1. A solar panel converts light energy from the sun into electrical energy. Solar power is an important renewable energy source that helps reduce greenhouse gas emissions.
2. A wind turbine converts the kinetic energy of wind into electrical energy through its spinning blades. Wind power is a clean source of electricity that becomes more cost effective as technology advances.
3. A hydroelectric dam generates electrical energy from the potential and kinetic energy of moving water. Dams provide large amounts of renewable hydroelectric power and help manage water resources.
Use of mutants in understanding seedling development.pptx
forms-of-energy-cot.pptx
1.
2. Tell whether the following statements
are kinetic or potential energy.
______________1. rock on the top of
mountain
______________2. running dog
______________3. a sitting child
______________4. a car parked in a garage
______________5. turned on electric fan
POTENTIAL
KINETIC
POTENTIAL
POTENTIAL
KINETIC
3.
4. A banana is a berry not a fruit. This is because botanically a
berry contains seeds inside the flesh, not outside. Banana
does not grow on a tree but on an herb. A tree’s stem is
made of wood unlike the banana’s, which is made of fibres.
You can’t sow seeds and grow them. Bananas are grown by
cutting a piece from another plant, sort of cloning. Which
means the banana you are eating today is genetically the
same as the banana your grandfather ate.
READING SCIENCE
5. 1.Place your fingers on their throat and say
loudly “ang ganda/ pogi ko ngayon”.
What have you produced
when you shout or speak?
What does your fingers felt
while you shout or speak?
11. SOUND LIGHT ELECTRICAL
FORMS OF ENERGY
GROUP 1: Complete the graphic organizer by writing
examples of sources of different forms of energy.
12. FORMS OF ENERGY
SOUND LIGHT ELECTRICAL
GROUP 2: Use a table to sort the pictures according to
its form of energy.
13.
14. GROUP 3:Identify the
form of energy in the
pictures. Identify
whether the picture
shows of sources
sound energy, light
energy, or electrical
energy
18. SOUND ENERGY
Sound Energy is
produced in different
ways. The simple way
is when objects hit
each other.
19. Another way to make sounds is by making
vibrations. When you speak, sing or hum, your vocal
cord vibrates.
20.
21. LIGHT ENERGY
Also known as
radiant energy.
Light energy from the
sun reaches us in the
form of light.
22. Light energy cannot
move objects on its
own. But it can be
converted onto
another form of
energy, like electrical
energy, to make
objects move and
function.
23.
24. This is also true for solar-powered cars. The solar
panels convert light energy into electricity which
is then used to make the motor run
32. 1.Are candles still important
nowadays? Why?
2.What can we do to save
electricity?
3.What do you think will happen if
teachers do not have voices?
33. Directions: Choose the letter of
the best answer. Write the letter
of your answer on your paper.
34. 1.Which form of energy is the
main source of light on earth?
A. Fire energy
B. Light energy
C. Sound energy
D. Electrical energy
35. 2. It is an energy produced by
vibration.
A. Heat energy
B. Light energy
C. Sound energy
D. Electrical energy
36. 3. Which form of energy travels
through wire conductors?
A. Heat energy
B. Light energy
C. Sound energy
D. Electrical energy
37. 4. Sound is made by __________.
I. colliding objects
II. vibrating objects
III. heated objects
A. I only B. II only
B. I and II D. I, II, and III
38. 5. When a battery is charged, how
does electrons move or travel?
A. It travels in three directions.
B. It travels in many directions.
C. It travels in different directions.
D. It travels in one direction in and
out of the battery.
39. 1.Which form of energy is the
main source of light on earth?
A. Fire energy
B. Light energy
C. Sound energy
D. Electrical energy
40. 2. It is an energy produced by
vibration.
A. Heat energy
B. Light energy
C. Sound energy
D. Electrical energy
41. 3. Which form of energy travels
through wire conductors?
A. Heat energy
B. Light energy
C. Sound energy
D. Electrical energy
42. 4. Sound is made by __________.
I. colliding objects
II. vibrating objects
III. heated objects
A. I only B. II only
B. I and II D. I, II, and III
43. 5. When a battery is charged, how
does electrons move or travel?
A. It travels in three directions.
B. It travels in many directions.
C. It travels in different directions.
D. It travels in one direction in and
out of the battery.
Motivation.
What is the picture all about?
What is written on it?
If it is an announcement about brown out, what do you think will be missing?
Clap your hands. Drop a book on the table. Marbles and billiard balls produce clicks as they collide. Musical instruments called percussions also produce sound this way. Sound produced this way comes from the lost kinetic energy when moving bodies collide.
Another way to make sounds is by making vibrations. When you speak, sing or hum, your vocal cord vibrates. Wind instruments make their sound by sustaining the vibration of columns of air in the tubes. Stringed instruments make sound when their strings vibrate.
What are the examples of objects that produce sounds?
Solar panels are also installed in some homes as an alternative energy provider.
What are the examples of objects that produce light?
Within an atom, electron and protons create a charge. This charge can be transferred between bodies using direct contact with a conducive material like a wire.
The alternating current form is usually used to power larger objects such as residences and buildings.
What are the other objects that produces electricity?
