Question

1. which of the following affect(s) the amount of energy transfer needed to change the temperature of a material by a certain amount?

a) the amount of the material

b) the thermal mass of the material

c) the time of day

d) choices a and b

Explanation:

To determine what affects energy transfer for temperature change, we use the formula \( Q = mc\Delta T \), where \( Q \) is energy, \( m \) is mass (amount of material), \( c \) is specific heat (related to thermal mass), and \( \Delta T \) is temperature change.

• Option a: More material (mass) needs more energy, so it affects.
• Option b: Thermal mass (related to \( mc \)) determines energy needed, so it affects.
• Option c: Time of day doesn’t relate to energy for temperature change (depends on material properties and amount).
• Option d: Since a and b both affect, this is correct.

Answer:

d) Choices A and B