal expansion to separate them.
300
Two different nuclei of atoms fusing or joining together to become one nucleus.
What is nuclear fusion?
400
Through electromagnetic radiation
What is how radiant heat is transferred?
400
Volta
Who created the first battery?
400
A protective shield against the flow of electrons.
What is an insulator?
400
Fahrenheit
What is the temperature scale where water frezes at 32 degrees?
400
Cars get hot when they are running, so they must be cooled. Water is a good coolant, but because it expands when it freezes, it could harm the metal parts of the car. Antifreeze has a much lower freezing point. It is mixes with water to lower the freezing point of the water so it will not harm the car when it is cooling the engine.
What is why a car requires a substance called antifreeze in its radiator?
500
It refracts--speeds up/slows down and bends.
What is what happens to light when it enters a different medium?
500
The measurement of how active the molecules are in a substance.
What is temperature?
500
The entropy (or disorder) of something approaches its minimum as it's cooled toward absolute zero.
What is the third law of thermodynamics?
500
Celsius
What is the temperature scale where water freezes at 0 degrees.
500
An AC or alternating current.
What is what kind of current --alternating or direct--comes through your house from the power plant?