WorksheetsSemester 1 Review
Total questions: 10
Worksheet time: 5mins
A force
is a push or a pull
must be acting when an object is moving
is a form of energy
is always balanced
Choose correct answers:
The shape of the position versus time graph from 0 to 0.1 s is best described as
horizontal trendline
linear
directly proportional
curved
From time 0 to 0.1 s the object
Is in dynamic equilibrium
Is in static equilibrium
Is not in equilibrium
This graph is from the Free Fall challenge. From time 0 to 0.1 s
there is no force acting on the object
the downward force of gravity is balanced by an upward contact force
there is a net force downward due to gravity
the downward force of gravity is balanced by the upward air resistance
From time 0.1 to 0.2 s the object
Is in dynamic equilibrium
Is in static equilibrium
Is not in equilibrium
In order to determine the velocity at one time,
you must measure 2 data points and use (y1- y2) / (x1-x2)
You can use a kinematic equation in all cases
you can find the slope of a tangent to the position vs time graph
All of these choices are valid
9.81 N/kg is
a mass
a weight
the force of gravity
the gravitational constant on earth
In the statement Fg = m x 9.81
weight is the same thing as mass
weight is the same things as the force of gravity
weight is the same thing as the gravitational constant
weight has nothing to do with this statement
In the statement Fg = m x 9.81
Weight is determined by torque
Weight is determined by mass and acceleration due to gravity
9.81 can have units of kg/N
m stands for meters
A torque is
a force that is applied over a distance
the same thing as weight
a force that causes circular motion (rotation)
inversely proportional to r
