A
a device that measures air pressure
barometer
a region of space that is completely empty of everything
vacuum
a flat surface that is tilted to form a ramp
inclined plane
the force per unit area with which air pushes on a surface
air pressure
measure of how much matter is packed into a certain volume
density
a force that resists the motion of one object against another
friction
device invented by Galileo to measure temperature
thermoscope
an object that is given an initial velocity but then travels through the air without anything powering its motion
projectile
the change in an object's velocity
acceleration
the time it takes for something to happen
period
the type of curved path that a projectile follows
parabolic
device to measure temperature; based on a liquid expanding and contracting as the temperature changes
Galileo thermometer
When pressure is exerted at one place in an enclosed liquid, the liquid transmits that pressure in all directions, pushing with that pressure against anything it touches
Pascal's Law
the distance and direction something is moved from its original position
displacement
a weight hung from a fixed point so it can swing back and forth
pendulum