WorksheetsGravitational Energy Calculations
Total questions: 77
Worksheet time: 54mins
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
Which would have the LEAST gravitational potential energy (GPE)?
A ball sitting on the ground
Moon viewed from the Earth
An airplane flying 30,000 feet above the ground
A rock sitting on top of Mt. Everest
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
At which point does the ball has the greatest gravitational potential energy (GPE)?
A
G
D
C
G
Which would have the LEAST gravitational potential energy (GPE)?
A ball sitting on the ground
Moon viewed from the Earth
An airplane flying 30,000 feet above the ground
A rock sitting on top of Mt. Everest
How could you increase the gravitational potential energy of an object without changing its mass and gravity?
Make the object larger
Lower the object towards the ground
Raise the object farther off the ground
Allow the object to roll on the ground
How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?
Decrease the object's mass
Increase the object's height
Increase the object's mass
Decrease the object's height
____________ is the ability to do work.
Energy
Force
Friction
Motion
When you are holding a book, energy is stored between the book and Earth; this type of energy is called ________ potential energy.
Kinetic Energy
Chemical Energy
Gravitational Potential Energy
Electric Energy
Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.
height and mass
friction and movement
mass and movement
height and friction
You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?
W
X
Y
Z
At which position does the child on the swing have the most gravitational potential energy?
W
X
Y
Z
At which point on the roller coaster is the gravitational potential energy the greatest?
W
X
Y
Z
What kind of energy is in a rock at the edge of a cliff?
Gravitational Potential Energy
Kinetic Energy
Both potential and kinetic energy
none of the above
Which is the correct unit for expressing gravitational potential energy?
Joule
Newton
m/s2
meter
Which of the following is the correct equation for calculating an object's gravitational potential energy?
PE = mgh
PE = mg / h
PE = mg + h
PE = gh
What is the value of the Earth's acceleration due to gravity (g)?
9.8 m/s2
100 m/s2
25 m/s2
3.14 m/s2
What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground?
g = 9.8 m/s2
9.8 Joules
1.0 Joule
0.10 Joule
11.8 m/s2
What is the kinetic energy (KE) of a 0.06kg tennis ball traveling at a speed of 150m/s?
(a)
A boulder with a mass of 2,500kg rests on a ledge 200m above the ground. What is the boulder's gravitational potential energy (GPE)?
(a)
What is the gravitational potential energy (GPE) of a 5.0kg object located 2.0m above the ground?
(a)
A student walks to school at a speed of 1.2m/s. If the student's mass is 53kg, what is the student's kinetic energy (KE)?
(a)
A 5.6kg bowling ball rolls down the lane at 3.0m/s. What is the bowling ball's kinetic energy (KE)?
(a)
A 1600kg car travels at a speed of 12.5m/s. What is its kinetic energy (KE)?
(a)
How much gravitational potential energy (GPE) does Mr. Peden have if she climbs a rope 3.5m high? She has a mass of 60kg.
(a)
A weightlifter raises a 180kg barbell to a height of 1.95m. How much gravitational potential energy (GPE) does the barbell have?
(a)
At a specific point in its swing, a pendulum has 2J of kinetic energy and 1J of potential energy. What is the pendulum's total mechanical energy?
(a)
What is the mechanical energy of a 500kg rollercoaster car moving with a speed of 3m/s at the top of a hill that is 30m high? (HINT: calculate GPE & KE)
(a)
Which statement describes the Principle of Conservation of Energy?
Energy can be destroyed.
Energy can be created.
Energy can change its form.
Energy can retained its value.
Principle of Conservation of Energy states that energy can neither be _____________ or _____________.
created
destroyed
moved
compressed
Diagram shows a trolley is placed on a runway. What is the change of energy form when the trolley moves down the runway?
Gravitational potential energy → Kinetic energy
Kinetic energy → Gravitational potential energy
Elastic potential energy → Kinetic energy
Kinetic energy → Elastic potential energy
From the diagram, state at which point the gravitational potential energy is maximum.
W
X
Y
Z
Calculate the potential energy when the roller coaster is at point Y. The mass of the roller coaster is 100kg.
Gravitational potential energy = mass, m x gravitational acceleration, g x height. Use g = 10 m/s2
3000 J
6000 J
9000 J
120000 J
At which point that the kinetic energy is at the maximum?
W
X
Y
Z
State the change in energy form from Q to R.
Gravitational potential energy → Kinetic energy
Kinetic energy → Elastic potential energy
Elastic potential energy → Kinetic energy
Kinetic energy → Gravitational potential energy
Which of the position of the ball ONLY possesses gravitational potential energy? Tick the correct answers.
A
B
C
D
Jack fired a cannonball with a mass of 2 kg into the air. The cannonball went up to 500 m before it beings to fall to the ground. Calculate the velocity of the cannonball before it begins to fall to the ground.
100 m/s
250 m/s
500 m/s
1000 m/s
A stone with a mass of 4 kg is dropped from a height of 4 m. Calculate the kinetic energy of the rock when the rock falls to the ground.
180 J
160 J
1800 J
2400 J
An object's gravitational potential energy store can be increased by...
decreasing the size of the object
by lifting the object higher
increasing the velocity (speed) of the object
decreasing the mass of the object
An object's gravitational potential energy store can be increased by...
decreasing the size of the object
by lifting the object higher
increasing the velocity (speed) of the object
decreasing the mass of the object
Q.
What force works on this picture?
Gravitational Force
Magnetic Force
Gravitational Field
Friction Force
Which ball has more potential energy?
The ball on the lower chair
The ball on the higher chair
gravitational potential energy exist between ___________
all objects with mass
all objects without mass
some objects with mass
when object height increases , gravitational potential energy________
increases
decreases
does not change
which skater has more gravitational potential energy?
yellow skater
blue skater
both skaters have equal gravitational potential energy
Which point has the least amount of gravitational potential energy?
A
B
C
D
Which point has the most gravitational potential energy
A
B
C
D
When a pendulum swings, at which point is potential energy at its greatest?
2
3
4
1 and 5
At which point does the ball has the greatest gravitational potential energy (GPE)?
b
c
f
a
Which point represents maximum potential energy?
z
y
x
w
Why does an object hit the ground with more force when it starts from a higher point
because it has less gravitational potential energy
because it has the same gravitational potential energy
because it has more gravitational potential energy
It does not have more force when dropped from a higher point
At what position does the rock have the greatest kinetic energy?
E
D
C
A
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
At which point does the ball has the greatest gravitational potential energy (GPE)?
A
G
D
C
G
What is the formula for gravitational potential energy?
distance / time
mass x acceleration
velocity / time
½(mass) x (velocity)2
(mass) x (acceleration of gravity) x (height)
What is potential energy?
The energy an object has due to its atomic structure.
The energy an object has due to its chemical composition.
The energy an object has due to its motion.
The energy an object has due to its position or condition.
3. The SI unit of energy is _____
Watts
Volts
Joule
Radians
Where would a person have to be located to have the minimum potential energy?
up on the roof
down in the basement
in the middle
outside
What two factors affect an object's potential energy?
area and volume
area and height
mass and height
mass and velocity
An apple falling from a tree has
Kinetic Energy
Gravitational Potential Energy
Both
A running dog has
Kinetic Energy
Gravitational Potential Energy
Both
A boy standing on a diving board has
kinetic energy
gravitational potential energy
both
A plane flying in the sky has
kinetic energy
gravitational potential energy
both
Identify the type of energy and the object with more energy.
KE: A 1200 kg car moving at 25 m/s
KE: A 1200 kg car moving at 35 m/s
GPE: A 1200 kg car moving at 25 m/s
GPE: A 1200 kg car moving at 35 m/s
Identify the type of energy and the object that has more.
GPE: A 700 kg helicopter 20 m above the ground.
GPE: A 700 kg helicopter 10 m above the ground.
KE: A 700 kg helicopter 20 m above the ground.
KE: A 700 kg helicopter 10 m above the ground
Identify the type of energy and which object has more.
KE: A 300 kg bear running at 4 m/s
KE: A 400 kg bear running at 4 m/s
GPE: A 300 kg bear running at 4 m/s
GPE: A 400 kg bear running at 4 m/s
Identify the type of energy and the object that has more
KE: A 1.2 kg textbook on a 2.0 m high shelf
KE: A 1.5 kg textbook on a 2.0 m high shelf
GPE: A 1.2 kg textbook on a 2.0 m high shelf
GPE: A 1.5 kg textbook on a 2.0 m high shelf
An object has more kinetic energy if . . .
It speeds up.
It gains height.
It slows down.
It loses height.
An object has more kinetic energy if . . .
It has more mass.
It gains height.
It loses height.
It has less mass.
An object has more gravitational potential energy if. . .
It has more mass.
It has less mass.
It speeds up.
It slows down.
An object has more gravitational potential energy if. . .
It speeds up.
It slows down.
It gains height.
It loses height.
A bird perched in a tree has
Kinetic Energy
Gravitational Potential Energy
Both
A car racing around a track has
Kinetic Energy
Gravitational Potential Energy
Both
An elevator moving upward has constant __________, but is changing its ___________
kinetic energy; gravitational potential energy
gravitational potential energy; kinetic energy
overall energy; kinetic energy
overall energy; gravitational potential energy
