Electricity and Earth Science Quiz

What causes day and night on Earth?

• Earth's revolution around the Sun

• Earth's rotation on its axis

• The Moon's orbit around Earth

• The Sun's movement around Earth

Answer explanation

Day and night on Earth are caused by its rotation on its axis. As the Earth spins, different parts face the Sun, experiencing daylight, while the opposite side is in shadow, experiencing night.

What happens to the side of Earth facing away from the Sun?

• It experiences day

• It experiences night

• It becomes warmer

• It rotates faster

Answer explanation

The side of Earth facing away from the Sun is in shadow, resulting in night. This occurs because the Sun illuminates only one half of the Earth at a time, leaving the opposite side dark.

What is the imaginary line that Earth spins around called?

• Equator

• Orbit

• Axis

• Meridian

Answer explanation

The imaginary line that Earth spins around is called the axis. It runs from the North Pole to the South Pole, allowing the planet to rotate. The equator, orbit, and meridian refer to different concepts.

Why does the Sun appear to move across the sky during the day?

• The Sun moves around Earth

• Earth's rotation makes it seem that way

• The Moon blocks the Sun's path

• Clouds push the Sun

Answer explanation

The Sun appears to move across the sky due to Earth's rotation on its axis. As Earth spins, different parts of the planet face the Sun, creating the illusion of the Sun moving from east to west.

A conductor is a material that _________ can pass through.

Answer explanation

A conductor is a material that allows electricity to pass through. This property is essential for materials used in electrical applications, making 'electricity' the correct answer.

When is the Sun highest in the sky?

• Sunrise

• Noon

• Sunset

• Midnight

Answer explanation

The Sun is highest in the sky at noon, when it reaches its zenith. This is the time of day when shadows are shortest and the Sun's rays are most direct.

The opposite of conductor is _______.

• Insulator

• Moderator

• Co-operator

• Operator

Answer explanation

The opposite of a conductor, which allows electricity to flow, is an insulator, which resists electrical flow. Therefore, the correct answer is insulator.

Putting electrical devices close to water is very __________.

• Helpful

• Dangerous

• Friendly

• Hateful

Answer explanation

Putting electrical devices near water is very dangerous because water conducts electricity, increasing the risk of electric shock or short circuits. Therefore, the correct choice is 'Dangerous'.

What type of energy is electricity?

• Mechanical

• Electrical

• Sound

• Heat

Answer explanation

Electricity is a form of energy resulting from the flow of electric charge. Therefore, the correct answer is 'Electrical', as it directly describes the nature of electricity.

Which of the following is NOT powered by electricity?

• Hairdryer

• Toaster

• Pencil

• Phone

Answer explanation

A pencil is a writing instrument that does not require electricity to function, unlike a hairdryer, toaster, and phone, which all rely on electrical power to operate.