1st qrt grade 8 science reviewer Flashcards
a push or pull that changes an objects state of rest or motion
Force
two forces with the same amount of power are applied in opposite directions
Balanced force
when one of the two forces applied in opposite direction is greater than the other
Unbalanced force
forces that act between two objects that are physically touching each other
Contact force
forces that contact between two objects without them physically touching each other
Non-contact force
a force that happens when two surfaces rub againts each other
Friction
a force when something happens when something tries to slowdown or stop another thing from moving
Resistance
force that happens when an object is pulled from opposite directions by two forces
Tension force
a force when one object pushes or pulls on an object
Applied force
force that pulls an object towards eachother
Gravity
a type of non contact force that acts between magnets or megnetic objects
Magnetic force
force between two objects that have an electric charge
Electrostatic force
The four types of friction are?
static, rolling, fluid, and sliding
a friction that happens when an object is not moving and is touching a surface.
Static friction
a friction that happens when two objets slide past each other
Sliding friction
a type of friction that occurs when a round object like a ball or a wheel, rolls over a surface.
Rolling friction
a type of friction that happens when an object moves through a fluid like air or water.
Fluid friction
the four types or kinds or aspects of gravity are?
attracting, universal, grounding,and non contact
it is a rule of gravity that explains how gravity works in the entire universe
Gravity is universal/ universal
gravity is (Blank) it is a force that exists between objects, even if they are not touching each other
gravity is non-contact / non-contact
what type of gravity that states gravity is a force that keeps everything anchored to Earth, pulling objects downwards
Gravity is grounding / grounding
what impact can forces have on objects (give atleast 3 of them)
It can make it move, stop it, make it speed up, cause it to change directions, make it slowdown, and cause it to change shape.
who is Isaac Newton
He is a renowned physicist and mathematician from england who discovered in 1687 the correlation between force and motion.
He is a renowned physicist and mathematician from england who discovered in 1687 the correlation between force and motion.
Isaac Newton
