force test
A 500 N force is applied to a 5m/s object
20 kg
Calcuate the force on an object that has an mass of 10 kg and an acceleration of 4m/s
40 N
A man weighing 800 N is standing in a chair, in order to support the man, what force is exerting.
800 N up
which is a force
Friction
the realtionship among mass, force, and accleration is explained by
Newton's 2nd law of motion
to every action there is an equal and opposite'' reaction describe which law?
Newton's 3rd law of motion
A student drops a feather and a rock at the same time form Mrs.Artrip's window. if air resistance wasn't a factor, what should be observe,
The rock falls faster than the feather
Which is the following best describes how a swimmer moves through the water?
The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on swimmer
According to newton's laws for any object, the greater the force that applied to it, the greater it's what will be
acceleration
the upward forces on an object falling through the air
air resistance
a group of students is playing tug-of war. the students on both sides of the rope pulling with equal force so that the rope is not moving. this an example of
balanced forces
when two forces on the same object, are equal and opposite, these forces are called
balanced forces
as the mass of an object increases, it''s intertia will
increase
How does gravitational force change as two objects mover farther apart?
it decreases?
the blank of an object does not change, but it's what can be on its location
mass, weight,
the size of the gravitational force between two objects depends on their
masses and distance between them
an object accelerates in the same direction as which of the following
net force
a firefighter feels the hose psuhing backwards onto him as he used it to put out a fire. what is mostly likely cause of this?
the escaping water exerts an equal and opposite force on the hose
Which explains why astronauts seem weigthless in orbit?
the spacecraft in free fall
which two quantities are measured in the same units?
weight and force
