A model shows rays of sunlight moving straight from the sun perpendicular to the surface of the Earth. What are these rays called? (1 point)
• parallel rays
• indirect rays
• direct rays
• angled rays
Four seasons occur on Earth.
The rays of sunlight that move straight from the sun and are perpendicular to the surface of the Earth are called direct rays. To arrive at this answer, we can analyze the descriptions of the different options.
- "Parallel rays" refers to light rays that are parallel to each other, meaning they do not converge or diverge. This does not fit the given scenario, as the rays are described as coming straight from the sun and hitting the Earth's surface perpendicularly.
- "Indirect rays" suggests that the rays follow a curved or non-straight path before reaching the Earth's surface. However, the given scenario specifies that the rays move straight from the sun, ruling out this option.
- "Angled rays" implies that the rays are not perpendicular to the Earth's surface. Again, this contradicts the scenario, which specifically states that the rays are perpendicular to the surface.
By process of elimination, the correct answer is "direct rays." These rays are the most direct path that sunlight can take from the Sun to the Earth's surface when the light source is directly overhead.
direct rays
The main factor in how the changing seasons occur is the tilt of the Earth on its axis in relation to the sun.
If the Northern Hemisphere is tilted toward the sun in the diagram, it indicates that it is summer in the Northern Hemisphere.
The rays of sunlight that move straight from the sun and are perpendicular to the surface of the Earth are called "direct rays."
Animation shows a complete revolution of the Earth around the sun. What happens during this time? (1 point)
• The moon makes one complete phase change.
• Earth experiences a complete day.
• Day turns to night.
• Four seasons occur on Earth.
A diagram explaining the cause of the seasons shows the Earth in its orbit around the sun. What is the main factor in how the changing seasons occur? (1 point)
• the speed at which the Earth rotates during the year
• how fast the sun sends rays to the Earth
• the tilt of the Earth on its axis in relation to the sun
• how close the Earth is to the sun
A diagram depicting one of the seasons shows the Northern Hemisphere tilted toward the sun. Which season is it in the Northern Hemisphere? (1 point)
• summer
• autumn
• spring
• winter