WorksheetsWork
Total questions: 45
Worksheet time: 31mins
Work is done ___________
only when force is applied
on an object
cause the object to move
into the opposite direction
as applied force.
only when force is applied
on an object
cause the object to move
into the same direction
as applied force.
Formula of work:
W = F x t
W = F + t
W = F / d
W = F x d
There are two condition of work to be done....
Constant applied force on the object
Object travel a distance in the same direction of force
Both
The Unit of force is ______________
Kilogram (kg)
Newton(N)
The unit of distance is ___________
meter (m)
centimeter (cm)
millimeter (mm)
Units of work is ___________
Newton (N)
watt (w)
joule (J)
W-out will always be ______________
less than W-in
more than W-in
less than W-out
Using the formula for Work = Force X Distance
Calculate the amount of work required to move a 25 N a total of 3 meters.
8.3 joules
75 Newtons
75 joules
None of these are correct
Which is always the larger number (at least here on earth)?
Work output or Work input
Work output
Work input
Work causes a change in
Sweat
Energy
Calories
Force
what is defined as the product of the magnitudes of displacement and the
component of the force parallel to the displacement ?
work
energy
momentum
power
Work done upon a body is :
A vector quantity
A scalar quantity
Both A and B are correct
None of these
In tug of war work done by loosing team is :
Zero
Positive
Negative
None of these
work is done when
the object you apply a force on moves
any force is applied to an object, regardless if it moves or not
the force is zero
the force and direction of motion are perpendicular
what would 1m be an example of?
work
power
time
distance
what would 14J be an example of?
work
distance
time
force
What is an example of a force?
Energy
Power
Pressure
Weight
Which requires more WORK – a person WALKING up stairs OR a person RUNNING up stairs?
walking
running
they require equal work
no work is required for either because the movement is vertical
Which of the following is a true statement about work?
It measures how quickly an object accelerates
It measures how much force is applied over a certain distance
It measures the change in an object's rate of speed
It measures how much time it takes to move a massive object
When is work done on an object?
When an object has a net force applied to it.
When an object moves while a net force is being applied to it
When an object doesn't move while a net force is applied to it
When an object is moving without a net force being applied to it
You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?
Yes, work was done
No, work wasn't done
