Unit 1
Velocity is..
the displacement of an object in unit time.
A balanced force is...
a force that is cancelled out by another force.
If N side of a magnet is put on N side of another magnet, the forces will
repel
The first man on the moon was
Neil Armstrong
How many days does it take for the moon to revolve around the earth
27 days
The person who came up with the four elements, earth water, fire, and air is...
Aristole
Friction is a
force that opposes motion
If N side of a magnet is put next to a S side of a magnet the two will
attract
What was the misson name to put a man on the moon
Apollo 11
If the North pole is tilted towards the sun, it is BLANK in the Northern Hemisphere
Summer
IN what axis is time on?
X axis
The formula for Newtons second law is
Force= mass x acceleration
Is light a wave? T or F
True
What kind of planet is earth?
Rocky planet
The moon causes
tides
Acceleration is...
change in velocity over time.
Newtons second law states
Objects with a greater mass have a greater resistance to being put in motion.
An objects mass and speed is related to
kinetic energy
What is the name of the type of planets made up of helium and hydrogen?
Gas Giants
The equator experinces all four seasons. T or F
False
The formula for velocity is...
v=x/t
If a surface has no friction and something with no mass is slid on it, it will
go on forever till stopped by another object
sound energy is
disturbance of air, gas, or liquid.
Pluto is no longer a plant in the solar system because
it is to small to be one, now classified as a dwarf planet.
How many degrees is Earths tilt
23.4