Science Exercise (Preparation Of Mid-term Exam Of Grade 2 Semester 2 Of Cambridge School)

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  • 1/13 Questions

    We can see a ______________ when an object blocks the light.

    • Ghost
    • Shadow
    • Smoke
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About This Quiz

This Science Exercise is designed for Grade 2 students at Cambridge School, preparing for their semester 2 mid-term exam. It covers basic concepts like sources of light, properties of the sun and moon, and identification of natural light sources.

Science Exercise (Preparation Of Mid-term Exam Of Grade 2 Semester 2 Of Cambridge School) - Quiz

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  • 2. 

    A _______________ is used to turn on or turn off the electricity.

    • Switch

    • Buzzer

    • Motor

    Correct Answer
    A. Switch
    Explanation
    A switch is a device that is used to control the flow of electricity by turning it on or off. It acts as a bridge between the power source and the electrical device, allowing the user to easily control the flow of electricity. By flipping the switch to the "on" position, the circuit is completed and electricity can flow, while flipping it to the "off" position breaks the circuit and stops the flow of electricity. Therefore, a switch is the correct answer for this question.

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  • 3. 

    This animal can make light in the night . It is a __________

    • Bat

    • Scorpion

    • Firefly

    Correct Answer
    A. Firefly
    Explanation
    Fireflies are known for their ability to produce light through a process called bioluminescence. They have specialized cells in their abdomen that produce a chemical reaction, resulting in the emission of light. This adaptation helps them attract mates and communicate with each other in the dark. Fireflies are commonly seen flashing their lights during the night, making them the correct answer for an animal that can make light in the night.

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  • 4. 

    When there is very little light or no light is called _____________ .

    • Bright

    • Dark

    • Afternoon

    Correct Answer
    A. Dark
    Explanation
    Darkness refers to the absence or very low levels of light. When there is little or no light, it is referred to as "dark." This is the opposite of brightness, which is associated with high levels of light. Darkness is commonly experienced during nighttime or in places where there is no source of light. It is a condition that limits visibility and makes it difficult to see or perceive objects.

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  • 5. 

    Lamp, computer, iron, and television are thing in our house that uses the power of _________________ .

    • Light source

    • Buzzer

    • Electricity

    Correct Answer
    A. Electricity
    Explanation
    The correct answer is electricity because all the mentioned objects - lamp, computer, iron, and television - require electricity to function. They need an electrical power source to operate and perform their intended tasks. Without electricity, these objects would not be able to provide light, heat, or perform any electronic functions.

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  • 6. 

    Moon ________ the sun's light.

    • Gives

    • Is

    • Reflects

    Correct Answer
    A. Reflects
    Explanation
    The moon reflects the sun's light.

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  • 7. 

    A light source that has batteries and bulb is called ____________ . We can also hold it using our hands.

    • Torch

    • Stove

    • Candle

    Correct Answer
    A. Torch
    Explanation
    A light source that has batteries and a bulb is called a torch. It is portable and can be held using our hands. Torches are commonly used for providing light in dark areas or during power outages.

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  • 8. 

    These are light sources, except ______________ .

    • Earth

    • Star

    • Torch

    Correct Answer
    A. Earth
    Explanation
    The given question asks for a light source, except for one option. Earth is not a light source, as it does not emit light on its own. Stars emit light, as they are massive balls of gas that produce energy through nuclear fusion. Torches are also light sources, as they produce light through the combustion of fuel. However, earth does not emit light and relies on external sources of light, such as the sun, for illumination.

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  • 9. 

    Electricity can pass through it. It is a ______________________ .

    • Conductor

    • Insulator

    • Wood

    Correct Answer
    A. Conductor
    Explanation
    The given correct answer is "conductor". A conductor is a material that allows electricity to pass through it easily. It has free electrons that can move freely within the material, allowing the flow of electric current. In contrast, an insulator does not allow the flow of electricity, while wood is a poor conductor of electricity.

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  • 10. 

    What is it?It can store electricity.It is the other name of battery.It is a ___________________ .

    • Main electricity

    • Insulator

    • Cell

    Correct Answer
    A. Cell
    Explanation
    A cell is a device that can store electricity and is commonly referred to as a battery. It is a small electrochemical device that converts chemical energy into electrical energy. Cells are used in various electronic devices such as mobile phones, laptops, and remote controls to provide power for their operation.

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  • 11. 

    Wire is made from _____________ .

    • Rubber

    • Wood

    • Metal

    Correct Answer
    A. Metal
    Explanation
    Wire is commonly made from metal, such as copper, aluminum, or steel. These metals possess the necessary properties like conductivity, malleability, and tensile strength required for wires to transmit electricity or carry signals. Rubber and wood are not suitable materials for making wires as they lack the required conductivity and strength.

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  • 12. 

    Sun is the nearest ____________ to the earth.

    • Planet

    • Star

    • Satellite

    Correct Answer
    A. Star
    Explanation
    The Sun is the nearest star to the Earth. While the other options listed are also celestial bodies, the Sun is specifically classified as a star. It is the closest star to our planet and is essential for providing light, heat, and energy to sustain life on Earth.

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  • 13. 

    Bright glow from a lamp that allows us to see is _________________ .

    • Light source

    • Battery

    • Light

    Correct Answer
    A. Light
    Explanation
    A bright glow from a lamp is caused by light. Light is a form of electromagnetic radiation that allows us to see. It is emitted by a light source such as a lamp.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 11, 2016
    Quiz Created by
    Ayah_zaka
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