What is a solar day?

Describe the apparent motion of the moon and stars?

What is a sidereal day?

Explain the phases of the moon.

What is a lunar month?

Explain the phases of the moon with a diagram.

Why do the Sun and the Moon appear to be the same size from the earth?

Explain both types of eclipses?

Draw a diagram of a solar eclipse.

Draw a diagram of a lunar eclipse.

Why is there not a lunar eclipse every month?

What planets can be seen with the naked eye? What does the amount of light that a planet reflects depend on?

What is retrograde motion and why did it change the way we viewed the solar system?

Use a diagram to show retrograde motion.

Why does the sky look different in summer and winter?

How do we locate stars?

What is the celestial sphere? What is it used for?

What are the declination and right ascension measured in?

What is the ecliptic and what does it show?

Show this in a diagram.

What is refraction?

What happens when a wave hits the boundary between two materials at an angle?

Draw a diagram to show light entering and leaving a glass block.

Explain the parts of the diagram.

How can we bring light to focus?

Show this in a diagram.

Explain focal length and power for convex lenses.

Explain the light from stars?

Show an image formed below the principal axis.

What are objects that look larger than a point called?

How do we draw ray diagrams of extended objects?

Draw a diagram to show this.

What is a simple telescope made up from?

Explain the eyepiece and objective lens in more detail

What happens when you look at a distant object?

What happens when we look through a telescope? Explain magnification.

Draw a diagram to summarise general simple telescopes.