Question

Define- a. Stimulus b. Impulse

Answer 1

Answer:

something that causes activity, development or interest

An impulse is a sudden force or desire — this could be an electrical impulse, or an impulse to get some pizza. If you act on a sudden feeling or thought, you're following an impulse. ... Another meaning of impulse is an electrical charge or pulse

Answer 2

a)STIMULUS---is a detectable change in the physical or chemical structure of an organism's internal or external environment. The ability of an organism or organ to detect external stimuli, so that an appropriate reaction can be made, is called sensitivity.

B) IMPULSE----is the integral of a force, F, over the time interval, t, for which it acts. Since force is a vector quantity, impulse is also a vector quantity. Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the resultant direction