Chemical reaction
What items use chemical battery usage
Laptop,Phone,Clocks,Cars
Can sound waves generate heat?
Yes, sound can generate heat
As light from a star spreads out and weakens, do gaps form between the photons?
The light from a distance star indeed spreads out and weakens as it travels, but this just reduces the wave strength and does not introduce gaps.
What is a poor diet?
Diets high in sugars, saturated and trans- fats, low fibre foods and high-sugar drinks
How many alkali metals are there in the Periodic Table?
Six
What is the difference between a chemical process and a physical process in chemistry?
Physical the form changes but chemical it does not.
Can wind travel faster than the speed of sound?
1.5 times faster than the speed of sound.
Can air make shadows?
it cannot form a shadow on its own.
What is a good nutrient?
Vitamin C
What are the lightest of the metallic elements in the Periodic Table
Magnesium
How is matter in the universe organised?
in a wispy network consisting of huge clusters of galaxies, linked to one another by dense filaments of gas and invisible dark matter and interspersed with gigantic cosmic voids
Does sound travel faster in space?
Sound does not travel at all in space
Can humans ever directly see a photon?
humans can indeed see photons, even individual isolated photons
What foods have a lot of carbs(Name 2)
Fruits,Oats
What is the heaviest element's chemical symbol?
Ur(Uranium)
When does the breaking of chemical bonds release energy?
when new bonds form in products
How does sound going slower in water make it hard to talk to someone underwater?
Sound waves have a hard time going from air into water and mostly get reflected at the air-water interface instead of being transmitted into the water
Can light bend around corners?
Light can bend around edges
what foods have fat in them(Name 3)
Au is the symbol for for what chemical element?
Gold
Why is mass conserved in chemical reactions?
because the new substances created are composed of atoms that were present in the reactants.
What psychological effect makes notes on a piano that are an octave apart sound the same?
physical rather than psychological.
Can momentum be hidden to human eyes like how kinetic energy can be hidden as heat?
Because momentum is directional, it cannot be hidden from the human eye in the form of random atomic motion
What is a very healthy food?
Dark green vegetables
What is the rarest group 1 element
francium