IGCSE Astrophysics

Which of the following is the largest?

• Planet

• Galaxy

• Satellite

• Comet

• Star

Tags

NGSS.MS-ESS1-3

What is the reason a Main sequence star is so stable?

• The number of atoms remain the same

• The radiation pressure balances the pressure of weight

• Magnetic forces within it hold it together

• It has plenty of emotional support from it's friends

Tags

NGSS.HS-ESS1-1

What is a comet?

• Large rocky ball of ice that orbits the sun

• Cluster of billions of stars

• Lumps of rock or iron that orbit the sun

• Minor planets

Tags

NGSS.MS-ESS1-3

Which of the following are evidence for the big bang?

• Cosmic microwave background radiation

• Doppler effect

• Static electricity

• Isotropic

Tags

NGSS.HS-ESS1-2

The force of gravity ____ as the mass of an object increases.

• decreases

• increases

• remains constant

• disappears

Tags

NGSS.HS-PS2-4

Which of the following planets has the greatest orbital speed?

• Mercury

• Earth

• Saturn

• Venus

Evidence supporting the Big Bang Theory.

• background radiation

• dark matter

• escape velocity

• gravitational waves

Any object that orbits another object.

• Earth

• elipse

• star

• satellite

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Which planet would have the greatest period?

• Jupiter

• Mars

• Neptune

• Saturn

Which planet would have the greatest orbital velocity?

• Earth

• Uranus

• Neptune

• Pluto