Newtons laws
States that if an object will be acted upon by a net force, and the acceleration of the object will be in the direction if the new force, and the acceleration equals the net force divided by the mass.
What is Newton's second law of motion?
laws explain motions as simple as walking and as complicated as a rocket launch.
What are Newton's laws?
s=d/t
What is the average speed equation?
What are the pulley, lever, wheel and axel, inclined plane, wedge, and screw?
something that makes life easier.
What are simple machines?
Acceleration (in m/s2) = net force (in N)/mass (in kg)
How to calculate net force
a push or pull. In SI units, force is measured in newton's (N)
What is a force?
The speed of an object at any instant of time.
What is instantaneous speed?
•A sloped surface, sometimes called a ramp.
What is an inclined plane?
is done when a force causes an object to move in the same direction as the force that is applied.
What is work?
State when one object exerts a force on a second object, the second object exerts an equal force in the opposite direction on the first object
What is Newton's third law of motion?
An object will not change its motion unless an unbalanced force acts upon it.
What is Newton's first law of motion?
an object is the speed of the object and its direction of motion.
What is velocity?
•A rod or plank that pivots about a fixed point.
What is a lever?
A machine that uses only one movement
What is a simple Machine?
Daily Double: you grow a quarter of an inch
What happens to your body at night?
A force between two surfaces in contact that resists the motion of the surfaces past each other.
What is friction?
is the change in velocity divided by the time needed for change to occur
What is acceleration?
•An object, like a wheel, that has a groove with a rope or cable running through it.
What is a pulley?
•Work (in J) =force (in N) x distance (in m) W= Fd
What is the work equation?
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The tendency to resist change of motion.
What is inertia?
DAILY DOUBLE: What is flammable because it contains so much palm oil?
What is nondairy creamer?
•MA= Fo/Fi
What is the mechanical advantage formula?
•A combination of simple machines.
What is a combination machine?