PT not TP
This element has an atomic number of 1.
What is hydrogen?
What is the crest?
Energy of motion
What is kinetic energy?
What is weight?
All objects fall towards Earth's surface at this rate.
What is 9.8 m/s2?
Since Aluminium is element number 13 and has an atomic mass of 27 it must have this number of neutrons.
What is 14?
The distance between two corresponding waves.
What is wavelength?
Energy is measured in this unit.
What is joules (J)?
This law states that an object at rest/motion will stay at rest/motion unless a force acts on it.
What is Newton's 1st law?
Bike tires on the road as you ride are an example of this type of friction.
What is rolling friction?
This group of elements are "inert" meaning they do not form compounds easily.
What are the noble gases?
The only part of the electromagnetic spectrum that we can see.
What is visible light?
When thermal energy is added to something, this happens to the kinetic energy of the particles inside of it.
What is KE increases or speeds up?
A rocket launching off the ground is an example of this law.
What is Newton's 3rd law?
Matter is not created nor destroyed in a chemical reaction.
What is the principle of conservation of mass?
Balance this equation-
H2 + O2 --> H2O
What is 2H2 + O2 --> 2H2O?
These two alternating parts make up a longitudinal wave.
What are compression and rarefaction?
On a distance-time graph, the flat line parallel to the x-axis represents this motion.
The volume of an irregular shaped object can by measured by this technique.
What is water displacement?
The only sure evidence or clue for a chemical reaction.
What is a new substance forming?
This group of non-metals is the most reactive.
What are the halogens (group 17 or 7A)?
The speed of a wave is its wavelength multiplied by this part of the wave.
What is frequency?
The change inwhich ice absorbs energy and melts.
What is an endothermic change?
In this state(s) of matter, the particles can move past each other and flow.
What are liquids and gases?
What is a double replacement reaction?