Atoms
Types of Energy
Particles
other- little bit of everything a little less hard
Other- little bit of everything hard
100
What type of charge does a proton have
positive
100
What are the two main types of energy
kinetic and potential
100
Given a solid and a gas...in which are particles farther apart and in which are they closer together?
solid- closer
gas- farther
100
How many valence electrons does calcium have
2
100
What is an example of radiant energy?
the sun
200
What type of charge does an electron have
negative
200
A globe sitting high on a shelf has what type of energy?
(gravitational) potential
200
What happens to particles when thermal energy (heat) is added?
they move around faster
200
How many neutrons are in the sulfur cell? (use 32 as the atomic mass)
32 - 16 = 16
200
If the atomic mass is 25 and the atomic number is 12 what is the number of neutrons
25 - 12 = 13
300
What type of charge does a proton have
no/neutral
300
When you rub your hands together what kindS of energy is being used? (list at least 2)
sound, thermal, mechanical, kinetic
300
Why is thermal energy considered kinetic energy
particles are vibrating and moving
300
A wind up toy was wound up but not yet released...what kind of energy is that
mechanical potential
300
What does the law of conservation of energy say
energy can never be created or destroyed...it just changes forms
400
where can you find valence electrons
outermost shell of an atom
400
pulling back on a rubber band or bow and arrow have what type of energy
elastic (potential)
400
how does energy travel through air to reach an object
particles vibrate back and forth and bump into other particles
400
Where is an atoms mass located
nucleus
400
What subatomic particle (parts of an atom) determines the identity of an element?
protons
500
What information does the atomic number tell you
number of protons and electrons
500
an unused glow stick, a battery disconnected, and a slice of pizza all have what kind of energy
stored chemical potential
500
What happens to a glow stick when you put it in hot water vs cold water and WHY
it glows more in hot water, because to particles are moving around faster and in cold water they slow down
500
When you turn on a light switch electrical energy turns into what two other forms
light and thermal
500
What determines how many valence electrons an atom has
where it's located on the periodic table