Curriculum
Course: Igcse Physics
time left:
:
:
Login

Curriculum

Igcse Physics

1. Motion, Forces and Energy

0/161 Dr Dabour Hub Science Diagram and Course Material

2. Thermal Physics

0/75 Dr Dabour Hub Science Diagram and Course Material

3. Waves

0/77 Dr Dabour Hub Science Diagram and Course Material

4. Electricity and Magnetism

0/119 Dr Dabour Hub Science Diagram and Course Material

5. Nuclear Physics

0/39 Dr Dabour Hub Science Diagram and Course Material

6. Space Physics

0/47 Dr Dabour Hub Science Diagram and Course Material
Quiz

6.1.4 Light Speed Calculations – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
1.
What is the speed of light in a vacuum?
3.0 × 10⁶ m/s
3.0 × 10¹⁰ m/s
3.0 × 10⁸ m/s
340 m/s
2.
A light-year is a unit of…
Time
Speed
Brightness
Distance
3.
Light from the Moon takes 1.3 s to reach us. How far away is the Moon?
2.3 × 10⁸ m
3.9 × 10⁸ m
3.9 × 10⁷ m
1.3 × 10⁸ m
4.
A radio signal takes 20 minutes to reach a space probe. How far away is the probe?
6.0 × 10⁹ m
3.6 × 10⁹ m
3.6 × 10¹¹ m
6.0 × 10¹¹ m
5.
A star is 100 light-years away. We see it as it was…
100 years ago
Now
100 seconds ago
100 years in the future
6.
A radar echo returns after 4.0 s. How far is the object?
1.2 × 10⁹ m
6.0 × 10⁸ m
3.0 × 10⁸ m
7.5 × 10⁷ m
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Accepted payment methods