A typical mattress has a network of springs that provide support. If you sit on a mattress, the springs compress. A heavier person compresses the springs more than a lighter person. Use the properties of springs and spring forces to explain why this is so.

Assume the springs obey Hooke's law and the person is in equilibrium. If the person is heavier then the weight force is (blank) , so the upwad force of the springs must also be (blank) so the sum can be (blank).

To push up more, the springs must be (blank)

WORD BANK:

compressed less, compressed more, smaller, greater, zero

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

f is prop to m1xm2 double m1 double force

if they have a finite resultant

this could be newton#'s law of cooling. the cooling curve is exponential