3.3.32

General Principles of Radiation

Test yourself on General Principles of Radiation

After reading these notes, test your knowledge with free interactive questions on Seneca — used by over 10 million students.

Radiation

Infra-red radiation can transfer thermal energy without a medium (substance to travel through). All bodies (objects) emit radiation.

Infra-red radiation can transfer thermal (heat) energy without needing a medium (a substance to travel through). All bodies (objects) emit radiation.

Electromagnetic wave

Electromagnetic wave

  • Infra-red radiation is a type of electromagnetic wave.

  • It is part of the electromagnetic spectrum.

  • We cannot see infra-red radiation, but we can feel it as heat.

The Sun

The Sun

  • The Sun emits infra-red radiation, which transfers thermal (heat) energy to the Earth.

  • Since infra-red radiation does not need a medium, it can travel through space.

Jump to other topics
1

Biology

1.1

Cells, Tissues & Organs

1.2

Reproduction & Variation

1.3

Ecological Relationships & Classification

1.4

Digestion & Nutrition

1.5

Plants & Photosynthesis

1.6

Biological Systems & Processes

2

Chemistry

2.1

Particles

2.2

Chemical Reactions

2.3

Atoms, Elements, Compounds

2.4

The Periodic Table

2.5

Materials & the Earth

2.6

Reactivity

2.7

Energetics

2.8

Properties of Materials

3

Physics

3.1

Energy

3.2

Forces & Motion

3.3

Waves

3.4

Electricity & Magnetism

3.5

Matter

3.6

Space Physics

4

Disciplinary Knowledge

Practice questions on General Principles of Radiation

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
Answer all questions on General Principles of Radiation

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium