CAIE IGCSE Physics 6.2.3.3 Light Emitted From Distant Galaxies Topic Practice

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Cambridge IGCSE Physics (0625)

1. Motion, forces and energy

2. Thermal physics

4. Electricity and magnetism

5. Nuclear physics

6. Space physics

6.1.1 The Earth

6.1.2 The Solar System

6.2.1 The Sun as a star

6.2.3 The Universe

6.2.3.1—Milky Way is one of many billions of

6.2.3.2—Redshift as an increase in the

6.2.3.3—Light emitted from distant galaxies

6.2.3.4—Redshift in the light from distant

6.2.3.5—Microwave radiation of a specific

6.2.3.6—The CMBR was produced shortly after

6.2.3.7—Speed v at which a galaxy is moving

6.2.3.8—Distance d of a far galaxy can be

6.2.3.9—Hubble constant H0 as recession speed

6.2.3.10—Current estimate for H0 is 2.2 × 10–18

6.2.3.11—D/v = 1/H0 estimates the age of the

7. Assessed scientific skills

IGCSE/CAIE/Physics//Question Bank/6. Space physics/6.2.3 The Universe/6.2.3.3—Light emitted from distant galaxies

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