You have been studying heat transfer in science class. your task today is to make a solar oven to make s'mores: graham crackers, marshmallows, and melted chocolate. when you have successfully completed your oven, you get to eat the s'mores with the melted chocolate and soft marshmallows. how is heat energy transferred to achieve this task?

a)conduction
b)convection
c)insulation
d)radiation

you can cut your hand off if your not

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.