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WorksheetsHomework Chapter 2 - Energy
Total questions: 13
Worksheet time: 39mins
What is the primary source of energy for the Earth?
Water
Wind
Sun
Soil
When you turn on a light bulb, what is the electrical energy changed into?
Kinetic and heat energy
Light and heat energy
Light and kinetic energy
Light and chemical energy
Which of the following is the example of potential energy?
A stretched rubber band
A flashlight turned on
A moving car
An egg cooked
Which of the following is the correct energy chain of energy changes to show about the picture?
Heat energy → light energy
Light energy → electrical energy
Heat energy → electrical energy
Light energy → heat energy
Study the picture. Arrange the energy chain in order based on the picture shown.
kettle
water
cup
surrounding environment
Ms. Arsa makes a cup of hot tea. She puts it on the table while she watches a Korean drama. After a while, the tea is not hot anymore. Where does the heat go to?
The heat energy is gone
The heat energy has moved because of the wind
The heat energy is transferred to the water
The heat energy is transferred to the surrounding air
When a blob of butter melts in a spoon placed in a hot cup of water, what happens to the heat from the water during this process?
The heat from the water moves to the spoon and then warms the butter until it melts
The heat from the butter escapes into the air, causing the butter to melt
The heat from the spoon cools down, which makes the butter melt
The heat from the water transforms into light energy, making the butter melt
Match the following object with the correct energy changes that happened on each object when it works.
Wind turbines
Movement -> electrical energy
Swtiching on television
Electrical -> light and sound energy
Hairdryer
Electrical -> heat and movement energy
Rubbing hands
Movement -> heat energy
Battery-powered toy
Chemical -> movement energy
Organize these living things into the right categories
Grass
Berries
Cow
Bear
Tiger
Rabbit
Rat
Eagle
Put the living things in the right order to make a food chain.
Grass
Grasshopper
Frog
Snake
Hawk
Which organism is getting energy from the mouse?
Cricket
Grass
Fox
Sun
What does the arrow point to in a food chain?
only the plants in a food chain
only the animals in a food chain
the organism that gets the energy
the organism that lives the longest
