The Sun is a luminous object - Junior Cycle Science - Question a - 2017
Question a
The Sun is a luminous object. It is our primary source of energy.
(i) What is energy?
(ii) Explain why the Sun is considered our primary source of energy.
(iii) ... show full transcript
Worked Solution & Example Answer:The Sun is a luminous object - Junior Cycle Science - Question a - 2017
Step 1
What is energy?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Energy is defined as the ability to do work. It is a property of objects and systems that can be transformed into different forms but cannot be created or destroyed.
Step 2
Explain why the Sun is considered our primary source of energy.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The Sun provides energy for plants to make food through the process of photosynthesis. Additionally, it radiates heat and light, which are essential for sustaining life on Earth.
Step 3
How is heat from the Sun transferred to the Earth?
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Heat from the Sun is transferred to the Earth through radiation. The Sun emits energy in the form of rays that travel through the vacuum of space and heat the Earth upon contact.
Step 4
Explain how the Moon is often visible at night.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The Moon is a non-luminous object; it does not produce its own light. Instead, it reflects light from the Sun, making it visible at night when the Sun is no longer in the sky.
Step 5
State one disadvantage of using nuclear energy on Earth.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
One disadvantage of using nuclear energy on Earth is the risk of explosion. Nuclear facilities can produce harmful radiation, generate radioactive waste, and are often difficult to manage and control, leading to potential environmental hazards.
Join the Junior Cycle students using SimpleStudy...
