Which of the following is not characteristic of a behavior? a. it can be observed. b. it can be recorded. c. it can be influenced by the environment. d. it can include a person’s thoughts. the answer is d

What kind of simple machine is a catapult?

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system