science test
What is the planet with the most gravity??
jupiter
a solute is the
solid in a solution
a solvent is
the liquid in a solution
solubility is when
a solute mixes in a solvent
a saturated solution is when
a solution with a solute that cant dissolve in the solvent anymore
what is a concentrated solution?
its when theres alot of a solute in the solution
what is a dilute solution?
its when theres little of the solute in a solution
what is an insoluble?
its when the solute doesnt dissolve in a solvent
what is a soluble?
its when a solute dissolves in a solvent
what unit of measure is weight weighed in
newtons
what unit of measure is mass
kilos
mass is
the matter in an object
if your on a planet with less gravity than earth your weight
decreases and you become lighter
what keeps the planets in orbit around the sun
gravitational forces
tides are caused by the gravitational pull of the
moon and sun
the ability of a substance to dissolve in whater is called its
solubility
a solution is a mixture of a
solvent and soluble
the temperature of most solubilities ______ as the temperature increases
increases
______ is the force of gravity acting on an objects mass
gravity
mass is measured in______ and weight in ______
mass in kilos weight in newtons
the gravitational force on the moon is ____ than on earth
weaker
the ___ is at the center of the solar system
sun
how can you identify a saturated solution
when no more solute dissolves in the solvent
what energy transformations take place in a flashlight when it is turned on
chemical or electrical to light to thermal
Describe what happens to the energy in a roller coaster as it moves from the top of a hill to the bottom.
Potential energy → Kinetic energy
What happens to tides when the Moon and Sun are aligned?
The gravitational pull is stronger, causing higher high tides and lower low tides (spring tides).
What would happen to the tides if the Moon were farther away from Earth?
Tides would become weaker and less extreme.
Solutions are always formed by combining two solids. (true or false)
false
A solvent is the substance in which the solute dissolves. (true or false)
true
The solubility of gases decreases with an increase in temperature.(true or false)
true
Mass changes depending on where an object is located in the universe.(true or false)
false
Weight is the gravitational force acting on an object.(true or false)
true
Gravity is weaker on the Moon than on Earth.(true or false)
true
Protein is needed to create new cells. (true or false)
true
It’s harder to move in space because there is a lot of air resistance.(true or false)
false