Cluster Support Review

Multiple Choice

Which among the following is the correct order of signal transmission?

• Sender- Receiver- Encode- Decode- transmit

• Sender- Encode- Transmit- Decode- Receiver

• Sender- Decode- Transmit- Encode- Receiver

• Sender- Transmit- Encode- Decode- Receiver

Multiple Choice

The given diagram shows a signal transmitted with noise. What happens to the information transmitted?

• Quality of the signal increases

• Quality of the signal decreases

• There will be no change in the signal

• Signal cannot be transmitted

Multiple Choice

Which among the following statements about the speedometer is TRUE?

• Speedometer Transmits Analog signal

• Speedometer transmits Digital signal

• The data in the speedometer never changes

• Noise will it affect the signals of speedometer

Multiple Choice

Which among the following activities CANNOT enlarge the average ecological footprint of a country ?

• Deforestation

• Increase in population

• Overuse of non renewable resources

• Reduce, Reuse, Recycle

Multiple Choice

Which among the following DO NOT help to mitigate the effects of changes in the Earth's systems?

• Use of Drones to observe protected habitats

• Using Public Transport

• Fertilizers to increase the crop yield

• Deforestation

Multiple Choice

A light source is shining on a vertical surface or a slanted surface as shown below. Which statement is correct?

• The light energy that hits the vertical surface is stronger because it is concentrated on a smaller area.

• The light energy that hits the vertical surface is weaker because it is concentrated on a smaller area.

• The light energy that hits the slanted surface is stronger because it is concentrated on a larger area.

• The light energy that hits the slanted surface is stronger because it is concentrated on a smaller area.

Multiple Choice

Summer occurs on the hemisphere of Earth that is

• Turned Away from the sun

• Tilted towards Sun

• Tilted away from the Sun

• Turned towards the sun

Multiple Choice

Which of the following would have the most daylight hours?

• A

• B

• C

• D

Multiple Choice

Which best explains why Earth is colder at the poles than at the equator?

• Earth is farther from the sun at the poles than at the equator

• Earth's orbit is not a perfect circle

• Earth's rotation axis is tilted

• Earth's surface is more tilted at the poles than at the equator

Multiple Choice

Choose the correct statement which justifies the formation of seasons?

• Revolution of earth causes the seasons

• Rotation of the earth in its axis result in season

• Tilt in the rotational axis of the earth causes seasons

• Revolution of earth and Tilt in the rotational axis of the earth causes seasons

Multiple Choice

Which among the following statements about the Moon is NOT correct?

• Moon completes rotation and revolution in 27.3 days

• Far side of the Moon can never be observed from Earth

• The moon receives the light from the sun and reflect it

• The Moon cannot rotate in its axis and can only revolve around earth

Multiple Choice

Which phase of the moon is shown in this picture of the sky at midnight?

• Full Moon
• Last Quarter
• First Quarter
• New Moon

Multiple Choice

Which phenomenon occurs when the Moon moves directly between the Sun and Earth and throws a shadow on Earth.

• Lunar eclipse

• Solar Eclipse

• Summer Solstice

• New Moon

Multiple Choice

Identify the phase of the moon during a Lunar Eclipse

• New Moon

• Full Moon

• Waxing Gibbous

• Waning Gibbous

Multiple Choice

Why don’t solar eclipses occur every new moon?

• Sun , Moon and earth do not move together during new moon

• Moon and earth are not in same side of the sun

• Sun, Moon and earth do not align in straight line

• New moon cannot produce a shadow

Multiple Choice

Where do you have to be located to observe a total Eclipse?

• Anywhere on the continent where the eclipse is occurring

• within the penumbra

• Within the penumbra and umbra

• Within the umbra

Multiple Choice

Which describes a characteristic that is shared by different galaxies in the universe?

• They all are about the same distance from the Milky Way

• They all have similar planets and stars.

• They all formed because of gravity.

• They all have the same shape.