WorksheetsWork and Power Review
Total questions: 72
Worksheet time: 48mins
What is needed to calculate work?
force
distance
time
mass
Which of the following best defines WORK?
When a force makes an object move in the direction of the force.
It is the measurement of an objects mass times the gravity.
It is a push or a pull.
A force resisting the relative motion of solid surfaces sliding against each other.
Which of the following best defines POWER?
The speed of something in a given direction.
It is energy possessed by an object relative to its position.
It is a push or a pull.
It is how fast work is done.
Which of the following best defines APPLIED FORCE?
The speed of something in a given direction.
It is energy possessed by an object relative to its position.
It is a push or a pull.
It is how fast work is done.
What is the UNIT of measurement for WORK?
Newtons (N)
meters (m)
Watts (W)
Joules (J)
What is the UNIT of measurement for POWER?
Newtons (N)
meters (m)
Watts (W) or Joules/second (J/s)
Joules (J)
What is the UNIT of measurement for FORCE?
Newtons (N)
meters (m)
Watts (W)
Joules (J)
WORK transfers energy from one object to another.
True
False
What is the formula to solve for WORK?
W = P x t
W = P / t
W = t / P
W = P - t
What is the formula to solve for POWER?
P = W x t
P = W / t
P = t / W
P = W - t
What is the formula to solve for TIME?
t = W x P
t = W / P
t = P / W
t = W - P
What type of Work?
The applied force is in the OPPOSITE DIRECTION to the direction of motion or distance.
Negative Work
Positive Work
Zero Work
What type of Work?
Applied force WITHOUT MOTION or applied force PERPENDICULAR to the motion.
Negative Work
Positive Work
Zero Work
What type of Work?
The applied force is in the SAME DIRECTION as the direction of motion or distance.
Negative Work
Positive Work
Zero Work
Identify the type of work:
Carrying a stack of books while walking.
Force is UPWARDS and books are moving to the RIGHT.
Negative Work
Positive Work
Zero Work
Identify the type of work:
Lifting weights upwards.
Force is UPWARDS and weights are moving UPWARDS.
Negative Work
Positive Work
Zero Work
Identify the type of work:
Pulling a rope and sliding forward.
Force is BACKWARDS and body is moving FORWARDS.
Negative Work
Positive Work
Zero Work
Identify the type of work:
Opening a door.
Force is BACKWARDS and door is moving BACKWARDS.
Negative Work
Positive Work
Zero Work
Power and time are inversely proportional.
Increase power = _______ time
increase
decrease
Power and work are directly proportional.
Increase power = _______ work
increase
decrease
_______ is how fast the work is done.
Power
Work
Force
Joules
What is work (W) in the context of physics?
The amount of effort put into a task
The transfer of energy that occurs when a force makes an object move
The distance an object travels
The time taken to complete a task
What unit is used to measure work in physics?
Newton
Pascal
Joule
Watt
Which two conditions must be met for work to be done according to physics?
Object must move and force must be applied in the direction of the movement
Force must be applied and object must be heavy
Object must move and work must be done in a short time
Work must be done quickly and efficiently
What does the equation W = Fd represent in physics?
W = weight, F = friction, d = duration
W = work, F = force, d = distance
W = watt, F = frequency, d = diameter
W = wave, F = field, d = depth
What are the units for work, force, and distance respectively?
Newtons, Joules, Meters
Joules, Newtons, Kilometers
Joules, Newtons, Meters
Watts, Joules, Meters
What does the symbol 'P' represent in the context of the given material?
Pressure
Probability
Power
Pulse
What is the unit of power as mentioned in the learning material?
Newton
Joule
Watt
Pascal
According to the formula provided, power is calculated as work done divided by what?
Force
Distance
Time
Velocity
What is the unit of work as used in the formula for power?
Newton-meter
Joule
Watt
Kilogram
What is the unit of time used in the formula for calculating power?
Seconds
Minutes
Hours
Milliseconds
Which of the following is the best example of work being done.
doing homework
lifting a box
pushing a stationary box
holding a box
What would 54N be an example of?
work
power
distance
force
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
