Gravitational Potential Energy
1.
What type of objects store kinetic
energy?
2.
A moving van has a kinetic energy
of 800,000 and a velocity of 20
m/s. What is the mass of the van?
G
r
a
v
i
t
a
t
i
o
n
a
l
p
o
t
e
n
t
i
a
l
e
n
e
r
g
y
Gravitational
Potential
Energy
Height
Metres
Joules
Mass
State
the types of object that have gravitational
potential energy.
Recall
the equation for GPE.
Calculate
gravitational potential energies using the
equation.
G
r
a
v
i
t
a
t
i
o
n
a
l
f
i
e
l
d
s
t
r
e
n
g
t
h
Stretch:
What would happen to
the gravitational field strength
the further away we went from
Earth?
The greater the height on an object
above the ground, the greater the GPE it
will have. The stronger the gravitational
field strength, again the greater the GPE.
On Earth, the gravitational field strength
is
9.8 N/kg
.
E
q
u
a
t
i
o
n
f
o
r
g
r
a
v
i
t
a
t
i
o
n
a
l
p
o
t
e
n
t
i
a
l
e
n
e
r
g
y
Stretch:
Rearrange the
equation to give
equations for mass,
gravitational field
strength and height.
R
e
a
r
r
a
n
g
e
d
e
q
u
a
t
i
o
n
s
Stretch:
Dr. Edmunds drops his iPad
from a height of 2m. If the initial GPE
is 3.92 J, what is mass of the iPad?
W
o
r
k
s
h
e
e
t
Complete the worksheet!
B
a
s
i
c
a
n
s
w
e
r
s
B
a
s
i
c
a
n
s
w
e
r
s
M
e
d
i
u
m
a
n
s
w
e
r
s
M
e
d
i
u
m
a
n
s
w
e
r
s
H
a
r
d
a
n
s
w
e
r
s
S
t
r
u
g
g
l
e
t
i
m
e
Exam questions so exam
conditions!
You have 8 minutes.
S
t
r
u
g
g
l
e
t
i
m
e
r
e
v
i
e
w
S
t
r
u
g
g
l
e
t
i
m
e
r
e
v
i
e
w
Explore the concept of gravitational potential energy and its relation to mass, height, and gravitational field strength. Learn about kinetic energy, equations for GPE, rearranged equations, and practical applications through examples and challenges.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
E N D
Presentation Transcript
SciDoc Gravitational potential energy Gravitational potential energy 1. What type of objects store kinetic energy? 2. A moving van has a kinetic energy of 800,000 and a velocity of 20 m/s. What is the mass of the van? Last Lesson Last Term Last Year Stretch & Challenge I do We do Test I do We do You do Do Now
SciDoc Keywords Learning Objectives Keywords Gravitational Potential Energy Height Metres Joules Mass State the types of object that have gravitational potential energy. Recall the equation for GPE. Calculate gravitational potential energies using the equation. I do We do Test I do We do You do Do Now
SciDoc Gravitational field strength Gravitational field strength The greater the height on an object above the ground, the greater the GPE it will have. The stronger the gravitational field strength, again the greater the GPE. On Earth, the gravitational field strength is 9.8 N/kg. Stretch: What would happen to the gravitational field strength the further away we went from Earth? I do We do Test I do We do You do LO:
SciDoc Equation for gravitational potential energy Equation for gravitational potential energy ??= ? ? ? Stretch: Rearrange the equation to give equations for mass, gravitational field strength and height. Gravitational potential energy, ?? in joules (J) Mass, ? in kilograms (kg) Gravitational field strength, ? in newtons per kilogram (N/kg) Height above the ground, in metres (m) I do We do Test I do We do You do LO:
SciDoc Rearranged equations Rearranged equations Stretch: Dr. Edmunds drops his iPad from a height of 2m. If the initial GPE is 3.92 J, what is mass of the iPad? ?? ? = g g x ? ?? m m x ? h = I do We do Test I do We do You do LO:
SciDoc Worksheet Worksheet Complete the worksheet! I do We do Test I do We do You do LO:
SciDoc Basic answers Basic answers I do We do Test I do We do You do LO:
SciDoc Basic answers Basic answers I do We do Test I do We do You do LO:
SciDoc Medium answers Medium answers I do We do Test I do We do You do LO:
SciDoc Medium answers Medium answers I do We do Test I do We do You do LO:
SciDoc Hard answers Hard answers I do We do Test I do We do You do LO:
SciDoc Struggle time Struggle time Exam questions so exam conditions! You have 8 minutes. I do We do Test I do We do You do LO:
SciDoc Struggle time review Struggle time review I do We do Test I do We do You do LO:
SciDoc Struggle time review Struggle time review I do We do Test I do We do You do LO:
