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WorksheetsGrade 2_Q4 : Energy
Total questions: 85
Worksheet time: 47mins
What are the two types of light energy?
(a)
What are the examples of natural sources of light?
Sun, stars, fire, lightning, Moon
Lighter
________ is a form of energy that enables us to see the things around us.
True or False. Light energy can come from natural sources and artificial sources.
(a)
What are examples of artificial sources of lights?
What is our main source of natural light energy?
True or False. Light from the sun makes plants, animals, and humans live on earth.
(a)
True or False. The moon has its own light. It only reflects back the light it receives from the Sun.
True or False. Another source of light are the stars. They shine with their own light.
True or False. The moon does not have its own light. It only reflects back the light it receives from the Sun.
True or False. The artificial sources of lights include candle light, light from bulbs and flashlights and burners.
How does a candle produces light?
A candle produces light through a wick that is burned to produce light.
True or False. A wood is burned to produce fire that gives off light.
How can a flashlight produce light?
A flashlight has batteries that convert electrical energy into light energy through a bulb or LED.
______ is the ability to do work.
Write NS for natural source of light and AS for artificial sources for the following :
1. Lampshade 2. Head light 3. Gas Burners 4. Florescent Lamp 5. Fire
6. Candle 7. Flash Light 8. Stars 9. Sun 10. Cell Phone
(a)
What kind of light source are the stars?
What word refers to the ability to do work?
What is the earth's main source of light?
What kind of light source is a candle flame?
Natural source
Artificial source
It is the dark figure or image cast by an object blocking light?
True or False. Shadow is formed when light passes through a transparent objects.
True or False. Shadow is formed when light passes through an opaque objects.
True or False. Shadow is not formed when light passes through an opaque objects.
True or False. Light travels in a straight line. When an object blocks the path of light, a shadow is formed.
True or False. The objects that block light form shadows.
These are objects reflect light, they form shadows when they block the path of light.
The kind of objects that allow light to pass through them.
True or False. We can see objects on the other side of the glass because light passes through it.
Write O if the object is opaque and T if the object is transparent.
1. Metal Cup 2. Book 3. Pencil 4. Tables
5. Clear Plastic 6. Aquarium 7. Car 8. Clear water 9. Drinking Glass 10. Paper
(a)
What is a shadow?
How is a shadow formed?
What kind of objects can form shadows?
Opaque Objects
How can shadows be useful?
______ is an energy in motion. It can make things warm or hot.
Shadow
Heat
Sun
What do you call the materials through which heat energy flows easily?
What are the examples of conductors?
metals, nails, metal spoons, and other objects made of metal
Wood
Plastics
Cloth
What do you call the materials through which heat energy cannot flow easily?
What are examples of insulators?
Rubber, glass, plastic, wood, leaves
Aluminum
Metal, copper
What are some sources of heat?
True or False. You can also produce heat by rubbing your palms together and rubbing things against each other.
What are the importance of heat?
True or False. Heat energy is not important.
True or False. Hot water can dissolve powdered mild and sugar faster than cold water can.
True or False. Heat does not help dry clothes.
True or False. Heat is also used to cook food.
True or False. Heat can not be harmful.
True or False. Too much heat from the sun can cause head stroke, skin cancer and sun burn.
True or False. Heat can burn things which can cause fire.
Write C if the material is a conductor and I if the material is an insulator :
1. Cotton Cloth 2. Paper Doll 3. Metal Pin 4. Wire 5. Plastic container 6. thumbtacks 7. Pillows 8. Concrete nail 9. Slippers 10. Book
(a)
What is produced by vibrating objects.
What is the back and forth movement of particles around an object?
What is the softness and loudness of sound?
Noise
Vibration
Volume
Pitch
What do you call the loud and irritating sound produced by anything or anyone? It can harm your ears, painful and can damage your eardrums.
True or False. Some loud sounds like siren of ambulance, fire truck or a police.
Identify the following as Loud or Soft sounds :
1. Singing Choir 2. Roaring of Thunders 3. Whispering Children 4. Barking Dogs 5. Tweeting Birds 6. Plane taking off 7. Low volume radio 8. Playing Bands 9. Shouting People 10. Ticking Clock
(a)
What forms of energy does the sun directly five to the eart?
heat and light energy
sound and chemical energy
electricity and flash energy
Which form of energy is used to cook food?
heat energy
sound energy
light energy
Which are natural sources of light energy?
gas lamp and burner
light bulb and candle
moon and stars
Which activity cannot damage your ears?
listening to your teacher
listening to radio in full volume
listening to loud music in your earphone the whole day
Which pair gives the uses of heat and light energy?
can warm and brighten the earth
can cook and dry clothes
can give light and sound
What energies do burning wood and lighted burner give?
Heat and Light
Heat only
Light only
How can shadows of trees help you during a hot summer day?
What is a push or a pull?
Energy
Vibration
Force
What is the force when you are trying to move something away from you?
What is the force when you are trying to move something towards you?
What do you call the materials that attract objects made of iron?
What do you call the objects that are attracted by magnets?
magnetic materials
non-magnetic materials
What do you call the objects that are not attracted by magnets?
magnetic materials
non-magnetic materials
True or False. A magnet has two poles, the north pole and the south pole.
True or False. Like or same magnetic poles repels.
True or False. Opposite magnetic poles attract each other.
____________ is the pull of the earth on an object. Things fall down because of this.
True or False. Electricity makes objects move. It can make a machine move because of the electric current that flows from a source to the machine.
What do you call a group of cells that can produce electrical energy?
What do you call the moving air? Its force can lift kite up in the sky and keep it flying, can make branches of trees sway, it can also push sailboats in the water and can turn windmills.
True or False. Water has force. The water current in rivers, seas and oceans can also make objects move such as sailboats and ships.
Classify the force being used for below :
1. A cellphone 2. A light bulb 3. Soil carried from the river to different places 4. Paper clips are attracted by a magnet 5. Sailboats are moved by currents in the ocean 6. A remote control 7. A kite up in the air 8. A ball falling to the ground 9. Swaying branches of trees 10. An electric fan
(a)
What do you call the change in position and direction of an object? It is also called movement.
What is the force that makes moving objects move slowly until it stops?
True or False. There is more friction when on a rough surface than on a smooth surface.
True or False. It is easier to move on a rough surface than on a smooth one.
What are the five (5) things that can help objects move?
(a)
Which can be moved by wind and water at the same time?
Boat
Jeepney
Cart
Which object can be attracted by a magnet?
Door Knob
