Revision NotesExam QuestionsTarget TestPast Papers
GCSEPhysicsOCRPhysics A (Gateway)Exam Questions8. Global ChallengesEarth & Space

Earth & Space (OCR GCSE Physics A (Gateway)): Exam Questions

Exam code: J249

52 mins20 questions

Select a download format for Earth & Space

Scroll for more

Select an answer set to view for
Earth & Space

11 mark

Which statement about geostationary satellites is correct?

  • They appear to be in a fixed position relative to a point on the Earth.

  • They are in a polar orbit.

  • They are positioned 400 km above the Earth’s surface.

  • They take 2 hours to orbit the Earth.

Choose your answer

21 mark

Higher Tier Only

 The average temperature on the Earth has increased over the last century.

Which statement explains why?

  • Radiation absorbed by the Earth has decreased.

  • Radiation absorbed is less than radiation emitted.

  • Radiation absorbed is greater than radiation emitted.

  • Radiation emitted by the Earth has increased.

Choose your answer

31 mark

Which statement about a star that explodes into a supernova is correct?

  • The star has more mass than the sun.

  • The star is older than the sun.

  • The star will become a white dwarf.

  • The star’s core expands.

Choose your answer

41 mark

Higher Tier Only

A planet moves in a circular orbit around its star.

Which statement is correct?

  • The planet travels at changing speed and changing velocity.

  • The planet travels at changing speed but constant velocity.

  • The planet travels at constant speed and velocity.

  • The planet travels at constant speed but changing velocity.

Choose your answer

51 mark

An artificial satellite is kept in its low polar orbit by a gravity force from a planet.

The satellite is moved to a higher orbit above the planet.

Which statement is correct about the satellite in this higher orbit?

  • The force of gravity is greater and its speed decreases.

  • The force of gravity is greater and its speed increases.

  • The force of gravity is less and its speed decreases.

  • The force of gravity is less and its speed increases.

Choose your answer

61 mark

Higher Tier Only

 Planet Ocra is in a circular orbit around a star.

q11-paper4-june2098-ocr-gcse-physics

Which statement is correct?

  • The acceleration of Ocra is zero.

  • The speed of Ocra is changing.

  • The velocity of Ocra is changing.

  • The velocity of Ocra is zero.

Choose your answer

71 mark

Higher Tier Only

 An artificial satellite orbits the Earth in a circular path.

The satellite is moved further away from Earth to another orbit.

Which row in the table is correct?

 

Force of gravity

Speed in orbit

Time period

A

decreases

decreases

decreases

B

decreases

decreases

increases

C

decreases

increases

increases

D

increases

increases

increases

 

    Choose your answer

    81 mark

    Which statement is correct about geostationary satellites?

    • They are above the equator and they orbit the Earth in about 90 minutes at a high orbit.

    • They are above the equator and they orbit the Earth in 24 hours at a high orbit.

    • They are above the equator and they orbit the Earth in 24 hours at a low orbit.

    • They are above the poles and they orbit the Earth in 24 hours at a low orbit.

    Choose your answer

    91 mark

    How was the Sun formed?

    • From dust and gas pulled together by gravity leading to a fission reaction.

    • From dust and gas pulled together by gravity leading to a fusion reaction.

    • From dust and gas pushed together by gravity leading to a fission reaction.

    • From dust and gas pushed together by gravity leading to a fusion reaction.

    Choose your answer

    101 mark

    The Sun was formed from a cloud of dust and gas.

    Which force brought together the particles of the cloud?

    • Electrostatic

    • Frictional

    • Gravitational

    • Magnetic

    Choose your answer

    111 mark

    Which statement is evidence for an expanding universe?

    • Light from galaxies is red shifted.

    • Nuclear fusion occurs in stars.

    • Many stars have orbiting planets.

    • Stars were formed from dust and gas.

    Choose your answer

    121 mark

    Which row A, B, C or D, describes what has happened to light that has undergone red shift?

     

    Wavelength

    Frequency

    A

    Decreases

    Decreases

    B

    Decreases

    Increases

    C

    Increases

    Decreases

    D

    Increases

    Increases

      Choose your answer

      131 mark

      The table contains statements about red-shift and galaxies.

      Which row in the table is correct?

       

      Statement 1

      Statement 2

      A

      All galaxies move apart at the same speed.

      They show both red-shift and blue-shift.

      B

      Distant galaxies show more red-shift.

      The distant galaxies are moving apart faster than nearby ones.

      C

      Distant galaxies show more red-shift.

      The distant galaxies are moving apart slower than nearby ones.

      D

      There are no galaxies that show blue-shift.

      All galaxies are moving away from each other.

       

        Choose your answer

        141 mark

        All bodies emit electromagnetic radiation.

        Body R is at a higher temperature than body S.

        Which statement is correct?

        • R emits radiation with a mean higher frequency.

        • R emits radiation with a mean longer wavelength.

        • S emits radiation with a higher intensity.

        • S emits radiation with a mean shorter wavelength.

        Choose your answer