Grab Bag
Objects that have charge
Electric field
Physics studies _____ and the nature of matter and energy
Motion
____ is a ___ that restricts motion
Friction--- force
what metals are ferromagnetic?
Iron, nickel, and cobalt
_____ is the fastest _______ people know of
light; phenomenon
Chemistry is a___ of ____
study; matter
What is Thales known as?
Father of science
What is force and when does it happen?
A force is a push or a pull, force happens when two objects touch each other
object with mass
gravitational field
matter is made up of _____ and _____
atoms; molecules
how old is the universe?
13 billion years old
What are ancient philosophers, Socrates, Plato, and Aristotle known for?
Socrates- developed a method of asking questions, Plato- studied nature of knowledge, Aristotle- developed many scientific theories
what's newtons first law of motion
a object at rest remains at rest, and an object in motion remains in motion at a constant velocity, unless acted upon by an unbalanced force
what is kinetic energy
a form of energy that is directly proportional to an object’s mass and speed
Who created the idea of a atom?
Leucippus and Democritus
how long is a light-year
9.5 trillion kilometers
What is speeds ratio?
speed= distance/time
v=d/t
whats Newtons second law of motion?
Objects with a greater mass have a greater resistance to being put in motion
what are the types of waves?
1) Direction of disturbance 2) the nature of the wave itself
True or false, Once a combined atom stays a combined atom
TRUE
why do tides happen?
because of the gravitational force applied by the Sun and by the Moon on the Earth
what does velocity mean?
speed with a specific direction
what is Newtons third law of motion
A force of pressure that comes back when applied
how does light travel?
in a straight line
earths axis is ____ at a angle
tilted