Energy Transfers (PHYSICS)
KWLH CHART
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W _____/01/18
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__/11/20 Topic: Understanding
potential energy and
kinetic energy
Learning Objective:
To recognise energy transfers due to falling objects.
Learning Outcome:
Will be able to explain how energy is transferred
using gravitational potential energy, Kinetic Energy.
Vocabulary Bank:
gravity, gravitational potential
energy, kinetic energy
STARTER
COMPARE AND CONTRAST BETWEEN
KINETIC ENERGY AND POTENTIAL
ENERGY
TASK 1:
Analyze the type of energies possessed by a falling
object at position A, position B and Position C
dropping from some height.
MID PLEANARY
• Join at gospiral.ac with code XSQWD
AFL
1. Explain about conservation of mechanical energy?
2.
TASK 2: Deduce law of conservation of
energy: Breakout rooms
https://phet.colorado.edu/sims/html/energy-skate-park-basics/latest/energyskate-park-basics_en.html
http://www.solpass.org/5s/images/roller.gif
Potential and Kinetic Energy | #aumsum #kids #science
#education #children – YouTube
Reading : Energy from Gravity of Falling Objects by Ron Kurtus - Physics
Lessons: School for Champions (school-for-champions.com)
TASK 2: Deduce law of conservation of
energy:
TASK 2A: Identify the type of maximum energy at position
1, 2,3 and 4?
Eliena
Fatima
Arjun
Amir
Aryan
Anishka
Khidab
Niranjan
Task 2B: Calculate the values of PE at different points
A
B
D
C
TASK 2C:
• Sketch two graphs to show how gravitational
potential energy and kinetic energy changes for a
falling object?
Sinuri
Mohammed
Mia
Julienne
Aysana
Advik
Kavya
Joerel
Kristina
TASK 2 Extended:
Analyze the position with highest
value of K.E and P.E
B
A
C
SUMMARY
PLENARY
Factors Affecting GPE
20 kg
g = 10 N/kg
Task 3:
Peer-marking =
PM
By: (Checker’s name)
1. joule, J
2. gravity
3. 10 m high
4. Saturn
5. a) A b) C c) A d) C
6. The graph(s) should show a decreasing line for GPE and
an increasing line for KE
* should be able to establish the link between kinetic energy and speed – the
more KE there is, the faster the object moves.
Identify whether there is potential elastic energy
on the spring: normal, stretched and compressed.
Differentiated Task2:
•What causes the jack-in-the-box to
bounce up when the lid is open?
•What forms of energy are involved in
question number one?
Answers:
1. Energy is stored in a spring when it is compressed; when the
spring is released, the energy is transferred by movement;
causing ‘Jack’ to bounce up.
2. Elastic potential energy and kinetic energy
Differentiated Task 2: Analyse the picture involving 2 more
forms of energy together with elastic potential energy. Fill in the blanks
with the amount of energy: zero, minimum, maximum, low, high
LO 16: Identify simple energy
transfers which involve
gravitational potential energy,
elastic potential energy and
kinetic energy.
All correct = DEVELOPING
With any mistake = EMERGING
Differentiated Task 2:Complete the energy transfer
diagram of a tennis ball with appropriate form of energy.
LO 20: Interpret and draw energy
transfer diagrams for a range of different
energy transfers, including gravitational
potential energy, elastic potential
energy, chemical energy and kinetic
energy.
All correct = DEVELOPING
With any mistake = EMERGING
Extension Task :
Plan an investigation to
find the minimum
height of drop to burst
a water balloon.