Homework Practice

Printable assignment

Earth System: Spheres and Solar Energy

Section A: Core Ideas

Question 1mcq

Which example shows interaction between the hydrosphere and atmosphere?

A.Rocks orbit the Sun.

B.The Moon reflects sunlight.

C.Water evaporates from oceans into air.

D.A compass points north.

Question 2mcq

Which surface usually reflects more solar radiation?

A.Dark soil

B.Ocean water at noon

C.Black asphalt

D.Fresh snow

Question 3mcq

Which option correctly completes this statement: Solar radiation is best described as?

A.Electromagnetic radiation from the Sun.

B.Sound waves travelling through space.

C.Only visible red light.

D.Matter particles falling from clouds.

Question 4mcq

Which option correctly completes this statement: For electromagnetic waves, higher frequency generally means?

A.No energy

B.Shorter wavelength

C.Slower than sound always

D.No relation to wavelength

Question 5mcq

What is the approximate speed of light in vacuum?

3 \times 10^3\,m/s

300\,m/s

3 \times 10^8\,m/s

30\,m/s

Section B: Application Practice

Question 6mcq

A glacier melts and adds water to a river where fish live. Which spheres are directly involved?

A.Only geosphere

B.Only atmosphere

C.Only outer space

D.Cryosphere, hydrosphere and biosphere

Question 7mcq

Which Earth component mainly transmits visible sunlight through to the surface?

A.Atmosphere

B.Geosphere

C.Biosphere

D.Core

Question 8mcq

Which type of energy reaches Earth from the Sun even through the vacuum of space?

A.Sound energy

B.Electromagnetic radiation

C.Water current energy

D.Seismic waves

Question 9mcq

Which relation connects wave speed, frequency and wavelength?

v = f + \lambda

v = \frac{\lambda}{f}

v = f\lambda

v = f - \lambda

Question 10mcq

Why do we see sunlight after it travels across space?

A.Light needs air from the Sun to Earth.

B.Sunlight is a sound wave.

C.Sunlight is pulled only by ocean water.

D.Light can travel as electromagnetic radiation through vacuum.