WorksheetsEnergy Bar Charts Practice
Total questions: 52
Worksheet time: 39mins
When no friction or external applied forces are present, the total mechanical energy of a system will
Increase
Decrease
Remain Constant
When positive work by an external force is done on a system, the energy of the system will ________.
Increase
Decrease
Remain the same
When negative work (by friction or external forces) is done on a system, the total mechanical energy will ______.
Increase
Decrease
Remain the same
What situation describes the initial (i) and final (f) state shown by the energy bar graph.
A phone falls from a table (i) to the floor (f)
A ball is thrown straight up (i) into the air (f)
A car driving on a flat road (i) accelerates (f)
What situation describes the initial (i) and final (f) state shown by the energy bar graph.
A student at the top of a hill (i) bikes down the hill (f)
A student biking towards a hill (i) pedals up a hill at constant speed (f)
A student biking on a horizontal road (i) pedals to accelerate (f)
A student biking on a horizontal road (i) loses velocity due to friction (f)
What situation describes the initial (i) and final (f) state shown by the energy bar graph.
A student running to a downhill slip-n-slide (i) slows down as they approach the bottom(f)
A student running to a downhill slip-n-slide (i) speed up as they approach the bottom (f)
A student at rest (i) is dragged by their friend down a slip-n-slide
A student running to a horizontal slip-n-slide (i) has fun slidding to a stop (f)
Which description of motion matches this bar chart?
The driver of a car slows down on a level roadway
A golf ball rolls up a hill and comes to a stop
A skydive falls at constant speed
A girl on a sled starts at rest on a hill then slides down
Which description of motion matches the bar chart?
A car moves along a level roadway at constant speed
A baseball player slides into second base coming to a stop
A ski lift lifts a rider at constant speed from the bottom to the top of a mountain
Starting from rest a marble rolls down a ramp
Which description of motion matches the bar chart?
A baseball player slides into second base and comes to a stop
From the top of a hill, a skier uses her poles to help her ski down the hill with no friction
A car is accelerating from rest on a level road
A golf ball is rolling up a hill with some resistance from the grass
Which description of motion matches the bar chart?
A driver hits the breaks to slow down to the speed limit
A car is moving along a level roadway at constant speed
A skydiver fall to the ground at constant speed
A baseball player slides into second base and comes to a stop
An energy bar chart is posted above. Which of the following scenarios could represent the cart?
A car driving up at hill at constant velocity
A skydiver falling to the ground at constant velocity after opening their parachute
A ball rolling down a ramp
A car applying their brakes on a level surface and coming to a stop
A person holds a yo-yo above the ground before letting go. What type of energy is present before the person lets go?
Gravitational Potential Energy
Elastic Potential Energy
Kinetic Energy
Thermal Energy
A box slides at a constant velocity across a frictionless floor. What type of energy is present?
Gravitational Potential Energy
Elastic Potential Energy
Kinetic Energy
Thermal Energy
An object is traveling at a set speed. How will the Kinetic Energy change if that speed is doubled?
It will double
It will quadruple
It will change by a factor of 1/2
It will change by a factor of 1/4
A man pushes a boulder and the boulder does not move. Which statement correctly describes the scenario
work is being done by a single object
All work done is external to the system
by pushing on the rock, the man causes a transfer of energy
no work is being done on the object
A man carries a box across a room at constant velocity. Is work being done on the box by the man?
Yes
No
Half of the time
Not enough information
A man lifts a box into the air. Is work being done by gravity when the box is lifted into the air?
Yes
No
Half of the time
Not enough information
A box slides to a stop across a floor. Describe how the Mechanical Energy changes for the box-Earth system.
It increases
It decreases
It remains constant
The box explodes
A man lifts a weight above his head at constant velocity. Describe the mechanical energy of the weight-earth system.
Mechanical Energy Increases
Mechanical Energy Decreases
Mechanical Energy stays the same
Mechanical Energy is a figment of the imagination
Based on the graph above would Mechanical Energy be conserved?
Yes, Mechanical Energy is always conserved
No, there is external work acting on the system
No, Mechanical Energy increases
Yes, the left side is equal to the right side
A box slides to a stop. Is the work done by the force of force of friction on the box-Earth system internal or external?
Internal
External
What is the GPE at position 1?
Round to one decimal.
(a)
What is the height at position 1?
Round to one decimal.
(a)
What is the velocity at position 1?
Round to one decimal.
(a)
What is the velocity at position 2?
Round to one decimal.
(a)
What is the height at position 2?
Round to one decimal.
(a)
What is the KE at position 2?
Round to one decimal.
(a)
What is the TME at position 2?
Round to one decimal.
(a)
What is the TME at position 2?
Round to one decimal.
(a)
What is the KE at position 2?
Round to one decimal.
(a)
What is the GPE at position 1?
Round to one decimal.
(a)
What is the TME at position 1?
Round to one decimal.
(a)
What is the KE at position 1?
Round to one decimal.
(a)
What is the GPE at position 2?
Round to one decimal.
(a)
What is the velocity at position 2?
Round to one decimal.
(a)
What is the KE at position 1?
Round to one decimal.
(a)
What is the TME at position 1?
Round to one decimal.
(a)
What is the mass at position 1?
Round to one decimal.
(a)
What is the mass at position 2?
Round to one decimal.
(a)
What is the velocity at position 2?
Round to one decimal.
(a)
What is the TME at position 2?
Round to one decimal.
(a)
What is the GPE at position 2?
Round to one decimal.
(a)
What is the KE at position 2?
Round to one decimal.
(a)
What is the KE at position 1?
Round to one decimal.
(a)
What is the GPE at position 1?
Round to one decimal.
(a)
What is the velocity at position 1?
Round to one decimal.
(a)
What is the velocity at position 2?
Round to one decimal.
(a)
What is the height at position 2?
Round to one decimal.
(a)
What is the TME at position 2?
Round to one decimal.
(a)
What is the GPE at position 2?
Round to one decimal.
(a)
