Question

question 1
which type of heat transfer occurs when particles collide with those they are in contact with or touch?
radiation
conduction
convection
question 2
which type of heat transfer uses electromagnetic waves and can transfer thermal energy through a vacuum?
radiation
conduction
convection
1 pts

Explanation:

• Question 1: Conduction is the heat transfer mode where particles in direct contact (colliding) transfer heat. For example, when you touch a hot pan, heat is conducted from the pan to your hand.
• Question 2: Radiation uses electromagnetic waves (like infrared) to transfer thermal energy. It can occur in a vacuum (e.g., the Sun's heat reaching Earth through space).

Answer:

• Question 1: conduction
• Question 2: radiation